›› 2007, Vol. 28 ›› Issue (S1): 124-.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A revised modified Cambridge model based on the theory of rotational kinematic hardening

KONG Liang1, HUI Zhi-xin1, WANG Yan-chang1,2   

  1. 1. Solid Mechanics Institute, Ningxia University, Yinchuan 750021, China; 2. President’s Office, Ningxia University, Yinchuan 750021, China
  • Received:2007-05-31 Online:2007-10-25 Published:2014-03-28

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Abstract: The modified Cambridge model is one of the most popular elastoplastic models for soil, but it can not simulate the soil constitutive behavior during large stress reversals and the stress induced anisotropy as well. In this paper, the rotational kinematic hardening theory is incorporated into modified Cambridge model, and the rotational hardening mechanism of ellipse yield surface is presented. Then, a new modified Cambridge model is extended from isotropic to rotational kinematic hardening in a simple manner which avoids the introduction of complicated rules and new materials parameters. The new model not only preserves the behavior of the isotropic hardening model under monotonic loading conditions, but also can reflects the soil constitutive behavior during large stress reversals and the stress induced anisotropy, and its validation is given at last.

Key words: rotational kinematic hardening, modified Cambridge model, stress reversal, anisotropic, constitutive model, yield surface

CLC Number: 

  • TU 43
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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