[ { "id": "https://authors.library.caltech.edu/records/910jq-nhd21", "eprint_id": 106474, "eprint_status": "archive", "datestamp": "2023-08-20 00:16:15", "lastmod": "2024-01-15 18:14:34", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kettenbeil-Christian", "name": { "family": "Kettenbeil", "given": "Christian" } }, { "id": "Lovinger-Zev", "name": { "family": "Lovinger", "given": "Zev" }, "orcid": "0000-0002-9313-9495" }, { "id": "Ravindran-Suraj", "name": { "family": "Ravindran", "given": "Suraj" }, "orcid": "0000-0003-2930-7906" }, { "id": "Mello-M", "name": { "family": "Mello", "given": "M." }, "orcid": "0000-0003-2129-9235" }, { "id": "Ravichandran-G", "name": { "family": "Ravichandran", "given": "G." }, "orcid": "0000-0002-2912-0001" } ] }, "title": "Pressure-shear plate impact experiments at very high pressures", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2020 Author(s). Published by AIP Publishing. \n\nPublished Online: 04 November 2020. \n\nThe authors are grateful for support from the Office of Naval Research (Award No. N00014-16-1-2839) for the\ndevelopment of the PSPI capability at high pressures and the Air Force Office of Scientific Research (Award No.\nFA955012-1-0091) for development of the PDV-HTV interferometer system. The PSPI work on magnesium was\nsupported by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-12-2-0022.\n\n
Published - 12.0001099.pdf
", "abstract": "Recent modifications of a powder gun facility at Caltech have enabled pressure shear plate impact (PSPI) experiments on materials at very high strain rates (>10\u2077 s\u207b\u00b9) and pressures (>20\u2005GPa), that have not been reached before. The high strain rate/pressure regime expands significantly the advantages of this well-studied technique. However, it requires overcoming several challenges including requiring a new approach for analysis of the experimental measurements, to extract the material's strength. At high pressures, standard anvils such as steel and tungsten carbide (WC) do not remain elastic, and their inelastic behavior needs to be accounted for in the analysis. The methodology presented here extracts the strength of the material using a hybrid method, combining numerical simulations to simultaneously match both the normal and transverse free surface velocity measurements. First, the inelastic response of the anvils is measured using symmetric PSPI experiments and a material model is calibrated to best match the experimental measurements. Then, measuring the response including the material of interest in a sandwich PSPI configuration, the anvil's material model is used for the analysis and the extraction of the strength of the material of interest. The methodology is demonstrated for soda-lime glass with WC anvils and pure magnesium with steel anvils. The proposed methodology has the potential to expand the PSPI experiments to higher pressures and strain rates.", "date": "2020-11-04", "date_type": "published", "publisher": "American Institute of Physics", "place_of_pub": "Melville, NY", "pagerange": "Art. No. 120010", "id_number": "CaltechAUTHORS:20201106-094245803", "isbn": "978-0-7354-4000-5", "book_title": "Shock Compression of Condensed Matter - 2019", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20201106-094245803", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Office of Naval Research (ONR)", "grant_number": "N00014-16-1-2839" }, { "agency": "Air Force Office of Scientific Research (AFOSR)", "grant_number": "FA955012-1-0091" }, { "agency": "Army Research Laboratory", "grant_number": "W911NF-12-2-0022" } ] }, "local_group": { "items": [ { "id": "GALCIT" } ] }, "contributors": { "items": [ { "id": "Lane-J-Matthew-D", "name": { "family": "Lane", "given": "J. Matthew D." } }, { "id": "Germann-Timothy-C", "name": { "family": "Germann", "given": "Timothy C." } }, { "id": "Armstrong-Michael-R", "name": { "family": "Armstrong", "given": "Michael