期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 145, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2020.106043
关键词
Notch root stress-strain; Cyclic plasticity; Multiaxial cyclic loading; Approximate methods
资金
- German Federal Ministry for Economic Affairs and Energy (Bundesministerium fur Wirtschaft und Energie, BMWi) [20613N]
In this study, a method is introduced to combine incremental notch approximation methods with a cyclic plasticity model to improve numerical stability and lower computational effort. The proposed solution algorithm is applied to three known incremental notch approximation methods and validated through comparison with finite element calculations of a notched component. The results confirm the effectiveness of the proposed method for both proportional and non-proportional load cases.
In this paper a method is presented to combine incremental notch approximation methods for multiaxial cyclic loading with a cyclic plasticity model. The proposed solution algorithm improves the numerical stability of incremental notch approximation methods. This allows a load path to be discretised with few increments thus the computational effort is lowered. The proposed method is used for three known incremental notch approximation methods, the Neuber method, the ESED method and the Unified Expression. To validate the notch approximations the results are compared against finite element calculations of a notched component. Both proportional and non-proportional load cases are considered.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据