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论文类型：期刊论文

发表时间：2011-01-01

发表刊物：INTERNATIONAL JOURNAL OF IMPACT ENGINEERING

收录刊物：SCIE、EI

卷号：38

期号：1

页面范围：51-60

ISSN号：0734-743X

关键字：Explosive welding; Explosion impact; Slip detonation; Material point method

摘要：Explosive welding involves detonation of explosive, interactions of fluid-structure and plastic deformations of metal plates at the instant of the explosion. Conventional mesh-based methods such as the finite element method (FEM) and finite difference method (FDM), are limited in simulation of the explosive welding when mesh distortion and interaction of different materials occur. In order to describe process of the explosive welding and accurately predict physical parameters for the explosive welding, numerical simulation of the explosive welding which involves multi-physical phenomenon is performed by using material point method (MPM). Not only can major physical phenomena of explosion impact be well captured, but also some important technical parameters for the explosive welding can be attained based on the MPM simulation. Through the comparison with the experimental results, it is shown that the MPM is a robust tool in simulation of the explosive welding. (C) 2010 Elsevier Ltd. All rights reserved.