R." } }, { "id": "Wixom-Ryan", "name": { "family": "Wixom", "given": "Ryan" } }, { "id": "Damm-Dsvid", "name": { "family": "Damm", "given": "David" } }, { "id": "Zaug-Joseph", "name": { "family": "Zaug", "given": "Joseph" } } ] }, "doi": "10.1063/12.0001099", "primary_object": { "basename": "12.0001099.pdf", "url": "https://authors.library.caltech.edu/records/910jq-nhd21/files/12.0001099.pdf" }, "resource_type": "book_section", "pub_year": "2020", "author_list": "Kettenbeil, Christian; Lovinger, Zev; et el." }, { "id": "https://authors.library.caltech.edu/records/qqajf-72b95", "eprint_id": 106473, "eprint_status": "archive", "datestamp": "2023-08-20 00:16:10", "lastmod": "2024-01-15 18:14:32", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Ravindran-Suraj", "name": { "family": "Ravindran", "given": "Suraj" }, "orcid": "0000-0003-2930-7906" }, { "id": "Lovinger-Zev", "name": { "family": "Lovinger", "given": "Zev" }, "orcid": "0000-0002-9313-9495" }, { "id": "Kettenbeil-Christian", "name": { "family": "Kettenbeil", "given": "Christian" } }, { "id": "Mello-M", "name": { "family": "Mello", "given": "Michael" }, "orcid": "0000-0003-2129-9235" }, { "id": "Ravichandran-G", "name": { "family": "Ravichandran", "given": "Guruswami" }, "orcid": "0000-0002-2912-0001" } ] }, "title": "Pressure-shear plate impact experiments of magnesium at high pressures", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2020 Author(s). Published by AIP Publishing. \n\nPublished Online: 04 November 2020. \n\nThe PSPI work on magnesium was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-12-2-0022, which is gratefully acknowledged. Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-12-2-0022. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.\n\nPublished - 12.0001022.pdf
", "abstract": "Magnesium and its alloys are widely used in the aerospace, automotive and defense industries, taking advantage of its high strength to weight ratio. However, these materials show strong anisotropy with its hexagonal close packed structure and texture. The experimental investigations probing the behavior of these materials at high pressures and strain rates are limited. In this study, experiments are conducted on extruded commercially pure magnesium using pressure shear plate impact (PSPI) experiments. The strength and the behavior of the materials are measured at pressures up to 10.5\u2005GPa and strain rates of 105 s\u22121. The PSPI experiments measure the materials under unique conditions, loading the material simultaneously in two directions. Experiments are conducted at two different pressures where the normal compressive stresses are aligned in one direction and the shear stresses, probing the material strength, are aligned perpendicular to the direction of the normal stress. The effect of pressure on the behavior of these materials under high pressures and strain rates are discussed. It was seen that magnesium exhibit higher strength at higher pressures due to the pressure hardening.", "date": "2020-11-04", "date_type": "published", "publisher": "American Institute of Physics", "place_of_pub": "Melville, NY", "pagerange": "Art. No. 120022", "id_number": "CaltechAUTHORS:20201106-093611155", "isbn": "978-0-7354-4000-5", "book_title": "Shock Compression of Condensed Matter - 2019", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20201106-093611155", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Army Research Laboratory", "grant_number": "W911NF-12-2-0022" } ] }, "local_group": { "items": [ { "id": "GALCIT" } ] }, "contributors": { "items": [ { "id": "Lane-J-Matthew-D", "name": { "family": "Lane", "given": "J. Matthew D." } }, { "id": "Germann-Timothy-C", "name": { "family": "Germann", "given": "Timothy C." } }, { "id": "Armstrong-Michael-R", "name": { "family": "Armstrong", "given": "Michael R." } }, { "id": "Wixom-Ryan", "name": { "family": "Wixom", "given": "Ryan" } }, { "id": "Damm-David", "name": { "family": "Damm", "given": "David" } }, { "id": "Zaug-Joseph", "name": { "family": "Zaug", "given": "Joseph" } } ] }, "doi": "10.1063/12.0001022", "primary_object": { "basename": "12.0001022.pdf", "url": "https://authors.library.caltech.edu/records/qqajf-72b95/files/12.0001022.pdf" }, "resource_type": "book_section", "pub_year": "2020", "author_list": "Ravindran, Suraj; Lovinger, Zev; et