Ortiz, Michael

Article from CaltechAUTHORS

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• Salahshoor, Hossein and Ortiz, Michael (2024) Application of Data-Driven computing to patient-specific prediction of the viscoelastic response of human brain under transcranial ultrasound stimulation; Biomechanics and Modeling in Mechanobiology; 10.1007/s10237-024-01830-w
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• Romero, Ignacio and Ortiz, Michael (2023) Extended molecular dynamics: Seamless temporal coarse-graining and transition between deterministic and probabilistic paradigms; European Journal of Mechanics - A/Solids; Vol. 97; 104858; 10.1016/j.euromechsol.2022.104858
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• Karapiperis, K. and Ortiz, M., el al. (2021) Data-Driven nonlocal mechanics: Discovering the internal length scales of materials; Computer Methods in Applied Mechanics and Engineering; Vol. 386; Art. No. 114039; 10.1016/j.cma.2021.114039
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• Carrara, P. and Ortiz, M., el al. (2021) Data-driven rate-dependent fracture mechanics; Journal of the Mechanics and Physics of Solids; Vol. 155; Art. No. 104559; 10.1016/j.jmps.2021.104559
• Eggersmann, Robert and Stainier, Laurent, el al. (2021) Efficient data structures for model-free data-driven computational mechanics; Computer Methods in Applied Mechanics and Engineering; Vol. 382; Art. No. 113855; 10.1016/j.cma.2021.113855
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• Gupta, Prateek and Ortiz, Michael, el al. (2021) Nonequilibrium thermomechanics of Gaussian phase packet crystals: Application to the quasistatic quasicontinuum method; Journal of the Mechanics and Physics of Solids; Vol. 153; Art. No. 104495; 10.1016/j.jmps.2021.104495
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• Ariza, M. P. and Ortiz, M. (2021) A semi-discrete line-free method of monopoles for dislocation dynamics; Extreme Mechanics Letters; Vol. 45; Art. No. 101267; 10.1016/j.eml.2021.101267
• Briccola, D. and Cuni, M., el al. (2021) Experimental Validation of the Attenuation Properties in the Sonic Range of Metaconcrete Containing Two Types of Resonant Inclusions; Experimental Mechanics; Vol. 61; No. 3; 515-532; 10.1007/s11340-020-00668-4
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• Manav, M. and Ortiz, M. (2021) Molecular dynamics study of the shock response of polyurea; Polymer; Vol. 212; Art. No. 123109; 10.1016/j.polymer.2020.123109
• Eggersmann, Robert and Stainier, Laurent, el al. (2021) Model-free data-driven computational mechanics enhanced by tensor voting; Computer Methods in Applied Mechanics and Engineering; Vol. 373; Art. No. 113499; 10.1016/j.cma.2020.113499
• Febrianto, Eky and Ortiz, Michael, el al. (2021) Mollified finite element approximants of arbitrary order and smoothness; Computer Methods in Applied Mechanics and Engineering; Vol. 373; Art. No. 113513; 10.1016/j.cma.2020.113513
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• Salahshoor, Hossein and Shapiro, Mikhail G., el al. (2020) Transcranial Focused Ultrasound Generates Skull-Conducted Shear Waves: Computational Model and Implications for Neuromodulation; Applied Physics Letters; Vol. 117; No. 3; Art. No. 033702; PMCID PMC7386437; 10.1063/5.0011837
• Conti, S. and Müller, S., el al. (2020) Data-Driven Finite Elasticity; Archive for Rational Mechanics and Analysis; Vol. 237; No. 1; 1-33; 10.1007/s00205-020-01490-x
• Schill, W. and Mendez, J. P., el al. (2020) Shear localization as a mesoscopic stress-relaxation mechanism in fused silica glass at high strain rates; Journal of the Mechanics and Physics of Solids; Vol. 140; Art. No. 103940; 10.1016/j.jmps.2020.103940
• Weinberg, Kerstin and Ortiz, Michael (2020) Ice Penetration by a Bluff-Body Melting Probe; Journal of Applied Mechanics; Vol. 87; No. 6; Art. No. 061003; 10.1115/1.4046633
• Ríos, J. D. and Cifuentes, H., el al. (2020) Effect of polypropylene fibers on the fracture behavior of heated ultra-high performance concrete; International Journal of Fracture; Vol. 223; No. 1-2; 173-187; 10.1007/s10704-019-00407-4
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• Dahlberg, Carl F. O. and Ortiz, Michael (2020) Size Scaling of Plastic Deformation in Simple Shear: Fractional Strain-Gradient Plasticity and Boundary Effects in Conventional Strain-Gradient Plasticity; Journal of Applied Mechanics; Vol. 87; No. 3; Art. No. 031017; 10.1115/1.4045872
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• Heyden, S. and Ortiz, M. (2019) Functional optimality of the sulcus pattern of the human brain; Mathematical Medicine and Biology; Vol. 36; No. 2; 207-221; 10.1093/imammb/dqy007
• Dahlberg, C. F. O. and Ortiz, M. (2019) Fractional strain-gradient plasticity; European Journal of Mechanics - A/Solids; Vol. 75; 348-354; 10.1016/j.euromechsol.2019.02.006
• Sun, X. and Ariza, M. P., el al. (2019) Atomistic Modeling and Analysis of Hydride Phase Transformation in Palladium Nanoparticles; Journal of the Mechanics and Physics of Solids; Vol. 125; 360-383; 10.1016/j.jmps.2019.01.006
• Kirchdoerfer, Trenton and Ortiz, Michael, el al. (2019) Topology Optimization of Solid Rocket Fuel; AIAA Journal; Vol. 57; No. 4; 1684-1690; 10.2514/1.J057807
