Energy field intensity approach for notch fatigue analysis

被引：94
作者：
Liao, Ding [1 ]
Zhu, Shun-Peng [1 ,2 ,3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Sichuan, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Key Lab Aeroengine Thermal Environm & Struct, Minist Ind & Informat Technol, Nanjing 210016, Jiangsu, Peoples R China
[3] Univ Elect Sci & Technol China, Ctr Syst Reliabil & Safety, Chengdu 611731, Sichuan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2019年 / 127卷
基金：
中国国家自然科学基金;
关键词：
Energy field intensity; Strain energy; Notch; Fatigue; Life prediction; PSEUDO STRESS CORRECTION; MULTIAXIAL FATIGUE; LIFE PREDICTION; CRITICAL DISTANCE; CRITICAL PLANE; FRACTURE CHARACTERISTICS; CYCLE FATIGUE; IN-PHASE; COMPONENTS; MODEL;
D O I：
10.1016/j.ijfatigue.2019.06.010
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Notched components with complex configurations are normally designed for engineering functional requirements. Geometrical discontinuities generally result into stress concentration and multiaxial stress states and eventually lead to fatigue failure. However, highly efficient methods for notch fatigue analysis of engineering components are still lacking. In this regard, by combining energy criteria with FE simulations, a new concept of energy field intensity (EFI) is proposed and an EFI-based framework is established for notch fatigue analysis of engineering components under multiaxial stress states. Better correlation of model predictions with experimental results of GH4169 and Al 7050-T7451 alloys are provided by the proposed model rather than that by Fatemi-Socie, Sun-Shang and energy criteria.
引用
收藏
页码：190 / 202
页数：13
相关论文
共 88 条
[1]   Probabilistic modeling of fatigue life distribution and size effect of components with random defects [J].
Ai, Y. ;
Zhu, S. P. ;
Liao, D. ;
Correia, J. A. F. O. ;
Souto, C. ;
De Jesus, A. M. P. ;
Keshtegar, B. .
INTERNATIONAL JOURNAL OF FATIGUE, 2019, 126 :165-173
[2]   Probabilistic modelling of notch fatigue and size effect of components using highly stressed volume approach [J].
Ai, Yang ;
Zhu, Shun-Peng ;
Liao, Ding ;
Correia, Jose A. F. O. ;
De Jesus, Abilio M. P. ;
Keshtegar, Behrooz .
INTERNATIONAL JOURNAL OF FATIGUE, 2019, 127 :110-119
[3]  
Akama Makoto, 2012, Journal of Computational Science and Technology, V6, P54, DOI 10.1299/jcst.6.54
[4]  
[Anonymous], 2007, THEORY CRITICAL DIST, DOI DOI 10.1016/B978-0-08-044478-9.X5000-5
[5]   Fatigue strength of severely notched specimens made of Ti-6Al-4V under multiaxial loading [J].
Berto, F. ;
Campagnolo, A. ;
Lazzarin, P. .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2015, 38 (05) :503-517
[6]   Multiaxial fatigue strength of severely notched cast iron specimens [J].
Berto, F. ;
Lazzarin, P. ;
Tovo, R. .
INTERNATIONAL JOURNAL OF FATIGUE, 2014, 67 :15-27
[7]   Multiaxial fatigue of V-notched steel specimens: a non-conventional application of the local energy method [J].
Berto, F. ;
Lazzarin, P. ;
Yates, J. R. .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2011, 34 (11) :921-943
[8]   New methodology of fatigue life evaluation for multiaxially loaded notched components based on two uniaxial strain-controlled tests [J].
Branco, Ricardo ;
Prates, P. A. ;
Costa, J. D. ;
Berto, Filippo ;
Kotousov, Andrei .
INTERNATIONAL JOURNAL OF FATIGUE, 2018, 111 :308-320
[9]  
Brown M. W., 1973, Proceedings of the Institution of Mechanical Engineers, V187, P745
[10]   A review of multiaxial fatigue criteria for random variable amplitude loads [J].
Carpinteri, A. ;
Spagnoli, A. ;
Vantadori, S. .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2017, 40 (07) :1007-1036
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