Damage Induced Anisotropy of Elastic Wave Velocities in Geomaterials under Uniaxial Compression: Numerical Investigation by a Quasi-Micromechanical Approach

Truong Son Bui; Duc Phi Do; Dashnor Hoxha

doi:10.4028/www.scientific.net/AMM.390.562

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 390Damage Induced Anisotropy of Elastic Wave...

Damage Induced Anisotropy of Elastic Wave Velocities in Geomaterials under Uniaxial Compression: Numerical Investigation by a Quasi-Micromechanical Approach

Abstract:

Damage induced anisotropy of elastic wave velocities in geomaterials under uniaxial compression is studied in this work by using a micromechanical approach. For that a two-steps homogenization technique is considered by accounting for the nucleation and growth of micro-cracks as well as the debonding effect of inhomogeneities’ interface. Some phenomenological functions are adjusted to describe the evolution of these mechanisms during loading. Through some numerical applications this method known as quasi-micromechanical approach shows their flexibility to predict damage in materials.

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Periodical:

Applied Mechanics and Materials (Volume 390)

Pages:

562-566

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.390.562

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Online since:

August 2013

Authors:

Truong Son Bui, Duc Phi Do, Dashnor Hoxha

Keywords:

Anisotropy, Crack, Debonding Interface, Geomaterials, Ultrasonic Velocities

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