el." }, { "id": "https://authors.library.caltech.edu/records/bjn4y-xt143", "eprint_id": 87558, "eprint_status": "archive", "datestamp": "2023-08-19 03:59:55", "lastmod": "2024-01-14 20:18:53", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mello-M", "name": { "family": "Mello", "given": "Michael" }, "orcid": "0000-0003-2129-9235" }, { "id": "Kettenbeil-C", "name": { "family": "Kettenbeil", "given": "Christian" } }, { "id": "Bischann-Moriah", "name": { "family": "Bischann", "given": "Moriah" }, "orcid": "0000-0002-6674-5158" }, { "id": "Ravichandran-G", "name": { "family": "Ravichandran", "given": "Guruswami" }, "orcid": "0000-0002-2912-0001" } ] }, "title": "Heterodyne diffracted beam photonic Doppler velocimeter (DPDV) for measurement of transverse and normal particle velocities in pressure-shear plate impact experiments", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2018 AIP Publishing LLC. \n\nPublished Online: 03 July 2018. \n\nThe authors are grateful for support from the Office of Naval Research (Award No. N00014-16-1-2839) for the development of the PSPI capability at high pressures and the Air Force Office of Scientific Research (Award No. FA9550-12-1-0091) for the development of the heterodyne diffracted beam photonic Doppler velocimeter (DPDV) system.\n\nPublished - 1.5045016.pdf
", "abstract": "Pressure-shear plate impact (PSPI) experiments have traditionally relied on free space beam interferometers such as the transverse displacement interferometer (TDI) and normal displacement interferometer (NDI) or normal velocity interferometer (NVI), to measure transverse and normal velocities at the rear surface of the target plate [1]. Alternative interferometer schemes feature a dual beam VISAR arrangement [2] and a recently developed all fiber-optic TDI-NDI/PDV configuration [3]. Here, we present a heterodyne diffracted beam PDV (DPDV) which interferes a pair of symmetrically diffracted 1st order beams produced by a thin, specular, metallic grating deposited on the rear surface of the target plate. Each beam is collected by a fiber-optic probe and directed to interfere with a reference beam of a slightly increased wavelength to create an upshifted carrier signal frequency at zero particle velocity. Signal frequencies are extracted from the two fringe records using a moving-window DFT algorithm and then linearly combined in a post processing step to decouple the normal and transverse velocities. The 0th order beam can also be interfered in a heterodyne PDV to obtain an additional independent measurement of the normal particle velocity [4]. An overview of the DPDV configuration is presented along with a derivation of the interferometer sensitivities to transverse and normal particle velocities. Results from a normal impact experiment conducted on y-cut \u03b1-quartz are presented as experimental validation.", "date": "2017-07", "date_type": "published", "publisher": "American Institute of Physics", "place_of_pub": "Melville, NY", "pagerange": "Art. No. 160017", "id_number": "CaltechAUTHORS:20180705-135444147", "isbn": "978-0-7354-1693-2", "book_title": "Shock Compression of Condensed Matter - 2017", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180705-135444147", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Office of Naval Research (ONR)", "grant_number": "N00014-16-1-2839" }, { "agency": "Air Force Office of Scientific Research (AFOSR)", "grant_number": "FA9550-12-1-0091" } ] }, "local_group": { "items": [ { "id": "GALCIT" } ] }, "contributors": { "items": [ { "id": "Chau-Ricky", "name": { "family": "Chau", "given": "Ricky" } }, { "id": "Germann-Timothy-C", "name": { "family": "Germann", "given": "Timothy C." } }, { "id": "Lane-Matthew-D", "name": { "family": "Lane", "given": "Matthew D." } }, { "id": "Brown-Eric-N", "name": { "family": "Brown", "given": "Eric N." } }, { "id": "Eggert-Jon-H", "name": { "family": "Eggert", "given": "Jon