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• Heyden, S. and Ortiz, M. (2018) Optimizing information transmission rates drives brain gyrification; Proceedings of the Royal Society A: Mathematical, physical, and engineering sciences; Vol. 474; No. 2219; Art. No. 20180527; 10.1098/rspa.2018.0527
• Stebner, Aaron P. and Wehrenberg, Christopher, el al. (2018) Strength of tantalum shocked at ultrahigh pressures; Materials Science and Engineering A; Vol. 732; 220-227; 10.1016/j.msea.2018.06.105
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• Ponga, M. and Bhattacharya, K., el al. (2016) A sublinear-scaling approach to density-functional-theory analysis of crystal defects; Journal of the Mechanics and Physics of Solids; Vol. 95; 530-556; 10.1016/j.jmps.2016.05.029
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• Mitchell, Sarah L. and Ortiz, Michael (2016) Computational multiobjective topology optimization of silicon anode structures for lithium-ion batteries; Journal of Power Sources; Vol. 326; 242-251; 10.1016/j.jpowsour.2016.06.136
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• Heyden, S. and Ortiz, M. (2016) Oncotripsy: Targeting cancer cells selectively via resonant harmonic excitation; Journal of the Mechanics and Physics of Solids; Vol. 92; 164-175; 10.1016/j.jmps.2016.04.016
• Kirchdoerfer, T. and Ortiz, M. (2016) Data-driven computational mechanics; Computer Methods in Applied Mechanics and Engineering; Vol. 304; 81-101; 10.1016/j.cma.2016.02.001
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• Conti, Sergio and Ortiz, Michael (2016) Optimal Scaling in Solids Undergoing Ductile Fracture by Crazing; Archive for Rational Mechanics and Analysis; Vol. 219; No. 2; 607-636; 10.1007/s00205-015-0901-y
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• Arroyo, M. and Ortiz, M. (2006) Local maximum-entropy approximation schemes: a seamless bridge between finite elements and meshfree methods; International Journal for Numerical Methods in Engineering; Vol. 65; No. 13; 2167-2202; 10.1002/nme.1534
• Yang, Q. and Stainier, L., el al. (2006) A variational formulation of the coupled thermo-mechanical boundary-value problem for general dissipative solids; Journal of the Mechanics and Physics of Solids; Vol. 54; No. 2; 401-424; 10.1016/j.jmps.2005.08.010
• Arias, I. and Serebrinsky, S., el al. (2006) A phenomenological cohesive model of ferroelectric fatigue; Acta Materialia; Vol. 54; No. 4; 975-984; 10.1016/j.actamat.2005.10.035
• Weinberg, K. and Mota, A., el al. (2006) A variational constitutive model for porous metal plasticity; Computational Mechanics; Vol. 37; No. 2; 142-152; 10.1007/s00466-005-0685-2
• Yang, Q. and Mota, A., el al. (2006) A Finite-Deformation Constitutive Model of Bulk Metallic Glass Plasticity; Computational Mechanics; Vol. 37; No. 2; 194-204; 10.1007/s00466-005-0690-5
• Mota, Alejandro and Knap, Jaroslaw, el al. (2006) Three-dimensional fracture and fragmentation of artificial kidney stones; Journal of Physics: Conference Series; Vol. 46; 299-303; 10.1088/1742-6596/46/1/041
• Serebrinsky, S. and Ortiz, M. (2005) A hysteretic cohesive-law model of fatigue-crack nucleation; Scripta Materialia; Vol. 53; No. 10; 1193-1196; 10.1016/j.scriptamat.2005.07.015
• Ariza, M. P. and Ortiz, M. (2005) Discrete Crystal Elasticity and Discrete Dislocations in Crystals; Archive for Rational Mechanics and Analysis; Vol. 178; No. 2; 149-226; 10.1007/s00205-005-0391-4
• Cirak, Fehmi and Ortiz, Michael, el al. (2005) A cohesive approach to thin-shell fracture and fragmentation; Computer Methods in Applied Mechanics and Engineering; Vol. 194; No. 21-24; 2604-2618; 10.1016/j.cma.2004.07.048
• Marian, Jaime and Knap, Jaroslaw, el al. (2005) Nanovoid deformation in aluminum under simple shear; Acta Materialia; Vol. 53; No. 10; 2893-2900; 10.1016/j.actamat.2005.02.046
• Conti, Sergio and Ortiz, Michael (2005) Dislocation Microstructures and the Effective Behavior of Single Crystals; Archive for Rational Mechanics and Analysis; Vol. 176; No. 1; 103-147; 10.1007/s00205-004-0353-2
• Weinberg, K. and Ortiz, M. (2005) Shock wave induced damage in kidney tissue; Computational Materials Science; Vol. 32; No. 3-4; 588-593; 10.1016/j.commatsci.2004.09.005
• Yang, Q. and Mota, A., el al. (2005) A class of variational strain-localization finite elements; International Journal for Numerical Methods in Engineering; Vol. 62; No. 8; 1013-1037; 10.1002/nme.1199
• Klug, W. S. and Feldmann, M. T., el al. (2005) Three-dimensional director-field predictions of viral DNA packing arrangements; Computational Mechanics; Vol. 35; No. 2; 146-152; 10.1007/s00466-004-0613-x
• Hayes, Robin L. and Fago, Matt, el al. (2005) Prediction of Dislocation Nucleation During Nanoindentation by the Orbital-Free Density Functional Theory Local Quasi-continuum Method; Multiscale Modeling and Simulation; Vol. 4; No. 2; 359-389; 10.1137/080727531
• Sivakumar, Srinivasan M. and Ortiz, Michael (2004) Microstructure evolution in the equal channel angular extrusion process; Computer Methods in Applied Mechanics and Engineering; Vol. 193; No. 48-51; 5177-5194; 10.1016/j.cma.2004.01.036
• Weinberg, Kerstin and Colonius, Tim, el al. (2004) A Model for Kidney Tissue Damage under High Speed Loading; Proceedings in Applied Mathematics and Mechanics; Vol. 4; No. 1; 234-235; 10.1002/pamm.200410098
