Fatigue. Estimation of High Cycle Fatigue Limit of Hard Shot Peened SUS316L by Using the Distributions of Residual Stress and Hardness.

1999 ◽  
Vol 48 (10) ◽  
pp. 1124-1129 ◽  
Author(s):  
Kiyotaka MASAKI ◽  
Yasuo OCHI ◽  
Takashi MATSUMURA
Keyword(s):  
Residual Stress ◽  
Fatigue Limit ◽  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Fatigue Estimation

The fatigue limit of bearing steels – Part I: A pragmatic approach to predict very high cycle fatigue strength

2012 ◽  
Vol 38 ◽  
pp. 155-168 ◽  
Author(s):  
Junbiao Lai ◽  
Thore Lund ◽  
Karin Rydén ◽  
Antonio Gabelli ◽  
Ingemar Strandell
Keyword(s):  
Fatigue Strength ◽  
Fatigue Limit ◽  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Pragmatic Approach ◽  
Bearing Steels ◽  
Very High Cycle Fatigue ◽  
Very High

scholarly journals Process Induced Residual Stress Effect on Fatigue Lifetime of Automotive Steel Components

2014 ◽  
Vol 996 ◽  
pp. 808-813
Author(s):  
Elias Merhy ◽  
Ngadia Taha Niane ◽  
Bastien Weber ◽  
Philippe Bristiel
Keyword(s):  
Residual Stress ◽  
Heat Affected Zone ◽  
High Cycle Fatigue ◽  
Low Cycle Fatigue ◽  
Welding Process ◽  
Fatigue Loading ◽  
Stress Effect ◽  
Cycle Fatigue ◽  
Residual Stress Field ◽  
Fatigue Lifetime

Metal Active Gas (MAG) welding process of steel sheets generates, in the vicinity of the welding joint, the well-known Heat Affected Zone (HAZ) in which the material presents more microstructural defects compared to the original metal. Since high cycle fatigue is largely dependent on the material microstructure features, the HAZ is considered as the weakest zone under high cycle fatigue loading. In addition, the welding causes, in the Heat Affected Zone, irreversible plastic strains that induce important residual stress fields in this critical zone of the structure. Therefore, in order to properly predict the high cycle fatigue life time of the welded automotive components, it is of primordial importance to first identify and then consider, if necessary, the welding induced residual stress field in the structure modeling. In this work, it is found that residual stresses have non-negligible impact on high cycle fatigue lifetime, while its effect is minor in the low cycle fatigue domain.

scholarly journals High cycle fatigue analysis in the presence of autofrettage compressive residual stress

2018 ◽  
Vol 41 (11) ◽  
pp. 2305-2320
Author(s):  
V. Okorokov ◽  
D. MacKenzie ◽  
Y. Gorash ◽  
M. Morgantini ◽  
R. van Rijswick ◽  
...  
Keyword(s):  
Residual Stress ◽  
Compressive Residual Stress ◽  
High Cycle Fatigue ◽  
Fatigue Analysis ◽  
Cycle Fatigue

scholarly journals Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method

2021 ◽  
Vol 16 (59) ◽  
pp. 115-128
Author(s):  
Sviatoslav Eleonsky ◽  
Yuri Matvienko ◽  
Vladimir Pisarev ◽  
Michael Zajtsev
Keyword(s):  
Residual Stress ◽  
Fracture Mechanics ◽  
Damage Accumulation ◽  
High Cycle Fatigue ◽  
Initial Point ◽  
Displacement Component ◽  
Electronic Speckle Pattern Interferometry ◽  
Cycle Fatigue ◽  
Fatigue Damage Accumulation ◽  
Plane Displacement

The novel destructive method is implemented for quantitative assessment of fatigue damage accumulation in the stress concentration zone accompanied by residual stress due to cold expansion of the through-thickness hole. Damage accumulation is reached by preliminary cyclic loading of plane specimens with cold-expanded holes. Narrow notches, emanating from the hole edge at different stages of high-cycle fatigue, serve to manifest a damage level. These notches are inserted without applying external load. Deformation response to local material removing, caused by pure residual stress influence, is measured by electronic speckle pattern interferometry (ESPI) in terms of in-plane displacement components. Normalized values of the notch mouth open displacement (NMOD), in-plane displacement component at the initial point of the notch acting in the notch direction (U0), in-plane displacement component at the final point of the notch acting in the notch direction (U1) and the stress intensity factor (SIF) are used as current damage indicators. Numerical integration of curves, describing an evolution of each fracture mechanics parameter over lifetime, produces the damage accumulation function in an explicit form. It is established that all four fracture mechanics parameters give very close results.

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