The study of claddings&rsquo; response subjected to underwater explosion via homogenization method

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (3) : 93-98.

The study of claddings’ response subjected to underwater explosion via homogenization method

HU Xianhe, CHEN Yong, JIN Zhe-yu, YIN Cai-yu, HUA Hong-xing

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Abstract

A high computation efficiency homogenization method is proposed, aiming at improving the problem of time-consuming and big difficulties during the calculation of nonlinear multi-hole cladding’s underwater explosion response. An effective two-dimensional model made of water, claddings and steel plate is built. After making curves of pressure, velocity, reaction force through simulation calculation, we find it is validity to use equivalent Yong’s modulus. Then the homogenization method is used to study multi-hole claddings, making comparisons of FEM results of different porosity and shock factor. All these fully demonstrate the rationality of homogenization method.

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homogenization / finite element method / shock and explosion

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HU Xianhe, CHEN Yong, JIN Zhe-yu, YIN Cai-yu, HUA Hong-xing . The study of claddings’ response subjected to underwater explosion via homogenization method[J]. Journal of Vibration and Shock, 2016, 35(3): 93-98

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