• Koslowski, M. and Ortiz, M. (2004) A multi-phase field model of planar dislocation networks; Modelling and Simulation in Materials Science and Engineering; Vol. 12; No. 6; 1087-1097; 10.1088/0965-0393/12/6/003
• Marian, Jaime and Knap, Jaroslaw, el al. (2004) Nanovoid Cavitation by Dislocation Emission in Aluminum; Physical Review Letters; Vol. 93; No. 16; Art. no. 165503; 10.1103/PhysRevLett.93.165503
• Serebrinsky, S. and Carter, E. A., el al. (2004) A quantum-mechanically informed continuum model of hydrogen embrittlement; Journal of the Mechanics and Physics of Solids; Vol. 52; No. 10; 2403-2430; 10.1016/j.jmps.2004.02.010
• Caspersen, Kyle J. and Lew, Adrian, el al. (2004) Importance of Shear in the bcc-to-hcp Transformation in Iron; Physical Review Letters; Vol. 93; No. 11; Art. No. 115501; 10.1103/PhysRevLett.93.115501
• Thoutireddy, P. and Ortiz, M. (2004) A variational r-adaption and shape-optimization method for finite-deformation elasticity; International Journal for Numerical Methods in Engineering; Vol. 61; No. 1; 1-21; 10.1002/nme.1052
• Fago, Matt and Hayes, Robin L., el al. (2004) Density-functional-theory-based local quasicontinuum method: Prediction of dislocation nucleation; Physical Review B; Vol. 70; No. 10; Art. No. 100102(R); 10.1103/PhysRevB.70.100102
• Ortiz, M. and Pandolfi, A. (2004) A variational Cam-clay theory of plasticity; Computer Methods in Applied Mechanics and Engineering; Vol. 193; No. 27-29; 2645-2666; 10.1016/j.cma.2003.08.008
• Lew, A. and Marsden, J. E., el al. (2004) Variational time integrators; International Journal for Numerical Methods in Engineering; Vol. 60; No. 1; 153-212; 10.1002/nme.958
• Hayes, Robin L. and Ortiz, Michael, el al. (2004) Universal binding-energy relation for crystals that accounts for surface relaxation; Physical Review B; Vol. 69; No. 17; Art. No. 172104; 10.1103/PhysRevB.69.172104
• Müller, S. and Ortiz, M. (2004) On the Γ-convergence of discrete dynamics and variational integrators; Journal of Nonlinear Science; Vol. 14; No. 3; 279-296; 10.1007/BF02666023
• Studer, Vincent and Hang, Giao, el al. (2004) Scaling properties of a low-actuation pressure microfluidic valve; Journal of Applied Physics; Vol. 95; No. 1; 393-398; 10.1063/1.1629781
• Lew, Adrian and Neff, Patrizio, el al. (2004) Optimal BV estimates for a discontinuous Galerkin method for linear elasticity; Applied Mathematics Research eXpress; Vol. 2004; No. 3; 73-106; 10.1155/S1687120004020052
• Aubry, S. and Ortiz, M. (2003) The mechanics of deformation-induced subgrain-dislocation structures in metallic crystals at large strains; Proceedings of the Royal Society A: Mathematical, physical, and engineering sciences; Vol. 459; No. 2040; 3131-3158; 10.1098/rspa.2003.1179
• Klug, W. S. and Ortiz, M. (2003) A director-field model of DNA packaging in viral capsids; Journal of the Mechanics and Physics of Solids; Vol. 51; No. 10; 1815-1847; 10.1016/S0022-5096(03)00071-1
• Aubry, Sylvie and Fago, Matt, el al. (2003) A constrained sequential-lamination algorithm for the simulation of sub-grid microstructure in martensitic materials; Computer Methods in Applied Mechanics and Engineering; Vol. 192; No. 26-27; 2823-2843; 10.1016/S0045-7825(03)00260-3
• Cirak, Fehmi and Cisternas, Jaime E., el al. (2003) Oscillatory Thermomechanical Instability of an Ultrathin Catalyst; Science; Vol. 300; No. 5627; 1932-1936; 10.1126/science.1083909
• Knap, J. and Ortiz, M. (2003) Effect of Indenter-Radius Size on Au(001) Nanoindentation; Physical Review Letters; Vol. 90; No. 22; Art. No. 226102; 10.1103/PhysRevLett.90.226102
• Mota, A. and Klug, W. S., el al. (2003) Finite-element simulation of firearm injury to the human cranium; Computational Mechanics; Vol. 31; No. 1-2; 115-121; 10.1007/s00466-002-0398-8
• Lew, A. and Marsden, J. E., el al. (2003) Asynchronous Variational Integrators; Archive for Rational Mechanics and Analysis; Vol. 167; No. 2; 85-146; 10.1007/s00205-002-0212-y
• Stainier, L. and Cuitiño, A. M., el al. (2003) Multiscale modelling of hardening in BCC crystal plasticity; Journal de Physique IV (Proceedings); Vol. 105; 157-164; 10.1051/jp4:20030183
• Fetecau, R. C. and Marsden, J. E., el al. (2003) Nonsmooth Lagrangian mechanics and variational collision integrators; SIAM Journal on Applied Dynamical Systems; Vol. 2; No. 3; 381-416; 10.1137/S1111111102406038
• Yu, C. and Ortiz, M., el al. (2003) 3D Modelling of Impact Failure in Sandwich Structures; European Structural Integrity Society; Vol. 32; 527-537; 10.1016/S1566-1369(03)80122-X
• Yu, C. and Pandolfi, A., el al. (2002) Three-dimensional modeling of intersonic shear-crack growth in asymmetrically loaded unidirectional composite plates; International Journal of Solids and Structures; Vol. 39; No. 25; 6135-6157; 10.1016/S0020-7683(02)00466-3
• Koslowski, M. and Cuitiño, A. M., el al. (2002) A phase-field theory of dislocation dynamics, strain hardening and hysteresis in ductile single crystals; Journal of the Mechanics and Physics of Solids; Vol. 50; No. 12; 2597-2635; 10.1016/S0022-5096(02)00037-6
• Pandolfi, A. and Ortiz, M. (2002) An Efficient Adaptive Procedure for Three-Dimensional Fragmentation Simulations; Engineering with Computers; Vol. 18; No. 2; 148-159; 10.1007/s003660200013
• Nguyen, O. and Ortiz, M. (2002) Coarse-graining and renormalization of atomistic binding relations and universal macroscopic cohesive behavior; Journal of the Mechanics and Physics of Solids; Vol. 50; No. 8; 1727-1741; 10.1016/S0022-5096(01)00133-8
