Applied Mathematics and Mechanics (English Edition) ›› 2001, Vol. 22 ›› Issue (9): 1028-1034.

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CONSTITUTIVE THEORY OF PLASTICITY COUPLED WITH ORTHOTROPIC DAMAGE FOR GEOMATERIALS

SHEN Xin-pu1, Zenon Mroz2, XU Bing-ye3   

  1. 1. Department of Architectural Engineering, Shenyang University of Technology, Shenyang 110023, P R China;
    2. IFTR, Polish Academy of Sciences, Warsaw 00-049, Poland;
    3. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P R China
  • Received:2000-08-19 Revised:2001-04-08 Online:2001-09-18 Published:2001-09-18
  • Supported by:

    Foundation of the Ministry of State Education of China(1999363);This paper was partly puiblished at the Inter Conf on Microstru Mech Prop New Engng Mater,Sept,20-23,1999

Abstract: Constitutive theory of plasticity coupled with orthotropic damage for geomaterials was established in the framework of irreversible thermodynamics. Prime results include: 1) evolution laws are presented for coupled evolution of plasticity and orthotropic damage; 2) the orthotropic damage tensor is introduced into the Mohr-Coulomb criterion through homogenization. Both the degradation of shear strength and degradation of friction angle caused by damage are included in this model. The dilatancy is calculated with the so-called damage strain.

2010 MSC Number: 

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