非等效累积损伤模型

doi:10.3969/j.issn.1000-1565.2022.06.004

河北大学学报(自然科学版) ›› 2022, Vol. 42 ›› Issue (6): 580-588.DOI: 10.3969/j.issn.1000-1565.2022.06.004

非等效累积损伤模型

孙振铎^1.2,吕松峰¹,侯东勃³,张明洋¹

收稿日期:2021-12-15 发布日期:2023-02-22
作者简介:孙振铎(1980—),男,河北新乐人,河北大学副教授,博士,主要从事金属结构及材料的超高周疲劳失效研究.
E-mail:bdsunzhenduo@126.com
基金资助:
河北省自然科学基金资助项目(E2018201265);河北省高等学校科学技术研究项目(QN2017307)

Nonequivalent cumulative damage model

SUN Zhenduo^1,2, LYU Songfeng¹, HOU Dongbo³, ZHANG Mingyang¹

1.School of Quality and Technical Supervision, Hebei University, Baoding 071002, China; 2.Hebei Technology Innovation Center for Lightweight of New Energy Vehicle Power System, Hebei University, Baoding 071000, China; 3.Beijing Institute of Remote Sensing Equipment, Beijing 100854, China

Received:2021-12-15 Published:2023-02-22

摘要/Abstract

摘要： 开展了45号钢在变幅加载下的疲劳试验,基于试验结果,对Miner模型、Manson-Halford模型、Corten-Dolan模型和叶笃毅模型的预测精度进行对比分析,并基于非等效累积损伤原则,以Miner模型和Manson-Halford模型为基础分别构建了2种新的非等效累积损伤模型.结果表明:4种模型中,Manson-Halford模型的预测精度好于其余3种模型,而本文构建的新的非等效累积损伤模型的预测结果要优于Manson-Halford模型,并且其计算模式较为简便,适宜工程应用.

关键词: 疲劳, 非等效损伤, 累积损伤模型

Abstract: The fatigue test of No.45 steel under variable amplitude loading was carried out. Based on the experimental results, the prediction accuracy of Miner model, Manson-Halford model, Cortan-Dolan model and YE Duyi model is compared and analyzed. Based on Miner model and Manson-Halford model, two new nonequivalent cumulative damage models are constructed respectively with the principle of nonequivalent cumulative damage. The results show that, the prediction accuracy of Manson-Halford model is better than the other three models, and the prediction results of new nonequivalent cumulative damage models constructed in this paper are better than that of Manson-Halford model, and its calculation mode is relatively simple and suitable for engineering application.

Key words: fatigue, nonequivalent damage, cumulative damage model

中图分类号:

O346.2

孙振铎,吕松峰,侯东勃,张明洋. 非等效累积损伤模型[J]. 河北大学学报(自然科学版), 2022, 42(6): 580-588.

SUN Zhenduo, LYU Songfeng, HOU Dongbo, ZHANG Mingyang. Nonequivalent cumulative damage model[J]. Journal of Hebei University(Natural Science Edition), 2022, 42(6): 580-588.

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非等效累积损伤模型

Nonequivalent cumulative damage model

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