Fatigue life prediction under variable loading based on a new non-linear continuum damage mechanics model

被引：148

作者：

Dattoma, V ^{[1
]}

Giancane, S ^{[1
]}

Nobile, R ^{[1
]}

Panella, FW ^{[1
]}

机构：

[1] Univ Lecce, Dept Ingn Innovaz, I-73100 Lecce, Italy

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2006年 / 28卷 / 02期

关键词：

non-linear accumulation of damage; fatigue life; continuum damage mechanics;

D O I：

10.1016/j.ijfatigue.2005.05.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This work presents a non-linear continuum damage mechanics model based on general thermodynamic framework developed by Lemaitre and Chaboche. The proposed model has been formulated to take into account the material damage evolution at different load levels and it allows the effect of the loading sequence to be included; by means of a recurrence formula derived for multilevel loading, complex load sequences can be considered. The fatigue test data for a hardened and tempered steel have been used to verify the model proposed in this paper and the results show a good agreement to predict fatigue life under complex load sequences. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：89 / 95

页数：7

共 18 条

[1] CONTINUOUS DAMAGE MECHANICS - A TOOL TO DESCRIBE PHENOMENA BEFORE CRACK INITIATION [J].