Non-linear model of small-strain behaviour of soils
Non-linear model of small-strain behaviour of soils
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DOI：
10.1680/geot.1998.48.2.217
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发表时间：
1998-04
期刊：
影响因子：
5.8
通讯作者：
A. Puzrin;J. Burland
中科院分区：
文献类型：
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作者：
A. Puzrin;J. Burland
本文介绍了一种发展预测土的广义小应变特性的本构模型的一般方法。该模型结合了非线性应力-应变行为，应力路径依赖性和一致的小应变区（SSR）的定义。基于这种一般的方法，提出了一个简单的模型，其中包括交叉各向同性弹性内的线弹性区域（LER）和椭圆边界的LER和SSR。该模型导致独特的归一化应力-应变行为的原状Bothkennar粘土的应力探头方向在三轴应力空间的完整范围。比较证实了归一化体积和偏应力-应变行为的唯一性。该模型可方便地应用于二维和三维边值问题的数值求解。第二篇文章阐述了一个一般概念，即关于“一个宪法模式”的一般概念，该模式Au point“pourdlre le comportement general des s.
The paper describes a general approach to the development of a constitutive model for predict-ing the generalized small-strain behaviour of soils. The model incorporates non-linear stress— strain behaviour, stress-path dependence and a consistent definition of the small-strain region (SSR). Based on this general approach, a simple model is proposed which incorporates crossanisotropic elasticity within the linear elastic region (LER) and elliptical boundaries for the LER and SSR. The model leads to unique normalized stress—strain behaviour of undisturbed Bothkennar clay for the complete range of stress probe directions in triaxial stress space. The comparison confirms the uniqueness of the normalized volumetric and deviatoric stress— strain behaviour. The model can easily be incor-porated into numerical procedures for solving two- and three-dimensional boundary value problems. ĺarticle decrit une conception generale de la mise au point ´un modele constitutif pour predlre le comportement general des s...