Work input for unsaturated elastic porous media

William G. Gray; Bernhard A. Schrefler; Francesco Pesavento

doi:10.1016/j.jmps.2010.02.005

Work input for unsaturated elastic porous media

William G. Gray, Bernhard A. Schrefler, Francesco Pesavento

Houston Methodist

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The work input for unsaturated elastic porous media is investigated based on averaged conservation equations for phases, interfaces, and common curves. In this analysis, the interfaces between the air-water interfaces are allowed to move and the surface tension appears explicitly in the analysis. Expressions for the work of the solid alone and for the medium are obtained. Conditions under which the result obtained here for the medium reduces to a more traditional expression are indicated. In this analysis, a form of the solid phase stress tensor, recently derived within the framework of thermodynamically constrained averaging theory for phase and interface properties, is used.

Original language	English (US)
Pages (from-to)	752-765
Number of pages	14
Journal	Journal of the Mechanics and Physics of Solids
Volume	58
Issue number	5
DOIs	https://doi.org/10.1016/j.jmps.2010.02.005
State	Published - May 2010

Keywords

Elasticity
Hill-Mandel condition
Work input

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
Condensed Matter Physics

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10.1016/j.jmps.2010.02.005

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AU - Schrefler, Bernhard A.

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AB - The work input for unsaturated elastic porous media is investigated based on averaged conservation equations for phases, interfaces, and common curves. In this analysis, the interfaces between the air-water interfaces are allowed to move and the surface tension appears explicitly in the analysis. Expressions for the work of the solid alone and for the medium are obtained. Conditions under which the result obtained here for the medium reduces to a more traditional expression are indicated. In this analysis, a form of the solid phase stress tensor, recently derived within the framework of thermodynamically constrained averaging theory for phase and interface properties, is used.

KW - Elasticity

KW - Hill-Mandel condition

KW - Work input

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Work input for unsaturated elastic porous media

Abstract

Keywords

ASJC Scopus subject areas

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