A Coupled Elastic-Plastic Damage Model for Rock Material

Hong Jie Chen; Wei Ya Xu; Ru Bin Wang; Wei Wang

doi:10.4028/www.scientific.net/AMM.488-489.799

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 488-489A Coupled Elastic-Plastic Damage Model for Rock...

A Coupled Elastic-Plastic Damage Model for Rock Material

Abstract:

With complex mechanics character and under the action of compression and tension in tri-direction, rock will show coupled plastic-damage mechanism as its basic character. Phenomenological coupled elastic-plastic-damage constitutive model with internal variable is proposed based on thermal mechanics theory, elastic law and macro damage mechanics. Numerical experiments on this model and analyze the model character. The result shows that the coupling model could realize rocks softening behavior brought about by damage and strength enlargement caused by confining pressure increasing.

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Periodical:

Applied Mechanics and Materials (Volumes 488-489)

Pages:

799-802

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.488-489.799

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Online since:

January 2014

Authors:

Hong Jie Chen*, Wei Ya Xu, Ru Bin Wang, Wei Wang

Keywords:

Constitutive Model, Couple, Damage, Elastic-Plastic

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* - Corresponding Author

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