The Development and Implementation of Improved Duncan-Chang Constitutive Model in ABAQUS

Zhi Ping Dai; Cheng Zhao; Chun Feng Zhao

doi:10.4028/www.scientific.net/AMM.99-100.965

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 99-100The Development and Implementation of Improved...

The Development and Implementation of Improved Duncan-Chang Constitutive Model in ABAQUS

Abstract:

As it ignorance the effect of intermediate principal stress, traditional Duncan - Chang model has limitation when applied into geotechnical engineering. It was improved through incorporating the effect of intermediate principal stress based on unified strength theory. Under the help of customized modification platform in ABAQUS, the applicability and stability of the improved model and the reliability of subroutine were validated through simulation of several examples. The results show the improved model can better reflect the deformation behavior of soil through taking the influence of intermediate principal stress into consideration. The improved model in paper can be applied into dense sand, fine sand and clay.

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Periodical:

Applied Mechanics and Materials (Volumes 99-100)

Pages:

965-971

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.99-100.965

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Online since:

September 2011

Authors:

Zhi Ping Dai, Cheng Zhao, Chun Feng Zhao

Keywords:

ABAQUS, Improved Duncan-Chang Constitutive Model, Intermediate Principal Stress, Secondary Development

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