衝撃波とち密なフォーム状弾性体との一次元干渉 : 第2報,解析および実験との比較 (<小特集>衝撃波現象とその工学的応用)

概要

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Numerical simulations of the one dimensional unsteady motion of low-porosity foam, induced by the shock wave are studied. Interactive motions of the gas and the foam are analyzed using the Lagrangian coordinates. An elastic model for a low-porosity foam is assumed to be a simple non linear elastic body following the measured stress-strain relation of foam. One end of the foam in the axial x-direction is fixed to the end wall of the shock tube, and the other end interacts with the shock wave. In the case of uni-axial stress loading, the movement of the body is free to expand in both the y-and z-directions. In the case of uni-axial strain loading, there is no movement of the foam in the y-and z-directions. Results for the foam are compared with those for the rubber. Very good agreements are found between numerical and experimental results in the case of rubber, while fairly good agreements in the case of polyurethane foam.
一般社団法人日本機械学会の論文
1994-07-25