• Stainier, L. and Cuitiño, A. M., el al. (2002) A micromechanical model of hardening, rate sensitivity and thermal softening in BCC single crystals; Journal of the Mechanics and Physics of Solids; Vol. 50; No. 7; 1511-1545; 10.1016/S0022-5096(01)00114-4
• Gioia, G. and DeSimone, A., el al. (2002) Folding energetics in thin-film diaphragms; Proceedings of the Royal Society A: Mathematical, physical, and engineering sciences; Vol. 458; No. 2021; 1223-1229; 10.1098/rspa.2001.0921
• Molinari, J. F. and Ortiz, M. (2002) A study of solid-particle erosion of metallic targets; International Journal of Impact Engineering; Vol. 27; No. 4; 347-358; 10.1016/S0734-743X(01)00055-0
• Pandolfi, A. and Kane, C., el al. (2002) Time-discretized variational formulation of non-smooth frictional contact; International Journal for Numerical Methods in Engineering; Vol. 53; No. 8; 1801-1829; 10.1002/nme.361
• Molinari, J. F. and Ortiz, M. (2002) Three-dimensional adaptive meshing by subdivision and edge-collapse in finite-deformation dynamic-plasticity problems with application to adiabatic shear banding; International Journal for Numerical Methods in Engineering; Vol. 53; No. 5; 1101-1126; 10.1002/nme.325
• Cirak, Fehmi and Scott, Michael J., el al. (2002) Integrated modeling, finite-element analysis, and engineering design for thin-shell structures using subdivision; Computer-Aided Design; Vol. 34; No. 2; 137-148; 10.1016/S0010-4485(01)00061-6
• Ortiz, M. and Radovitzky, R. A., el al. (2001) The computation of the exponential and logarithmic mappings and their first and second linearizations; International Journal for Numerical Methods in Engineering; Vol. 52; No. 12; 1431-1441; 10.1002/nme.263
• Ruiz, Gonzalo and Pandolfi, Anna, el al. (2001) Three‐dimensional cohesive modeling of dynamic mixed‐mode fracture; International Journal for Numerical Methods in Engineering; Vol. 52; No. 1-2; 97-120; 10.1002/nme.273
• Knapp, J. and Ortiz, M. (2001) An analysis of the quasicontinuum method; Journal of the Mechanics and Physics of Solids; Vol. 49; No. 9; 1899-1923; 10.1016/S0022-5096(01)00034-5
• Yadav, S. and Repetto, E. A., el al. (2001) A computational study of the influence of thermal softening on ballistic penetration in metals; International Journal of Impact Engineering; Vol. 25; No. 8; 787-803; 10.1016/S0734-743X(01)00008-2
• Nguyen, O. and Repetto, E. A., el al. (2001) A Cohesive model of fatigue crack growth; International Journal of Fracture; Vol. 110; No. 4; 351-369; 10.1023/A:1010839522926
• Cirak, Fehmi and Ortiz, Michael (2001) Fully C^1‐conforming subdivision elements for finite deformation thin‐shell analysis; International Journal for Numerical Methods in Engineering; Vol. 51; No. 7; 813-833; 10.1002/nme.182
• Lewis, A. C. and Radovitzky, R., el al. (2001) An artificial viscosity method for the Lagrangian analysis of shocks in solids with strength on unstructured, arbitrary order tetrahedral meshes; Journal of Computer-Aided Materials Design; Vol. 8; No. 2/3; 213-231; 10.1023/A:1020064403005
• Cuitiño, Alberto M. and Stainier, Laurent, el al. (2001) A multiscale approach for modeling crystalline solids; Journal of Computer-Aided Materials Design; Vol. 8; No. 2/3; 127-149; 10.1023/A:1020012431230
• Krysl, Petr and Ortiz, Michael (2001) Extraction of boundary representation from surface triangulations; International Journal for Numerical Methods in Engineering; Vol. 50; No. 7; 1737-1758; 10.1002/nme.94
• Krysl, Petr and Ortiz, Michael (2001) Variational Delaunay approach to the generation of tetrahedral finite element meshes; International Journal for Numerical Methods in Engineering; Vol. 50; No. 7; 1681-1700; 10.1002/nme.91
• Ortiz, M. and Cuitiño, A. M., el al. (2001) Mixed Atomistic–Continuum Models of Material Behavior: The Art of Transcending Atomistics and Informing Continua; MRS Bulletin; Vol. 26; No. 03; 216-221; 10.1557/mrs2001.45
• Thoutireddy, P. and Molinari, J. F., el al. (2001) Tetrahedral composite finite elements; International Journal for Numerical Methods in Engineering; Vol. 53; No. 6; 1337-1351; 10.1002/nme.337
• Molinari, J. F. and Ortiz, M., el al. (2001) Finite‐element modeling of dry sliding wear in metals; Engineering Computations; Vol. 18; No. 3/4; 592-610; 10.1108/00368790110407257
• Kane, C. and Marsden, J. E., el al. (2000) Variational Integrators and the Newmark Algorithm for Conservative and Dissipative Mechanical Systems; International Journal for Numerical Methods in Engineering; Vol. 49; No. 10; 1295-1325; 10.1002/1097-0207(20001210)49:10<1295::AID-NME993>3.0.CO;2-W
• Ortiz, M. and Repetto, E. A., el al. (2000) A theory of subgrain dislocation structures; Journal of the Mechanics and Physics of Solids; Vol. 48; No. 10; 2077-2114; 10.1016/S0022-5096(99)00104-0
• Ruiz, Gonzalo and Ortiz, Michael, el al. (2000) Three-dimensional finite-element simulation of the dynamic Brazilian tests on concrete cylinders; International Journal for Numerical Methods in Engineering; Vol. 48; No. 7; 963-994; 10.1002/(SICI)1097-0207(20000710)48:7<963::AID-NME908>3.0.CO;2-X
• Pandolfi, A. and Guduru, P. R., el al. (2000) Three dimensional cohesive-element analysis and experiments of dynamic fracture in C300 steel; International Journal of Solids and Structures; Vol. 37; No. 27; 3733-3760; 10.1016/S0020-7683(99)00155-9
