Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading

doi:10.3390/cryst14090825

IMECH-IR > 非线性力学国家重点实验室

	Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading
	Tao ZQ(陶志强)1,2,3 ; Pan XN(潘向南)3 ; Zhang, ZiLing 4; Chen, Hong2 ; Li, LiXia 2
通讯作者	Tao, Zhi-Qiang([email protected])
发表期刊	CRYSTALS
	2024-09-01
卷号	14 期号:9 页码:22
摘要	The largest normal stress excursion during contiguous turn time instants of the maximum torsional stress is presented as an innovative path-independent fatigue damage quantity upon the critical plane, which is further employed for characterizing fatigue damage under multiaxial loading. Via using the von Mises equivalent stress formula, an axial stress amplitude with equivalent value is proposed, incorporating the largest torsional stress range and largest normal stress excursion upon the critical plane. The influence of non-proportional cyclic hardening is considered within the presented axial equivalent stress range. Moreover, according to proposed axial equivalent stress amplitude, an energy-based damage model is presented to estimate multiaxial fatigue lifetime upon the critical plane. In order to verify the availability of the proposed approach, the empirical results of a 7050-T7451 aluminum alloy and En15R steel are used, and the predictions indicated that estimated fatigue lives correlate with the experimentally observed fatigue results well for variable amplitude multiaxial loadings.
关键词	damage model life estimation critical plane multiaxial fatigue variable amplitude loadings
DOI	10.3390/cryst14090825
收录类别	SCI
语种	英语
WOS记录号	WOS:001322919500001
关键词[WOS]	PSEUDO STRESS CORRECTION ; CRITICAL-PLANE ; HIGH-CYCLE ; EQUIAXED MICROSTRUCTURE ; CRACK INITIATION ; FAILURE ANALYSIS ; TITANIUM-ALLOY ; PREDICTION ; CRITERION ; NOTCH
WOS研究方向	Crystallography ; Materials Science
WOS类目	Crystallography ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China ; Academic Research Projects of Beijing Union University[ZK80202101] ; R & D Program of Beijing Municipal Education Commission[KM202211417012] ; Open Foundation of National Key Laboratory of Strength and Structural Integrity[ASSIKFJJ202305002] ; [12002186] ; [51905334]
项目资助者	National Natural Science Foundation of China ; Academic Research Projects of Beijing Union University ; R & D Program of Beijing Municipal Education Commission ; Open Foundation of National Key Laboratory of Strength and Structural Integrity
论文分区	二类
力学所作者排名	1
RpAuthor	Tao, Zhi-Qiang
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/96854
专题	非线性力学国家重点实验室
作者单位	1.Beijing Union Univ, Coll Robot, Beijing 100020, Peoples R China; 2.Natl Key Lab Strength & Struct Integr, Aircraft Strength Res Inst China, Xian 710065, Shaanxi, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 4.Shanghai Maritime Univ, Logist Engn Coll, Shanghai 201306, Peoples R China
推荐引用方式 GB/T 7714	Tao ZQ,Pan XN,Zhang, ZiLing,et al. Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading[J]. CRYSTALS,2024,14,9,:22.Rp_Au:Tao, Zhi-Qiang
APA	陶志强,潘向南,Zhang, ZiLing,Chen, Hong,&Li, LiXia.(2024).Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading.CRYSTALS,14(9),22.
MLA	陶志强,et al."Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading".CRYSTALS 14.9(2024):22.