Skeletal thermal expansion coefficient and thermo-hydro-mechanical constitutive relations for saturated homogeneous porous media

被引：51

作者：

Khalili, N. ^{[1
]}

Uchaipichat, A. ^{[2
]}

Javadi, A. A. ^{[3
]}

机构：

[1] Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia

[2] Vongchavalitkul Univ, Sch Civil Engn, Nakhon Ratchasima 3000, Thailand

[3] Univ Exeter, Sch Engn Comp & Math, Exeter EX4 4QF, Devon, England

来源：

MECHANICS OF MATERIALS | 2010年 / 42卷 / 06期

基金：

澳大利亚研究理事会;

关键词：

Thermal expansion coefficient; Thermo-hydro-mechanical coupling; Saturated porous media; Constitutive modelling; CLAYS; MODEL; BEHAVIOR; SOILS; ROCK;

D O I：

10.1016/j.mechmat.2010.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A rigorous treatment of the thermal expansion coefficient of the solid skeleton for saturated homogeneous porous media is presented. It is shown that the overall thermal expansion coefficient of a porous medium is equal to the thermal expansion coefficient of the solid constituent. It is also shown that the size of the pores and porosity has no influence on the thermal expansion coefficient of a porous medium, and the void ratio is independent of the thermal expansion of the solid skeleton in the elastic region of the material response. In addition, non-isothermal constitutive relations for saturated porous media are presented, and a closed form solution for the heating-induced pore pressure is derived. The validity of the theoretical assertions is examined through a targeted program of laboratory testing as well as data from the literature. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.

引用

页码：593 / 598

页数：6

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