Description of plastic deformation of structural materials in triaxial loading

被引：0
|
作者：
Lagzdins, A. [1 ]
Zilaucs, A. [1 ]
机构：
[1] Latvian State Univ, Inst Polymer Mech, LV-1006 Riga, Latvia
来源：
MECHANICS OF COMPOSITE MATERIALS | 2008年 / 44卷 / 02期
关键词：
nonassociated plasticity; loading function; plastic potential; concrete; wrapping; compression;
D O I：
10.1007/s11029-008-9005-1
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A model of nonassociated plasticity is put forward for initially isotropic materials deforming with residual changes in volume under the action of triaxial normal stresses. The model is based on novel plastic loading and plastic potential functions, which define closed, convex, every where smooth surfaces in the 6D space of symmetric second-rank stress tensors. By way of example, the plastic deformation of a cylindrical concrete specimen wrapped with a CFRP tape and loaded in axial compression is described.
引用
收藏
页码：121 / 130
页数：10
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