A Numerical Method for Dynamic Responses of Aviation Aluminum Alloy Plates Under Blast Loads

XIE Jiang; LI Han; ZHOU Shu-ting; ZHENG Jin-guo; FENG Zhen-yu

doi:10.21656/1000-0887.370252

Volume 38 Issue 4

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Article Navigation > Applied Mathematics and Mechanics > 2017 > 38(4): 410-420

XIE Jiang, LI Han, ZHOU Shu-ting, ZHENG Jin-guo, FENG Zhen-yu. A Numerical Method for Dynamic Responses of Aviation Aluminum Alloy Plates Under Blast Loads[J]. Applied Mathematics and Mechanics, 2017, 38(4): 410-420. doi: 10.21656/1000-0887.370252

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A Numerical Method for Dynamic Responses of Aviation Aluminum Alloy Plates Under Blast Loads

doi: 10.21656/1000-0887.370252

Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance,Civil Aviation University of China, Tianjin 300300, P.R.China

Received Date: 2016-08-17
Rev Recd Date: 2016-10-11
Publish Date: 2017-04-15

Abstract

Abstract

In order to explore the numerical analysis method suitable for dynamic responses of aviation aluminum alloy plates under explosive impact loads, numerical simulation of the aluminum alloy plate under explosion was carried out with the LSDYNA explicit dynamic analysis software. Influences of different advection steps of the arbitrary LagrangianEulerian method (ALE), the fluidstructure coupling mode, the number of coupling points, the mesh size and the finite element type on the numerical results were detailedly studied. Comparisons between the numerical results and the test results show that the dynamic responses of the aluminum alloy plate under explosive impact loading can be calculated accurately with the van Leer+HIS advection step, the penalty coupling method, 3 coupling points, a ratio of 2∶1 between the structure mesh size and the air mesh size, and the Shell163 element. Simultaneously, the calculation efficiency can be improved and computation time saved.
- explosion,
- numerical simulation,
- arbitrary Lagrangian-Eulerian method,
- aluminum alloy plate,
- fluid-structure interaction

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References(16)

References

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