Applied Mathematics and Mechanics

, Volume 23, Issue 9, pp 1097–1104 | Cite as

A fracture-energy-based elasto-softening-plastic constitutive model for joints of geomaterials

  • Shen Xin-pu
  • Shen Guo-xiao


On the basis of plasticity and fracture mechanics for quasi-brittle materials, this article presented a constitutive model for gradual softening behavior of joints of geomaterials. Corresponding numerical tests are carried out at the local level. Characteristics of the model proposed are 1) plastic softening and dilatancy behavior are directly related to the fracture process of joint, and much less material and model parameters are required compared with those proposed by references; 2) the process of decohesion coupled with frictional sliding at both micro-scale and macro-scale is described.

Key words

interface crack quasi-brittle fracture joint element dilatancy non-associated plasticity 

CLC number



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Copyright information

© Editorial Committee of Applied Mathematics and Mechanics 1980

Authors and Affiliations

  • Shen Xin-pu
    • 1
  • Shen Guo-xiao
    • 2
  1. 1.Department of MechanicsNortheastern UniversityShenyangP R China
  2. 2.Department of Applied SciencesTaiyuan Institute of Heavy MachineTaiyuanP R China

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