• Radovitzky, R. and Ortiz, M. (2000) Tetrahedral mesh generation based on node insertion in crystal lattice arrangements and advancing-front-Delaunay triangulation; Computer Methods in Applied Mechanics and Engineering; Vol. 187; No. 3-4; 543-569; 10.1016/S0045-7825(99)00339-4
• Cirak, Fehmi and Ortiz, Michael, el al. (2000) Subdivision surfaces: a new paradigm for thin-shell finite-element analysis; International Journal for Numerical Methods in Engineering; Vol. 47; No. 12; 2039-2072; 10.1002/(SICI)1097-0207(20000430)47:12<2039::AID-NME872>3.0.CO;2-1
• Repetto, E. A. and Radovitzky, R., el al. (2000) Finite element simulation of dynamic fracture and fragmentation of glass rods; Computer Methods in Applied Mechanics and Engineering; Vol. 183; No. 1-2; 3-14; 10.1016/S0045-7825(99)00208-X
• Aivazis, Michael and Goddard, William A., el al. (2000) A virtual test facility for simulating the dynamic response of materials; Computing in Science & Engineering; Vol. 2; No. 2; 42-53; 10.1109/5992.825748
• Guo, Yong and Ortiz, Michael, el al. (2000) Triangular composite finite elements; International Journal for Numerical Methods in Engineering; Vol. 47; No. 1-3; 287-316; 10.1002/(SICI)1097-0207(20000110/30)47:1/3<287::AID-NME772>3.0.CO;2-M
• Tadmor, E. B. and Phillips, R., el al. (2000) Hierarchical modeling in the mechanics of materials; International Journal of Solids and Structures; Vol. 37; No. 1-2; 379-389; 10.1016/S0020-7683(99)00095-5
• Kane, C. and Repetto, E. A., el al. (1999) Finite element analysis of nonsmooth contact; Computer Methods in Applied Mechanics and Engineering; Vol. 180; No. 1-2; 1-26; 10.1016/S0045-7825(99)00034-1
• Phillips, Rob and Rodney, David, el al. (1999) Hierarchical models of plasticity: dislocation nucleation and interaction; Modelling and Simulation in Materials Science and Engineering; Vol. 7; No. 5; 769-780; 10.1088/0965-0393/7/5/309
• Shenoy, V. B. and Ortiz, M., el al. (1999) The atomistic structure and energy of nascent dislocation loops; Modelling and Simulation in Materials Science and Engineering; Vol. 7; No. 4; 603-619; 10.1088/0965-0393/7/4/309
• Kane, C. and Marsden, J. E., el al. (1999) Symplectic-energy-momentum preserving variational integrators; Journal of Mathematical Physics; Vol. 40; No. 7; 3353-3371; 10.1063/1.532892
• Tadmor, E.B. and Miller, R., el al. (1999) Nanoindentation and incipient plasticity; Journal of Materials Research; Vol. 14; No. 6; 2233-2250
• Ortiz, M. (1999) Plastic Yielding as a Phase Transition; Journal of Applied Mechanics; Vol. 66; No. 2; 289; 10.1115/1.2791048
• de-Andrés, A. and Pérez, J. L., el al. (1999) Elastoplastic finite element analysis of three-dimensional fatigue crack growth in aluminum shafts subjected to axial loading; International Journal of Solids and Structures; Vol. 36; No. 15; 2231-2258; 10.1016/S0020-7683(98)00059-6
• Radovitzky, R. and Ortiz, M. (1999) Error estimation and adaptive meshing in strongly nonlinear dynamic problems; Computer Methods in Applied Mechanics and Engineering; Vol. 172; No. 1-4; 203-240; 10.1016/S0045-7825(98)00230-8
• Ortiz, M. and Stainier, L. (1999) The variational formulation of viscoplastic constitutive updates; Computer Methods in Applied Mechanics and Engineering; Vol. 171; No. 3-4; 419-444; 10.1016/S0045-7825(98)00219-9
• Borcea, Liliana and Ortiz, Michael (1999) A multiscattering series for impedance tomography in layered media; Inverse Problems; Vol. 15; No. 2; 515-540; 10.1088/0266-5611/15/2/011
• Ortiz, M. and Pandolfi, A. (1999) Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis; International Journal for Numerical Methods in Engineering; Vol. 44; No. 9; 1267-1282; 10.1002/(SICI)1097-0207(19990330)44:9<1267::AID-NME486>3.0.CO;2-7
• Ortiz, M. and Repetto, E. A., el al. (1999) A continuum model of kinetic roughening and coarsening in thin films; Journal of the Mechanics and Physics of Solids; Vol. 47; No. 4; 697-730; 10.1016/S0022-5096(98)00102-1
• Ortiz, M. and Repetto, E. A. (1999) Nonconvex energy minimization and dislocation structures in ductile single crystals; Journal of the Mechanics and Physics of Solids; Vol. 47; No. 2; 397-462; 10.1016/S0022-5096(97)00096-3
• Repetto, E. A. and Radovitzky, R., el al. (1999) A Finite Element Study of Electromagnetic Riveting; Journal of Manufacturing Science and Engineering; Vol. 121; No. 1; 61; 10.1115/1.2830576
• Pandolfi, A. and Krysl, P., el al. (1999) Finite element simulation of ring expansion and fragmentation: The capturing of length and time scales through cohesive models of fracture; International Journal of Fracture; Vol. 95; No. 1/4; 279-297; 10.1023/A:1018672922734
• Gioia, G. and Ortiz, M. (1998) Determination of thin-film debonding parameters from telephone-cord measurements; Acta Materialia; Vol. 46; No. 1; 169-175; 10.1016/S1359-6454(97)00211-5
• Pandolfi, A. and Ortiz, M. (1998) Solid modeling aspects of three-dimensional fragmentation; Engineering with Computers; Vol. 14; No. 4; 287-308; 10.1007/BF01201761
• Radovitzky, R. and Ortiz, M. (1998) Lagrangian finite element analysis of Newtonian fluid flows; International Journal for Numerical Methods in Engineering; Vol. 43; No. 4; 607-619; 10.1002/(SICI)1097-0207(19981030)43:4<607::AID-NME399>3.0.CO;2-N
