›› 2010, Vol. 31 ›› Issue (1): 20-26.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Double scalar variables damage model and its application to Biot’s consolidation FEM

XUE Xin-hua，ZHANG Wo-huaXUE Xin-hua，ZHANG Wo-hua   

  1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2008-05-06 Online:2010-01-10 Published:2010-02-02

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Abstract:

The theory of isotropic double scalar damage variables was presented and developed based on the research work done by the predecessors firstly. Then, the elastic damage evolution equation described by the double scalar damage variables was deduced; and the finite element program for the coupled seepage and damage was written using the computer language Fortran90 based on the modified Biot’s theory. Finally, a simple roadbed foundation model was analyzed using the computer program written personally; and the typical node’s settlement, pore pressure, damage variables were analyzed and discussed. The results show that the double scalar damage variables model is more reasonable than the single scalar damage variable model in describing the constitutive relation of soils.

Key words: double scalar damage variables, Biot’s consolidation theory, elastic energy function, damage evolution equation

CLC Number: 

  • TU 432
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