Nonlinear cumulative damage model for multiaxial fatigue

被引：10
|
作者：
Shang D.-G. [1 ]
Sun G.-Q. [1 ]
Deng J. [1 ]
Yan C.-L. [1 ]
机构：
[1] College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology
来源：
Frontiers of Mechanical Engineering in China | 2006年 / 1卷 / 3期
基金：
中国国家自然科学基金;
关键词：
Fatigue damage nonproportional loading; Life prediction; Multiaxial fatigue;
D O I：
10.1007/s11465-006-0035-x
中图分类号：
学科分类号：
摘要：
On the basis of the continuum fatigue damage theory, a nonlinear uniaxial fatigue cumulative damage model is first proposed. In order to describe multiaxial fatigue damage characteristics, a nonlinear multiaxial fatigue cumulative damage model is developed based on the critical plane approach. The proposed model can consider the multiaxial fatigue limit, mean hydrostatic pressure and the unseparated characteristic for the damage variables and loading parameters. The recurrence formula of fatigue damage model was derived under multilevel loading, which is used to predict multiaxial fatigue life. The results showed that the proposed nonlinear multiaxial fatigue cumulative damage model is better than Miner's rule. © Higher Education Press 2006.
引用
收藏
页码：265 / 269
页数：4
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