›› 2008, Vol. 29 ›› Issue (1): 269-273.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical implementation of implicit integration algorithm for modified Cam-clay model in ABAQUS

FAN Qing-lai1, 2, LUAN Mao-tian1, YANG Qing1   

  1. 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 2. School of Civil Engineering, Ludong University, Yantai 264025, China
  • Received:2006-04-20 Online:2008-01-10 Published:2013-07-18

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Abstract: The subroutine UMAT special for user-defined material model in the commercial FEM software ABAQUS is utilized and the implicit integration algorithm for the modified Cam-clay model is numerically implemented in ABAQUS. Combined with automatic time increment method for solving incremental finite element equation, the triaxial drained and undrained shear tests of normally consolidated soil and heavily overconsolidated soil are simulated using ABAQUS with the proposed implicit integration algorithm. The robustness and accuracy of the numerical analyses are illustrated. It is shown that the computational results are valid and can well agree with other solutions available.

Key words: modified Cam-clay constitutive model, implicit integration algorithm, UMAT, soil triaxial compression tests

CLC Number: 

  • TU 411
  • 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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