[
    {
        "id": "authors:ba0ys-ddy38",
        "collection": "authors",
        "collection_id": "ba0ys-ddy38",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150527-133101786",
        "type": "monograph",
        "title": "Torsional Magnetoelastic Waves in a Circular Cylinder",
        "author": [
            {
                "family_name": "Fourney",
                "given_name": "M. E.",
                "clpid": "Fourney-M-E"
            },
            {
                "family_name": "Ellis",
                "given_name": "A. T.",
                "clpid": "Ellis-A-T"
            }
        ],
        "abstract": "In this paper the effect of an electromagnetic field on the propagation of a pure torsional elastic wave in a conducting circular cylinder is investigated. The general field equations and boundary conditions are linearized and the equations of motion for an infinitely long\ncircular rod are obtained for the particular electromagnetic field configurations considered.\n\nThe torsional motion of a solid rod in a steady axial magnetic field with and without a steady electric field is considered. In the first case it is found that a pure torsional mode will not propagate. In the\nsecond case a pure torsional mode will propagate and its frequency equation is obtained. The results for a perfect conductor are compared to a real material.\n\nThe torsional motion of a hollow rod in a steady tangential\nmagnetic field with and without a steady axial electric field is considered. Without the electric field the equations are completely uncoupled\nand the solution is the standard elastic one. The electric field introduces coupling via the induced magnetic field. The equations of motion are obtained, however the actual solutions are not obtained due to the mathematical complexity involved.",
        "publisher": "California Institute of Technology",
        "publication_date": "1963-12"
    },
    {
        "id": "authors:z9jv5-hx210",
        "collection": "authors",
        "collection_id": "z9jv5-hx210",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20141014-144721865",
        "type": "monograph",
        "title": "Additional Exploratory Photoelastic Studies in Stress Wave Propagation",
        "author": [
            {
                "family_name": "Arenz",
                "given_name": "R. J.",
                "clpid": "Arenz-R-J"
            },
            {
                "family_name": "Fourney",
                "given_name": "M. E.",
                "clpid": "Fourney-M-E"
            },
            {
                "family_name": "Parmerter",
                "given_name": "R. R.",
                "clpid": "Parmerter-R-R"
            },
            {
                "family_name": "Williams",
                "given_name": "M. L.",
                "clpid": "Williams-M-L"
            }
        ],
        "abstract": "In a previous report to the sponsor, the design and\ndescription of a high speed framing camera was presented along with several film strips representing the results of a series of qualitative investigations of dynamic stress wave phenomena. These studies included crack propagation, layered media, compressed bars and beams, and cross sections of rocket heads.\n\nAs part of a continuing study in these and related fields,\na final report is submitted covering (1) exploratory experimental studies of shock wave propagation initiated by explosive caps and by nitrogen shock wave impingement, and (2) theoretical studies of a series of dynamic stress wave problems carried out in conjunction with the overall problem.",
        "publisher": "California Institute of Technology",
        "publication_date": "1959-07"
    }
]