A constitutive model for elastic-plastic deformation under cyclic multiaxial straining

被引：8

作者：

Navarro, A ^{[1
]}

Brown, MW ^{[1
]}

机构：

[1] UNIV SHEFFIELD,DEPT MECH ENGN,SHEFFIELD S1 3JD,S YORKSHIRE,ENGLAND

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1997年 / 20卷 / 05期

关键词：

plastic deformation; yield criteria; metric of stress space; cyclic loading; non-proportional loads; kinematic hardening;

D O I：

10.1111/j.1460-2695.1997.tb00305.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The yield criterion is interpreted as defining the metric of the stress space. Hydrostatic stresses correspond to null geodesics. The plastic strain increment represents a normal projection of the increment undergone by a certain scalar function (hardening function) which depends only on the distance between stress points. This establishes a how rule formally equivalent to the Prandtl-Reuss equations. Consideration of un-loading processes leads to the analysis of equivalent paths and to the definition of a generalized length or separation which provides a new representation of kinematic hardening.

引用

页码：747 / 758

页数：12