Development of a constitutive model for biaxial low-cycle fatigue

被引：3

作者：

Borodii, MV

Kucher, NK

Strizhalo, VA

机构：

[1] Dept. Strength Mat. Struct. E., Institute for Problems of Strength, Natl. Academy of Sciences of Ukraine, Kiev 252014

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1996年 / 19卷 / 10期

关键词：

biaxial fatigue; non-proportional loading; endochronic plasticity theory; experimental/theoretical comparisons;

D O I：

10.1111/j.1460-2695.1996.tb00941.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A version of the endochronic theory of plasticity for the modelling of nonproportional cyclic loading has been developed. To describe an additional hardening of a material a new engineering method for defining a nonproportionality parameter is proposed for a wide class of cyclic strain paths with a prescribed maximum range of plastic or total strains. This parameter makes it possible to establish an unambiguous linear dependence between the cyclic strain path shape and the stress level in a stabilized state. Conjugation conditions have been formulated to describe complex histories of nonproportional cyclic loading. The results of the modelling are shown to be in fair agreement with the experimental data.

引用

页码：1169 / 1179

页数：11

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