H." } }, { "id": "Knudson-Marcus-D", "name": { "family": "Knudson", "given": "Marcus D." } } ] }, "doi": "10.1063/1.5045016", "primary_object": { "basename": "1.5045016.pdf", "url": "https://authors.library.caltech.edu/records/bjn4y-xt143/files/1.5045016.pdf" }, "resource_type": "book_section", "pub_year": "2017", "author_list": "Mello, Michael; Kettenbeil, Christian; et el." }, { "id": "https://authors.library.caltech.edu/records/nrj4p-kx470", "eprint_id": 87556, "eprint_status": "archive", "datestamp": "2023-08-19 03:59:45", "lastmod": "2024-01-14 20:18:49", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kettenbeil-Christian", "name": { "family": "Kettenbeil", "given": "Christian" } }, { "id": "Mello-M", "name": { "family": "Mello", "given": "Michael" }, "orcid": "0000-0003-2129-9235" }, { "id": "Jiao-Tong", "name": { "family": "Jiao", "given": "Tong" } }, { "id": "Clifton-Rodney-J", "name": { "family": "Clifton", "given": "Rodney J." } }, { "id": "Ravichandran-G", "name": { "family": "Ravichandran", "given": "Guruswami" }, "orcid": "0000-0002-2912-0001" } ] }, "title": "Pressure-shear plate impact experiment on soda-lime glass at a pressure of 30 GPa and strain rate of 4\u00b710^7 s^(-1)", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2018 AIP Publishing LLC. \n\nPublished Online: 03 July 2018.\n \n\nThe authors are grateful for support from the Office of Naval Research (Award No. N00014-16-1-2839) for the development of the PSPI capability at high pressures and the Air Force Office of Scientific Research (Award No. FA9550-12-1-0091) for development of the PDV-DPDV interferometer system.\n\nPublished - 1.5044828.pdf
", "abstract": "Recent modifications of a powder gun facility at Caltech have enabled pressure-shear plate impact (PSPI) experiments in a regime of pressures and strain rates that were previously unaccessible. A novel heterodyne diffracted beam photonic Doppler velocimeter (DPDV) has also been developed for simultaneous measurement of the normal and transverse particle velocity histories using the \u00b11st order diffracted beams produced by a 400 lines/mm diffraction grating deposited onto the polished rear surface of the impacted target plate. We present and interpret the results of a PSPI experiment conducted on a 5 \u00b5m thick soda-lime glass sample subjected to a normal stress of 30 GPa and a shear strain rate of 4 \u00b7 10^7 s^(\u20131). Transverse particle velocity measurements reveal a peak shear stress level of 1.25 GPa up to a shear strain value of 2.2, followed by a precipitous drop in stress and complete loss of shear strength.", "date": "2017-07", "date_type": "published", "publisher": "American Institute of Physics", "place_of_pub": "Melville, NY", "pagerange": "Art. No. 070019", "id_number": "CaltechAUTHORS:20180705-132900622", "isbn": "978-0-7354-1693-2", "book_title": "Shock Compression of Condensed Matter - 2017", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180705-132900622", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Office of Naval Research (ONR)", "grant_number": "N00014-16-1-2839" }, { "agency": "Air Force Office of Scientific Research (AFOSR)", "grant_number": "FA9550-12-1-0091" } ] }, "local_group": { "items": [ { "id": "GALCIT" } ] }, "contributors": { "items": [ { "id": "Chau-Ricky", "name": { "family": "Chau", "given": "Ricky" } }, { "id": "Germann-Timothy-C", "name": { "family": "Germann", "given": "Timothy C." } }, { "id": "Lane-Matthew-D", "name": { "family": "Lane", "given": "Matthew D." } }, { "id": "Brown-Eric-N", "name": { "family": "Brown", "given": "Eric N." } }, { "id": "Eggert-Jon-H", "name": { "family": "Eggert", "given": "Jon H." } }, { "id": "Knudson-Marcus-D", "name": { "family": "Knudson", "given": "Marcus D." } } ] }, "doi": "10.1063/1.5044828", "primary_object": { "basename": "1.5044828.pdf", "url": "https://authors.library.caltech.edu/records/nrj4p-kx470/files/1.5044828.pdf" }, "resource_type": "book_section", "pub_year": "2017", "author_list": "Kettenbeil, Christian; Mello, Michael; et el." } ]