縦衝撃を受ける円柱の動的挙動 : 脆性材料の場合の衝撃破壊機構

概要

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Two-dimensional stress waves in a variety of elastic circular cylinder are analyzed numerically, when an axisymmetric impulsive load is applied to the end face of the cylinders. It is clearly demonstrated that, when the pulse length of the applied impulsive load is sufficiently short such as when a charge is detonated on the end face of the cylinder, stress distribution fluctuates violently with time, and so local parts are apt to be formed where a tensile stress arises concentrically. By examining a distribution of the maximum tensile stress arised in the cylinder, the generation of the peculiar fracture patterns to under impulsive loadings for a brittle body can be explained fairly well, whose patterns were summarized originally by Kolsky and Shearman.
一般社団法人日本機械学会の論文
1987-07-25