›› 2010, Vol. 31 ›› Issue (8): 2643-2647.

• Numerical Analysis • Previous Articles     Next Articles

Finite-element free Galerkin coupling method for sand liquefaction-induced deformation

JIE Ying 1, 2, TANG Xiao-wei 2, LUAN Mao-tian 2   

  1. 1. School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao, Hebei 066004, China; 2. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
  • Received:2008-09-24 Online:2010-08-10 Published:2010-08-30

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Abstract:

Through the constructing of the finite element-element free Galerkin coupling method of Biot’s two phase mixture theory in u-p formulation, the numerical simulation for liquefaction problem is carried out. The cyclic elastoplastic constitutive model and updated Lagrange formulation are jointly adopted to establish the governing equations. The coupling method can avoid computation break caused by element distortion when using finite element method and save computation time. A numerical example shows that the method for liquefaction analysis is feasible and effective.

Key words: finite elements, elements free method, coupling, Galerkin method

CLC Number: 

  • TU 024
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