Experimental investigation of an anisotropic hardening model for soft clays

被引：0

作者：

Näätänen, A ^{[1
]}

Lojander, M ^{[1
]}

Wheeler, S ^{[1
]}

Karstunen, M ^{[1
]}

机构：

[1] Helsinki Univ Technol, Dept Civil & Environm Engn, Helsinki, Finland

来源：

PRE-FAILURE DEFORMATION CHARACTERISTICS OF GEOMATERIALS, VOL 1 | 1999年

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A programme of triaxial stress path tests on samples of Otaniemi clay from Finland was undertaken to investigate the validity of an elasto-plastic constitutive model for normally consolidated natural anisotropic soft clays proposed by Wheeler (1997). Within the model the anisotropy of plastic behaviour is represented through a rotational component of hardening. Tests were performed to determine the initial orientation of the yield surface, and to examine the rotation and final orientation of the yield surface following plastic straining along different stress paths. In the light of these tests a modification to the rotational hardening law is proposed.

引用

页码：541 / 548

页数：8

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