損傷力学によるスポール損傷の軸対称解析

概要

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Elaboration of the preceding one-dimensional analysis of ductile spall damage based on damage mechanics was discussed by performing axisymmetric two-dimensional analyses. The effects of surface energy due to cavity nucleation and elastic-viscoplastic-damage coupling were incorporated into the energy conservation law. Then, the application of the commercial finite-difference program MANJUSRI-3D for nonlinear dynamic analysis to the axisymmetric two-dimensional problem was discussed. Finally, a plate impact of OFHC copper discs was analyzed by the present method, and the effects of the radial stress wave and surface nucleation energy on the spall damage process were elucidated. The results of analysis were compared with those of one-dimensional analysis and experiments.
一般社団法人日本機械学会の論文
1995-06-25