• Miller, Ron and Phillips, Rob, el al. (1998) A non-local formulation of the Peierls dislocation model; Journal of the Mechanics and Physics of Solids; Vol. 46; No. 10; 1845-1867; 10.1016/S0022-5096(98)00057-X
• Xu, G. and Bower, A. F., el al. (1998) The influence of crack trapping on the toughness of fiber reinforced composites; Journal of the Mechanics and Physics of Solids; Vol. 46; No. 10; 1815-1833; 10.1016/S0022-5096(98)00059-3
• Bhattacharya, K. and Ortiz, M., el al. (1998) Energy-based model of compressive splitting in heterogeneous brittle solids; Journal of the Mechanics and Physics of Solids; Vol. 46; No. 10; 2171-2181; 10.1016/S0022-5096(98)00026-X
• Miller, R. and Tadmor, E. B., el al. (1998) Quasicontinuum simulation of fracture at the atomic scale; Modelling and Simulation in Materials Science and Engineering; Vol. 6; No. 5; 607-638; 10.1088/0965-0393/6/5/008
• Miller, R. and Ortiz, M., el al. (1998) Quasicontinuum models of fracture and plasticity; Engineering Fracture Mechanics; Vol. 61; No. 3-4; 427-444; 10.1016/S0013-7944(98)00047-2
• Chen, J. Y. and Huang, Y., el al. (1998) Fracture analysis of cellular materials: A strain gradient model; Journal of the Mechanics and Physics of Solids; Vol. 46; No. 5; 789-828; 10.1016/S0022-5096(98)00006-4
• Shenoy, V. B. and Miller, R., el al. (1998) Quasicontinuum Models of Interfacial Structure and Deformation; Physical Review Letters; Vol. 08; No. 4; 742-745; 10.1103/PhysRevLett.80.742
• Bigoni, D. and Ortiz, M., el al. (1997) Effect of interfacial compliance on bifurcation of a layer bonded to a substrate; International Journal of Solids and Structures; Vol. 34; No. 33-34; 4305-4326; 10.1016/S0020-7683(97)00025-5
• Walter, M. E. and Ravichandran, G., el al. (1997) Computational modeling of damage evolution in unidirectional fiber reinforced ceramic matrix composites; Computational Mechanics; Vol. 20; No. 1-2; 192-198; 10.1007/s004660050239
• Repetto, E. A. and Ortiz, M. (1997) A micromechanical model of cyclic deformation and fatigue-crack nucleation in f.c.c. single crystals; Acta Materialia; Vol. 45; No. 6; 2577-2595; 10.1016/S1359-6454(96)00368-0
• Camacho, G. T. and Ortiz, M. (1997) Adaptive Lagrangian modelling of ballistic penetration of metallic targets; Computer Methods in Applied Mechanics and Engineering; Vol. 142; No. 3-4; 269-301; 10.1016/S0045-7825(96)01134-6
• Xu, G. and Argon, A. S., el al. (1997) Critical configurations for dislocation nucleation from crack tips; Philosophical Magazine A; Vol. 75; No. 2; 341-367; 10.1080/01418619708205146
• Tadmor, E. B. and Phillips, Rob, el al. (1996) Mixed Atomistic and Continuum Models of Deformation in Solids; Langmuir; Vol. 12; No. 19; 4529-4534; 10.1021/la9508912
• Ortiz, M. (1996) Computational micromechanics; Computational Mechanics; Vol. 18; No. 5; 321-338; 10.1007/BF00376129
• Camacho, G. T. and Ortiz, M. (1996) Computational modelling of impact damage in brittle materials; International Journal of Solids and Structures; Vol. 33; No. 20-22; 2899-2938; 10.1016/0020-7683(95)00255-3
• Ortiz, Miguel (1996) Juan Carlos Simo, 1952–1994; International Journal of Solids and Structures; Vol. 33; No. 20-22; 2859-2861; 10.1016/S0020-7683(96)90054-2
• Cuitiño, A. M. and Ortiz, M. (1996) Three-dimensional crack-tip fields in four-point-bending copper single-crystal specimens; Journal of the Mechanics and Physics of Solids; Vol. 44; No. 6; 863-904; 10.1016/0022-5096(96)00016-6
• Tadmor, E. B. and Ortiz, M., el al. (1996) Quasicontinuum analysis of defects in solids; Philosophical Magazine A; Vol. 73; No. 6; 1529-1563; 10.1080/01418619608243000
• Cuitiño, A. M. and Ortiz, M. (1996) Ductile fracture by vacancy condensation in f.c.c. single crystals; Acta Materialia; Vol. 44; No. 2; 427-436; 10.1016/1359-6454(95)00220-0
• Gioia, G. and Ortiz, M. (1996) The Two-Dimensional Structure of Dynamic Boundary Layers and Shear Bands in Thermoviscoplastic Solids; Journal of the Mechanics and Physics of Solids; Vol. 44; No. 2; 251-292; 10.1016/0022-5096(95)00071-2
• Marusich, T. D. and Ortiz, M. (1995) Modelling and simulation of high-speed machining; International Journal for Numerical Methods in Engineering; Vol. 38; No. 21; 3675-3694; 10.1002/nme.1620382108
• Xu, G. and Argon, A. S., el al. (1995) Nucleation of dislocations from crack tips under mixed modes of loading: Implications for brittle against ductile behaviour of crystals; Philosophical Magazine A; Vol. 72; No. 2; 415-451; 10.1080/01418619508239933
• Xu, G. and Ortiz, M. (1993) A variational boundary integral method for the analysis of 3-D cracks of arbitrary geometry modelled as continuous distributions of dislocation loops; International Journal for Numerical Methods in Engineering; Vol. 36; No. 21; 3675-3701; 10.1002/nme.1620362107
• Gallego, Rafael and Ortiz, Michael (1993) A harmonic/anharmonic energy partition method for lattice statics computations; Modelling and Simulation in Materials Science and Engineering; Vol. 1; No. 4; 417-436; 10.1088/0965-0393/1/4/006
• Bower, A. F. and Ortiz, M. (1993) The Influence of Grain Size on the Toughness of Monolithic Ceramics; Journal of Engineering Materials and Technology; Vol. 115; No. 3; 228-236; 10.1115/1.2904212
• Cuitiño, A. M. and Ortiz, M. (1993) Computational modelling of single crystals; Modelling and Simulation in Materials Science and Engineering; Vol. 1; No. 3; 225-263; 10.1088/0965-0393/1/3/001
