Three-Parameter Damage Evolution for Quasi-Brittle Solids

Ji Zhang

doi:10.4028/www.scientific.net/AMM.580-583.3119

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Three-Parameter Damage Evolution for Quasi-Brittle...

Three-Parameter Damage Evolution for Quasi-Brittle Solids

Abstract:

This paper aims to investigate the performance of a new three-parameter damage mechanics model which describes three basic damage mechanisms of quasi-brittle solids: tension, shear, and hydrostatic compression. The stress is first decomposed into its positive part and negative part, and then the latter is further decomposed into its deviatoric part and hydrostatic part, whereby a three-parameter damage description is formulated. Through matrix representation of the tensor formulation, specific forms of the three-parameter damage theory are illustrated in various stress states. It is found that the proposed framework of three-parameter damage theory can inherit the existing two-parameter models and extend them to a broader scope of application.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

3119-3124

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.3119

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Online since:

July 2014

Authors:

Ji Zhang

Keywords:

Brittle Solid, Damage Evolution, Deviatoric Stress, Hydrostatic Stress, Triaxial Compression

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