Simulation of explosion and shock involving multiple materials based on the material point method

WANG Yu-xin; CHEN Zhen; SUN Ming

doi:10.11883/1001-1455(2008)02-0154-07

Volume 28 Issue 2

Sep. 2014

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WANG Yu-xin, CHEN Zhen, SUN Ming. Simulation of explosion and shock involving multiple materials based on the material point method[J]. Explosion And Shock Waves, 2008, 28(2): 154-160. doi: 10.11883/1001-1455(2008)02-0154-07

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WANG Yu-xin, CHEN Zhen, SUN Ming. Simulation of explosion and shock involving multiple materials based on the material point method[J]. Explosion And Shock Waves, 2008, 28(2): 154-160. doi: 10.11883/1001-1455(2008)02-0154-07

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Simulation of explosion and shock involving multiple materials based on the material point method

doi: 10.11883/1001-1455(2008)02-0154-07

1.
Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;
2.
Department of Civil and Environmental Engineering, University of Missouri, Columbia MO 65211-2200, USA

Publish Date: 2008-03-25

Abstract

Abstract

The meshless material point method (MPM) is introduced to solve the problems that when a bomb is exploded near the building, an analysis on the combining effects of blast wave and fragments on the concrete wall involves the multi-physics field calculations and multi-material coupling. The explosion field, bomb fragments and deformation and fracture of the concrete wall resulted from explosion of bombs with and without a metal case are numerically simulated by using the characteristics of the MPM that a moving boundary or material interface can be easily traced, and the coupling conditions of multiple materials are automatically satisfied. Calculated results show that the meshless MPM is useful for computation of multi-material explosion effect.
- mechanics of explosion,
- explosion effect,
- material point method,
- multiple materials,
- meshless method

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