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Transient Dynamic Stress Analysis of Transversely Isotropic Cylinders Subject to Longitudinal Impact  

Oh, Guen (금오공과대학교 기계설계공학과 대학원)
Sim, Woo-Jin (금오공과대학교 기계공학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.20, no.5, 2007 , pp. 521-532 More about this Journal
Abstract
Elastic wave propagations in the semi-infinite transversely isotropic cylinder under various kinds of longitudinal impact loads are analyzed using the axisymmetric finite element method and Houbolt time-integration scheme. For which the finite element program is newly constructed and verified through the comparison of present numerical results with those by other researchers. E-type glass-epoxy composite cylinders with different fiber volume fractions are adopted and studied in detail with dynamic responses of the isotropic cylinder. Three dimensional wave motions are given in graphic form to show the realistic view of the wave propagation. Nondimensionalized dynamic characteristic variables which relate the size of finite element mesh, the time step, and the wave speed are presented for obtaining accurate and stable numerical results.
Keywords
impact load; transversely isotropic cylinder; stress propagation; finite element method;
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