Numerical simulation of explosive welding using the material point method

2011 ◽  
Vol 38 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Yuxin Wang ◽  
H.G. Beom ◽  
Ming Sun ◽  
Song Lin
Keyword(s):  
Numerical Simulation ◽  
Explosive Welding ◽  
Material Point Method ◽  
Material Point ◽  
Point Method

Numerical simulation of explosively driven metal by material point method

2011 ◽  
Vol 38 (4) ◽  
pp. 238-246 ◽  
Author(s):  
Y.P. Lian ◽  
X. Zhang ◽  
X. Zhou ◽  
S. Ma ◽  
Y.L. Zhao
Keyword(s):  
Numerical Simulation ◽  
Material Point Method ◽  
Material Point ◽  
Point Method

Numerical Simulation of Underwater Explosion Based on Material Point Method

2012 ◽  
Vol 525-526 ◽  
pp. 109-112
Author(s):  
Wei Dong Chen ◽  
Wen Miao Yang ◽  
Fan Zhang
Keyword(s):  
Numerical Simulation ◽  
Material Point Method ◽  
Underwater Explosion ◽  
Material Point ◽  
Point Method ◽  
Material Interfaces ◽  
Water Region ◽  
Conventional Weapons ◽  
Key Issues ◽  
Deformable Boundaries

Underwater explosive load calculation and numerical simulation is the key issues of the design of underwater conventional weapons and protection of ships and submarine. Underwater explosion involves strong nonliner problems and multi-material coupling problems. The method of underwater explosion calculation base on the material point method (MPM) is presented. The MPM takes the advantages of the both Euler and Lagrangian methods and overcomes the shortcomings of them. The problems in the underwater explosive simulation such as large deformation, moving material interfaces and deformable boundaries can be solved effectively by the MPM. At last, blast wave produced by TNT exploding under similar infinite water region is computed. The calculated results are in good agreement with the results of empirical formula of Cole and SPH. The simulation results show that the MPM is an effective tool for underwater explosion calculation.

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