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首页> 外文会议>IUYAM Symposium on Theoretical and Numerical Methods in Continuum Mechanics of Porous Materials, Sep 5-10, 1999, Stuttgart, Germany >Constitutive Description of Fluid-Porous Solid Immiscible Mixtures. Derivation of the Effective Stress-Strain Relation
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Constitutive Description of Fluid-Porous Solid Immiscible Mixtures. Derivation of the Effective Stress-Strain Relation

机译：多孔性固体不混溶混合物的组成描述。有效应力-应变关系的推导

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摘要

The effective stress concept for elastic porous solid filled with barotropic fluid is discussed. The saturated porous solid is considered as the immiscible mixture consisting of two physically identifiable components. The derived constitutive stress equations (in general non-linear) for each component are used to formulate the effective stress expression. In particular, the linear relation between incremental stresses and the porous solid strains in the vicinity of an initial stress state, the effective stress-strain relation and expression for the effective stress coefficient are derived.
机译：讨论了充满正压流体的弹性多孔固体的有效应力概念。饱和的多孔固体被认为是由两种物理上可识别的成分组成的不混溶混合物。每个组件导出的本构应力方程（通常是非线性的）用于公式化有效应力表达式。特别地，推导了初始应力状态附近的增量应力与多孔固体应变之间的线性关系，有效应力-应变关系以及有效应力系数的表达式。

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