Multiaxial Fatigue Life Prediction of GH4169 Alloy Based on the Critical Plane Method

doi:10.3390/met9020255

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Multiaxial Fatigue Life Prediction of GH4169 Alloy Based on the Critical Plane Method
	Liu, Jianhui 1; Zhang, Zhen 1; Li, Bin 2; Lang, Shanshan 1
刊名	METALS
	2019-02
卷号	9 期号:2
关键词	GH4169 alloy critical plane method multiaxial fatigue additional hardening mean stress
ISSN号	2075-4701
DOI	10.3390/met9020255
英文摘要	The multiaxial fatigue life of GH4169 alloy was predicted based on the critical plane method. In this paper, a new critical plane-damage multiaxial fatigue parameter is proposed, in which the maximum shear strain is considered to be the main damage control parameter, and the correction parameter, including the normal stress and strain of the maximum shear strain plane, is defined as the second control parameter. The axis of principle strain rotates under non-proportional loading. Meanwhile, the mechanism of the variation of material microstructure and slip systems leads to an additional hardening phenomenon. The ratio of cyclic yield stress to static yield stress is used to represent cyclic strengthening capacity, and the influence of the phase difference and loading condition on the non-proportional reinforcement effect is considered. It is also proposed that different materials have different influences on the additional hardening phenomenon. Meanwhile, the model revision results in stress under asymmetrical loading. Experimental data of GH4169 alloy show that the proposed model can provide better prediction than the Smith-Watson-Topper (SWT) and Fatemi-Socie (FS) models.
资助项目	Natural Science Foundation of Gansu province[17JR5RA1220] ; National Natural Science Foundation of China[51605212]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000460764700146
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32112]
专题	机电工程学院
通讯作者	Liu, Jianhui
作者单位	1.LanZhou Univ Technol, Sch Mech & Electron Engn, Lanzhou 730050, Gansu, Peoples R China 2.Gansu Construct Vocat Tech Coll, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jianhui,Zhang, Zhen,Li, Bin,et al. Multiaxial Fatigue Life Prediction of GH4169 Alloy Based on the Critical Plane Method[J]. METALS,2019,9(2).
APA	Liu, Jianhui,Zhang, Zhen,Li, Bin,&Lang, Shanshan.(2019).Multiaxial Fatigue Life Prediction of GH4169 Alloy Based on the Critical Plane Method.METALS,9(2).
MLA	Liu, Jianhui,et al."Multiaxial Fatigue Life Prediction of GH4169 Alloy Based on the Critical Plane Method".METALS 9.2(2019).