3D fatigue crack path deflection and residual stresses in 17-4PH stainless steel rod

Shoemaker, Trevor; Harris, Zachary D.; Smudde, Christine M.; Hill, Michael R.; Burns, James T.

doi:10.1016/j.ijfatigue.2023.107735

Cited by 2 publications

(1 citation statement)

References 82 publications

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“…Huang's recent work showed that the as-extruded alloy that consists of coarse and fine grains with higher residual stress has low fracture toughness [29]. Shoemaker's analyses revealed that quench-induced residual stress in the round rod can promote a non-planar, 3D crack path with closure effects [30]. In weld joints, damage also always occurs at the site with high residual stress [31,32].…”

Section: Residual Stress Test At Stamping Position Of Bearing Cagementioning

confidence: 99%

Fracture Analysis and Working Stress Calculation of Bearing Cage Used in Charging Pump in a Nuclear Power Plant

Chen,

Jiang,

Duan

2023

Metals

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This paper presents an analysis of the fracture accident of a cylindrical roller bearing cage used in a charging pump in a nuclear power plant. The causes and mechanisms of bearing cage breakage were investigated by material failure analysis and simulation calculations. Macroscopic observation results confirmed that the cage fracture occurred at the stress concentration position. The microfracture morphology of the cage obtained from scanning electron microscopy showed a fatigue feature. The analysis of residual stress indicated large residual stress perpendicular to the fracture surface. The finite element calculation showed that when the bearing was moving in and out of the working area during operation, large working stress appeared at the stress concentration position. Working stress and residual stress acted together, approaching the fatigue limit of materials, and finally led to the cage fatigue fracture. The stress of the other two structural cages of the same type of bearing was also calculated, and no such large stress concentration was identified; thus, one plastic cage was temporarily used.

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Section: Residual Stress Test At Stamping Position Of Bearing Cagementioning

confidence: 99%

Fracture Analysis and Working Stress Calculation of Bearing Cage Used in Charging Pump in a Nuclear Power Plant

Chen,

Jiang,

Duan

2023

Metals

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UAV 3D Path Planning based on Ant Colony Algorithm

2023

2023 Global Conference on Information Technologies and Communications (GCITC)

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3D fatigue crack path deflection and residual stresses in 17-4PH stainless steel rod

Cited by 2 publications

References 82 publications

Fracture Analysis and Working Stress Calculation of Bearing Cage Used in Charging Pump in a Nuclear Power Plant

Fracture Analysis and Working Stress Calculation of Bearing Cage Used in Charging Pump in a Nuclear Power Plant

UAV 3D Path Planning based on Ant Colony Algorithm

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