• Bower, A. F. and Ortiz, M. (1993) An Analysis of Crack Trapping by Residual Stresses in Brittle Solids; Journal of Applied Mechanics; Vol. 60; No. 1; 175-182; 10.1115/1.2900742
• Ortiz, M. and Suresh, S. (1993) Statistical Properties of Residual Stresses and Intergranular Fracture in Ceramic Materials; Journal of Applied Mechanics; Vol. 60; No. 1; 77-84; 10.1115/1.2900782
• Espinosa, H. D. and Raiser, G., el al. (1992) Performance of the star‐shaped flyer in the study of brittle materials: Three dimensional computer simulations and experimental observations; Journal of Applied Physics; Vol. 72; No. 8; 3451-3457; 10.1063/1.351419
• Mohan, R. and Ortiz, M., el al. (1992) Mode mixity effects on crack tip deformation in ductile single crystals; Acta Metallurgica et Materialia; Vol. 40; No. 8; 1907-1922; 10.1016/0956-7151(92)90177-G
• Mohan, R. and Ortiz, M., el al. (1992) Influence of Cracking Direction on Interfacial Fracture in Bicrystals With Symmetric Tilt Boundary; Journal of Applied Mechanics; Vol. 59; No. 1; 84-91; 10.1115/1.2899469
• Ortiz, M. and Molinari, A. (1992) Effect of Strain Hardening and Rate Sensitivity on the Dynamic Growth of a Void in a Plastic Material; Journal of Applied Mechanics; Vol. 59; No. 1; 48-53; 10.1115/1.2899463
• Suo, Z. and Ortiz, M., el al. (1992) Stability of solids with interfaces; Journal of the Mechanics and Physics of Solids; Vol. 40; No. 3; 613-640; 10.1016/0022-5096(92)80006-C
• Cuitiño, A. M. and Ortiz, M. (1992) A material‐independent method for extending stress update algorithms from small-strain plasticity to finite plasticity with multiplicative kinematics; Engineering Computations; Vol. 9; No. 4; 437-451; 10.1108/eb023876
• Mohan, R. and Ortiz, M., el al. (1992) An analysis of cracks in ductile single crystals—II. Mode I loading; Journal of the Mechanics and Physics of Solids; Vol. 40; No. 2; 315-337; 10.1016/S0022-5096(05)80015-8
• Mohan, R. and Ortiz, M., el al. (1992) An analysis of cracks in ductile single crystals—I. Anti-plane shear; Journal of the Mechanics and Physics of Solids; Vol. 40; No. 2; 291-313; 10.1016/S0022-5096(05)80014-6
• Ortiz, M. (1991) Discussion on 'A consistency analysis of a class of concurrent transient implicit/explicit algorithms', by C. Farhat and N. Sobh; Computer Methods in Applied Mechanics and Engineering; Vol. 92; No. 3; 397-398; 10.1016/0045-7825(91)90024-Z
• Ortiz, M. and Quigley, J. J., IV (1991) Adaptive mesh refinement in strain localization problems; Computer Methods in Applied Mechanics and Engineering; Vol. 90; No. 1-3; 781-804; 10.1016/0045-7825(91)90184-8
• Bower, A. F. and Ortiz, M. (1991) A three-dimensional analysis of crack trapping and bridging by tough particles; Journal of the Mechanics and Physics of Solids; Vol. 39; No. 6; 815-858; 10.1016/0022-5096(91)90026-K
• Needleman, A. and Ortiz, M. (1991) Effect of boundaries and interfaces on shear-band localization; International Journal of Solids and Structures; Vol. 28; No. 7; 859-877; 10.1016/0020-7683(91)90005-Z
• Raiser, G. and Clifton, R. J., el al. (1990) A soft-recovery plate impact experiment for studying microcracking in ceramics; Mechanics of Materials; Vol. 10; No. 1-2; 43-58; 10.1016/0167-6636(90)90016-9
• Ortiz, M. and Giannakopoulos, A. E. (1990) Crack propagation in monolithic ceramics under mixed mode loading; International Journal of Fracture; Vol. 44; No. 4; 233-258; 10.1007/BF00036167
• Leroy, Y. and Ortiz, M. (1990) Finite element analysis of transient strain localization phenomena in frictional solids; International Journal for Numerical and Analytical Methods in Geomechanics; Vol. 14; No. 2; 93-124; 10.1002/nag.1610140203
• Moran, B. and Ortiz, M., el al. (1990) Formulation of implicit finite element methods for multiplicative finite deformation plasticity; International Journal for Numerical Methods in Engineering; Vol. 29; No. 3; 483-514; 10.1002/nme.1620290304
• Ortiz, Michael and Blume, Janet A. (1990) Effect of decohesion and sliding on bimaterial crack-tip fields; International Journal of Fracture; Vol. 42; No. 2; 117-128; 10.1007/BF00018381
• Ortiz, M. and Giannakopoulos, A. E. (1990) Mixed mode crack-tip fields in monolithic ceramics; International Journal of Solids and Structures; Vol. 26; No. 7; 705-723; 10.1016/0020-7683(90)90002-D
• Symington, M. and Ortiz, M., el al. (1990) A finite element method for determining the angular variation of asymptotic crack tip fields; International Journal of Fracture; Vol. 45; No. 1; 51-64; 10.1007/BF00012609
• Bower, A. F. and Ortiz, M. (1990) Solution of three-dimensional crack problems by a finite perturbation method; Journal of the Mechanics and Physics of Solids; Vol. 38; No. 4; 443-480; 10.1016/0022-5096(90)90008-R
• Ortiz, M. and Sotelino, E. D., el al. (1989) Efficiency of group implicit concurrent algorithms for transient finite element analysis; International Journal for Numerical Methods in Engineering; Vol. 28; No. 12; 2761-2776; 10.1002/nme.1620281204
• Ortiz, Michael and Martin, John B. (1989) Symmetry-preserving return mapping algorithms and incrementally extremal paths: A unification of concepts; International Journal for Numerical Methods in Engineering; Vol. 28; No. 8; 1839-1853; 10.1002/nme.1620280810
• Nacar, A. and Needleman, A., el al. (1989) A finite element method for analyzing localization in rate dependent solids at finite strains; Computer Methods in Applied Mechanics and Engineering; Vol. 73; No. 3; 235-258; 10.1016/0045-7825(89)90067-4
