Influence of the stress gradient at the notch on the critical distance and life prediction in HCF and VHCF

被引：20

作者：

Shen, Jiebin ^{[1
,2
,3
]}

Fan, Haidong ^{[2
,3
]}

Zhang, Guoqian ^{[4
]}

Pan, Rong ^{[4
]}

Wang, Jian ^{[1
,3
]}

Huang, Zhiyong ^{[1
,3
]}

机构：

[1] Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu, Peoples R China

[2] Sichuan Univ, Coll Architecture & Environm, Chengdu, Peoples R China

[3] Sichuan Univ, Key Lab Deep Earth Sci & Engn, Chengdu, Peoples R China

[4] AEEC Sichuan Gas Turbine Estab, Chengdu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2022年 / 162卷

基金：

中国国家自然科学基金;

关键词：

Notch fatigue; Stress gradient; Critical distance; Life prediction; VHCF regime; STRAIN-ENERGY DENSITY; CYCLE FATIGUE; FRACTURE-TOUGHNESS; LOAD-RATIO; STRENGTH; BEHAVIOR; TEMPERATURE; SPECIMENS; CARBON; GEOMETRY;

D O I：

10.1016/j.ijfatigue.2022.107003

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The stress gradient associated with the notch geometry was integrated into the critical distance estimate procedure and formed the Stress Gradient Method (SGM) proposed in this study. The critical distance was discovered to be highly related to the product of the fatigue life and the stress gradient. The fatigue life of varied notched specimens was then pr edicted using SGM and three other typical critical distance determination methods. The results showed that using the SGM was beneficial for enhancing the prediction accuracy of the theory of critical distance (TCD) in the HCF regime. Furthermore, it is acceptable for applying the SGM in the VHCF regime with mean stress.

引用

页数：10

共 48 条

[1] Notch effect on fatigue strength reduction of bearing steel in the very high cycle regime [J].

Akiniwa, Yoshiaki ;

Miyamoto, Nobuyuki ;

Tsuru, Hirotaka ;

Tanaka, Keisuke .

INTERNATIONAL JOURNAL OF FATIGUE, 2006, 28 (11) :1555-1565

[2] Effect of corrosion-induced hydrogen embrittlement and its degradation impact on tensile properties and fracture toughness of (Al-Cu-Mg) 2024 alloy [J].

Alexopoulos, Nikolaos D. ;

Dietzel, Wolfgang .

21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21), 2016, 2 :573-580

[3] Stress gradient effect on crack initiation in fretting using a multiaxial fatigue framework [J].

Amargier, R. ;

Fouvry, S. ;

Chambon, L. ;

Schwob, C. ;

Poupon, C. .

INTERNATIONAL JOURNAL OF FATIGUE, 2010, 32 (12) :1904-1912

[4] The fatigue behaviour of three-dimensional stress concentrations [J].

Bellett, D ;

Taylor, D ;

Marco, S ;

Mazzeo, E ;

Guillois, J ;

Pircher, T .

INTERNATIONAL JOURNAL OF FATIGUE, 2005, 27 (03) :207-221

[5] A review of the volume-based strain energy density approach applied to V-notches and welded structures [J].

Berto, F. ;

Lazzarin, P. .

THEORETICAL AND APPLIED FRACTURE MECHANICS, 2009, 52 (03) :183-194

[6] High temperature fatigue tests of un-notched and notched specimens made of 40CrMoV13.9 steel [J].

Berto, Filippo ;

Gallo, Pasquale ;

Lazzarin, Paolo .

MATERIALS & DESIGN, 2014, 63 :609-619

[7] Computational micromechanics of fatigue of microstructures in the HCF-VHCF regimes [J].

Castelluccio, Gustavo M. ;

Musinski, William D. ;

McDowell, David L. .

INTERNATIONAL JOURNAL OF FATIGUE, 2016, 93 :387-396

[8] Ultra-long cycle fatigue of high-strength carbon steels part II: estimation of fatigue limit for failure from internal inclusions [J].

Chapetti, MD ;

Tagawa, T ;

Miyata, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 356 (1-2) :236-244

[9] The fatigue life of notched magnesium sheet metals with emphasis on the effect of bands of twinned grains [J].

Denk, Josef ;

Dallmeier, Johannes ;

Huber, Otto ;

Saage, Holger .

INTERNATIONAL JOURNAL OF FATIGUE, 2017, 98 :212-222

[10] A uniform volume-based fatigue indicator for high- and low-cycle assessment of notched components [J].

Feng, Liuyang ;

Qian, Xudong ;

Jiang, Rongrong .

INTERNATIONAL JOURNAL OF FATIGUE, 2021, 144

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