Journal of Central South University of Technology

, Volume 11, Issue 4, pp 440–444 | Cite as

Elasto-plastic constitutive modeling for granular materials

  • Peng Fang-le 
  • Li Jian-zhong Email author


Based on the modified plastic strain energy approach, an elasto-plastic constitutive modeling for sand was proposed. The hardening function between the modified plastic strain energy and a stress parameter was presented, which was independent of stress history and stress paths. The proposed model was related to an isotropically work-hardening and softening, non-associated and elasto-plastic material description. It is shown that the constitutive modeling, the inherent and stress system-induced cross-anisotropic elasticity is also considered. The constitutive model is capable of simulating the effects on the deformation characteristics of stress history and stress path, pressure level and anisotropic strength.

Key words

sand elasto-plastic model hardening function stress-path 

CLC number

TU 45 


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Copyright information

© Central South University 2004

Authors and Affiliations

  1. 1.Department of Geotechnical EngineeringTongji UniversityShanghaiChina
  2. 2.School of Geoscience and Environment EngineeringCentral South UniversityChangshaChina
  3. 3.Department of Civil EngineeringUniversity of TokyoTokyoJapan

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