A new method for predicting the fatigue strength at various stress ratios based on damage of metallic materials

doi:10.1111/ffe.14271

IMR OpenIR

	A new method for predicting the fatigue strength at various stress ratios based on damage of metallic materials
	Gao, Chong 1; Pang, Jianchao 1,3; Hu, Dejiang 2; Li, Shouxin 1; Qi, Kaili 1; Wang, Bin 1; Zhang, Yanyan 1; Nie, Liangliang 2; Yang, Mengqi 2; Zhang, Zhefeng 1,3
通讯作者	Pang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2024-04-01
发表期刊	FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
ISSN	8756-758X
页码	24
摘要	The prediction of fatigue strength for metallic materials in a wide range of stress ratios is a crucial engineering challenge. To pursue a more accurate method, the dependence of fatigue strength on stress ratio for 35CrMo steel and other materials was investigated in detail. It was found that as the stress ratio increases, the damage mechanism changes, and the errors of the conventional models in predicting the fatigue strength increase. The reason is that those models fail to describe the fatigue damage evolution of metallic materials under some special conditions. Based on the variational fatigue damage, a new prediction method was proposed by introducing the damage parameter. Through the validation with fatigue strength covering a variety of metallic materials and loading conditions, the method exhibits higher universality. And then the corresponding parameter of the formula is further analyzed to elucidate the influences of various loading conditions on fatigue damage of materials. The new method exhibits good generality and accuracy. The new method greatly improves the prediction efficiency. The optimized method can offer theoretical support to enhance fatigue properties.
关键词	damage mechanism fatigue strength metallic materials prediction method stress ratio
资助者	IMR Innovation Fund ; National Key Research and Development Program of China ; Science and Technology Project of Maintenance and Testing Branch, China Southern Power Grid Power Generation Co., Ltd ; National Natural Science Foundation of China (NSFC) ; Science and Technology Research Projects of Sichuan Province
DOI	10.1111/ffe.14271
收录类别	SCI
语种	英语
资助项目	IMR Innovation Fund ; National Key Research and Development Program of China[2022YFB3708200] ; Science and Technology Project of Maintenance and Testing Branch, China Southern Power Grid Power Generation Co., Ltd[022200KK52180006] ; National Natural Science Foundation of China (NSFC)[52001310] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52321001] ; Science and Technology Research Projects of Sichuan Province[2023ZYD0135] ; [2022-PY06]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001194236100001
出版者	WILEY
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185346
专题	中国科学院金属研究所
通讯作者	Pang, Jianchao; Zhang, Zhefeng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 2.CSG Power Generat Co LTD, Branch Co Maintenance & Test, Guangzhou, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gao, Chong,Pang, Jianchao,Hu, Dejiang,et al. A new method for predicting the fatigue strength at various stress ratios based on damage of metallic materials[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2024:24.
APA	Gao, Chong.,Pang, Jianchao.,Hu, Dejiang.,Li, Shouxin.,Qi, Kaili.,...&Zhang, Zhefeng.(2024).A new method for predicting the fatigue strength at various stress ratios based on damage of metallic materials.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,24.
MLA	Gao, Chong,et al."A new method for predicting the fatigue strength at various stress ratios based on damage of metallic materials".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2024):24.