Hardening behaviour law versus rigid perfectly plastic law: application to a cold forging tool steel

被引：11

作者：

Verleene, A ^{[1
]}

Dubar, L ^{[1
]}

Dubois, A ^{[1
]}

Dubar, M ^{[1
]}

Oudin, J ^{[1
]}

机构：

[1] Univ Valenciennes & Hainaut Cambresis, CNRS, UMR 8530,MECAMAT, Ind & Human Automat Control & Mech Engn Lab, F-59313 Valenciennes 9, France

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2002年 / 18卷 / 08期

关键词：

tool steel; behaviour law; Brinell indentation test; finite element analysis; elasto-plasticity;

D O I：

10.1016/S0749-6419(01)00021-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A hardening stress strain law is determined for the AISI M2 cold forging tool steel. The experimental part is based on the Brinell indentation test. The numerical part consists in the simulation of the Brinell indentation test under increasing load cases. For each load case, parameters of the behaviour law are adjusted in order to make the numerical diameter of the Brinell test converging towards the experimental one. Results are compared with a rigid perfectly plastic behaviour law usually used for this kind of steel. Then, a deformable sphere is used and the results are compared with a rigid one. It is shown that a hardening behaviour law is more accurate than a rigid perfectly plastic one for the study of wear and tools damage since it is more representative of the reality. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：997 / 1011

页数：15

共 12 条

[1] A study on the prediction of fatigue life in an axi-symmetric extrusion die [J].