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Multi-damage life assessment under continuous damage mechanics

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Materials in the service process will produce multidamage, such as brittle damage, creep damage and fatigue damage. Traditional linear superposition principle, considering that different kinds of damages are independent, is not always accurate. In order to evaluate reliability of the material life under the multidamage, a new method is presented in the paper. The method is based on continuous damage mechanics(CDM) framework, considering effects on grain size and void damage, proposing creep and fatigue continuous damage model. Then the BP neural network is constructed to train creep-fatigue damage and finally validated the rationality of the model. The method can accurately evaluate the reliability life, which provides a new way to study multi-damage of the material failure behavior under CDM framework based on BP neural network.

源语言英语
主期刊名Proceedings of 2016 Prognostics and System Health Management Conference, PHM-Chengdu 2016
编辑Qiang Miao, Zhaojun Li, Ming J. Zuo, Liudong Xing, Zhigang Tian
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781509027781
DOI
出版状态已出版 - 16 1月 2017
活动7th IEEE Prognostics and System Health Management Conference, PHM-Chengdu 2016 - Chengdu, Sichuan, 中国
期限: 19 10月 201621 10月 2016

出版系列

姓名Proceedings of 2016 Prognostics and System Health Management Conference, PHM-Chengdu 2016

会议

会议7th IEEE Prognostics and System Health Management Conference, PHM-Chengdu 2016
国家/地区中国
Chengdu, Sichuan
时期19/10/1621/10/16

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