• Leroy, Y. and Ortiz, M. (1989) Finite element analysis of strain localization in frictional materials; International Journal for Numerical and Analytical Methods in Geomechanics; Vol. 13; No. 1; 53-74; 10.1002/nag.1610130106
• Ortiz, M. and Morris, G. R. (1988) C^0 finite element discretization of Kirchhoff's equations of thin plate bending; International Journal for Numerical Methods in Engineering; Vol. 26; No. 7; 1551-1566; 10.1002/nme.1620260707
• Ortiz, Michael and Nour-Omid, Bahram, el al. (1988) Accuracy of a class of concurrent algorithms for transient finite element analysis; International Journal for Numerical Methods in Engineering; Vol. 26; No. 2; 379-391; 10.1002/nme.1620260207
• Ortiz, M. (1988) Microcrack coalescence and macroscopic crack growth initiation in brittle solids; International Journal of Solids and Structures; Vol. 24; No. 3; 231-250; 10.1016/0020-7683(88)90031-5
• Ortiz, M. and Molinari, A. (1988) Microstructural thermal stresses in ceramic materials; Journal of the Mechanics and Physics of Solids; Vol. 36; No. 4; 385-400; 10.1016/0022-5096(88)90024-5
• Ortiz, M. (1987) An analytical study of the localized failure modes of concrete; Mechanics of Materials; Vol. 6; No. 2; 159-174; 10.1016/0167-6636(87)90006-8
• Ortiz, Michael and Leroy, Yves, el al. (1987) A finite element method for localized failure analysis; Computer Methods in Applied Mechanics and Engineering; Vol. 61; No. 2; 189-214; 10.1016/0045-7825(87)90004-1
• Ortiz, M. (1987) A Continuum Theory of Crack Shielding in Ceramics; Journal of Applied Mechanics; Vol. 54; No. 1; 54-58; 10.1115/1.3172994
• Molinari, A. and Ortiz, M. (1987) Global viscoelastic behavior of heterogeneous thermoelastic materials; International Journal of Solids and Structures; Vol. 23; No. 9; 1285-1300; 10.1016/0020-7683(87)90106-5
• Ortiz, M. (1987) A method of homogenization of elastic media; International Journal of Engineering Science; Vol. 25; No. 7; 923-934; 10.1016/0020-7225(87)90125-X
• Ortiz, Michael and Nour-Omid, Bahram (1986) Unconditionally stable concurrent procedures for transient finite element analysis; Computer Methods in Applied Mechanics and Engineering; Vol. 58; No. 2; 151-174; 10.1016/0045-7825(86)90094-0
• Ortiz, M. and Simo, J. C. (1986) An analysis of a new class of integration algorithms for elastoplastic constitutive relations; International Journal for Numerical Methods in Engineering; Vol. 23; No. 3; 353-366; 10.1002/nme.1620230303
• Ortiz, Michael (1986) A note on energy conservation and stability of nonlinear time-stepping algorithms; Computers and Structures; Vol. 24; No. 1; 167-168; 10.1016/0045-7949(86)90346-9
• Ortiz, M. and Popov, E. P. (1985) Accuracy and stability of integration algorithms for elastoplastic constitutive relations; International Journal for Numerical Methods in Engineering; Vol. 21; No. 9; 1561-1576; 10.1002/nme.1620210902
• Simo, J. C. and Ortiz, M. (1985) A unified approach to finite deformation elastoplastic analysis based on the use of hyperelastic constitutive equations; Computer Methods in Applied Mechanics and Engineering; Vol. 49; No. 2; 221-245; 10.1016/0045-7825(85)90061-1
• Ortiz, Michael (1985) A constitutive theory for the inelastic behavior of concrete; Mechanics of Materials; Vol. 4; No. 1; 67-93; 10.1016/0167-6636(85)90007-9
• Ortiz, M. (1985) A variational formulation for convection-diffusion problems; International Journal of Engineering Science; Vol. 23; No. 7; 717-731; 10.1016/0020-7225(85)90004-7
• Pinsky, Peter M. and Ortiz, Miguel, el al. (1983) Numerical integration of rate constitutive equations in finite deformation analysis; Computer Methods in Applied Mechanics and Engineering; Vol. 40; No. 2; 137-158; 10.1016/0045-7825(83)90087-7
• Ortiz, Miguel and Pinsky, Peter M., el al. (1983) Operator split methods for the numerical solution of the elastoplastic dynamic problem; Computer Methods in Applied Mechanics and Engineering; Vol. 39; No. 2; 137-157; 10.1016/0045-7825(83)90018-X
• Ortiz, Miguel and Popov, Egor P. (1983) Distortional Hardening Rules for Metal Plasticity; Journal of Engineering Mechanics; Vol. 109; No. 4; 1042-1057; 10.1061/(ASCE)0733-9399(1983)109:4(1042)
• Ortiz, Miguel and Pinsky, Peter M., el al. (1983) Unconditionally stable element-by-element algorithms for dynamic problems; Computer Methods in Applied Mechanics and Engineering; Vol. 36; No. 2; 223-239
• Pinsky, Peter M. and Ortiz, Miguel, el al. (1983) Operator split methods in the numerical solution of the finite deformation elastoplastic dynamic problem; Computers and Structures; Vol. 17; No. 3; 345-359; 10.1016/0045-7949(83)90126-8
• Ortiz, M. and Popov, E. P. (1982) A Physical Model for the Inelasticity of Concrete; Proceedings of the Royal Society A: Mathematical, physical, and engineering sciences; Vol. 383; No. 1784; 101-125; 10.1098/rspa.1982.0123
• Ortiz, Miguel and Popov, Egor P. (1982) Plain concrete as a composite material; Mechanics of Materials; Vol. 1; No. 2; 139-150; 10.1016/0167-6636(82)90042-4
• Ortiz, M. and Popov, E. P. (1982) A Statistical Theory of Polycrystalline Plasticity; Proceedings of the Royal Society A: Mathematical, physical, and engineering sciences; Vol. 379; No. 1777; 439-458; 10.1098/rspa.1982.0025