A new probability model of residual strength of material based on interference theory

doi:10.1016/j.ijfatigue.2018.09.015

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	A new probability model of residual strength of material based on interference theory
	Gao, Jianxiong; An, Zongwen
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2019-01
卷号	118 页码:202-208
关键词	Residual strength Degradation rule Fatigue life Reliability Weibull distribution
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2018.09.015
英文摘要	The strength degradation rule of material under constant amplitude cyclic loading is critical to fatigue life prediction and reliability assessment of material. In this study, the disadvantages of the existing phenomenological residual strength models are analyzed and discussed, and a new probability model of residual strength of material is proposed based on interference theory. Firstly, the loading times fatigue life (LT-FL) interference model and the cyclic stress-residual strength (CS-RS) interference model are respectively established based on Weibull distribution. Then, a new probability model of residual strength is derived based on the equivalence between LT-FL and CS-RS interference models. Finally, the fatigue test data of unidirectional carbon/epoxy composites are used to verify the validity of the proposed model. Compared with the existing phenomenological residual strength models, the proposed model is derived from theoretical deduction and it can be easily established only through fatigue life data of material, while the existing phenomenological residual strength models are usually derived from subjective experiences and the establishment of these models generally requires a variety of experimental data of material.
资助项目	National Natural Science Foundation of China[51665029]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000449245700020
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32216]
专题	机电工程学院
通讯作者	An, Zongwen
作者单位	Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Gao, Jianxiong,An, Zongwen. A new probability model of residual strength of material based on interference theory[J]. INTERNATIONAL JOURNAL OF FATIGUE,2019,118:202-208.
APA	Gao, Jianxiong,&An, Zongwen.(2019).A new probability model of residual strength of material based on interference theory.INTERNATIONAL JOURNAL OF FATIGUE,118,202-208.
MLA	Gao, Jianxiong,et al."A new probability model of residual strength of material based on interference theory".INTERNATIONAL JOURNAL OF FATIGUE 118(2019):202-208.