A Creep-Damage Constitutive Model for Sandstone

Wei Wang; Jun Lv; Hai Cheng Wang

doi:10.4028/www.scientific.net/AMM.170-173.289

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173A Creep-Damage Constitutive Model for Sandstone

A Creep-Damage Constitutive Model for Sandstone

Abstract:

Based on the results obtained by the triaxial creep test, a creep-damage constitutive model for sandstone is presented by using the damage theory and by introducing the concept of “the whole process of damage” into Burgers creep model. The parameters of the model are determined by fitting the creep test data. The result shows that the proposed model can not only describe efficiently the variation of decay and steady creep under relatively low stress condition, but also give a satisfied representation of damage behavior in accelerated creep stage.

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Periodical:

Applied Mechanics and Materials (Volumes 170-173)

Pages:

289-294

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.170-173.289

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Online since:

May 2012

Authors:

Wei Wang, Jun Lv, Hai Cheng Wang

Keywords:

Constitutive Model, Creep, Damage, Sandstone

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