Finite element computation and analysis on complex contact boundary

HOU Lei; LI Han-ling; LIN De-zhi; ZHANG Min; Daglish GEORGE

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Article Navigation > Journal of East China Normal University (Natural Sciences) > 2012 > (4): 1-11,26

HOU Lei, LI Han-ling, LIN De-zhi, ZHANG Min, Daglish GEORGE, . Finite element computation and analysis on complex contact boundary[J]. Journal of East China Normal University (Natural Sciences), 2012, (4): 1-11,26.

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HOU Lei, LI Han-ling, LIN De-zhi, ZHANG Min, Daglish GEORGE, . Finite element computation and analysis on complex contact boundary[J]. Journal of East China Normal University (Natural Sciences), 2012, (4): 1-11,26.

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Finite element computation and analysis on complex contact boundary

1.
Department of Mathematic, Shanghai University, Shanghai 200444, China;
2.
Computational Sciences, E-Institute of Shanghai Universities at SJTU, Shanghai 200030, China

Received Date: 2011-09-01
Rev Recd Date: 2011-12-01
Publish Date: 2012-07-25

Abstract

Abstract

The safety test of transportation devices, including impact test and plastoelastic deformation, is simulated both in laboratory and by computer. Contact deformation algorithm is an international standard method to simulate the skid control on complex 3-D areas. In this paper, coupled non-Newtonian fluid equations with initial boundary value are used to solve the 3-D layer structure. A finite element method (FEM) based on the variation principle is used to solve the perturbation problem, and data mining is processed by high performance software. According to the embedding principle, a stratified element division is processed, and the complex boundary is divided into several mutual connected yet not overlapped hexahedral and square elements. After building a FEM model of both macro scale and micro scale, varying curves of parameters including energy and velocity can be obtained. On the other hand, the boundary layer theory of asymptotic perturbation method is also a way to study the complex boundary problem. The characteristic function space gained can be used both to optimize the primary function of FEM, and to establish a new asymptotic method to solve the nonlinear eigen problem. It can be used to estimate the specific parameters of materials as well. The stochastic analysis of artificial boundary conditions is then used to study the resulting data.
- complex contact boundary,
- moving boundary conditions,
- coupled multi-layer structure

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References

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