Fatigue strength, laws of inelastic deformation, and microcrack nucleation in steel 15Kh2MFA

1993 ◽  
Vol 25 (7) ◽  
pp. 482-487
Author(s):  
V. T. Troshchenko ◽  
V. V. Pokrovskii ◽  
P. V. Tokarev ◽  
P. V. Yasnii
Keyword(s):  
Fatigue Strength ◽  
Inelastic Deformation ◽  
Steel 15Kh2mfa

Stress Redistribution Locus of Perforated Plate Under Displacement-Controlled Loading, Force-Controlled Loading and Thermal Loading

2011 ◽  
Author(s):  
Osamu Watanabe ◽  
Akihiro Matsuda
Keyword(s):  
Fatigue Strength ◽  
Inelastic Deformation ◽  
Thermal Loading ◽  
Perforated Plate ◽  
Stress Redistribution ◽  
Stress And Strain ◽  
Collapse Load ◽  
Strength Based ◽  
Creep Fatigue ◽  
Nonlinear Feature

Stress and strain locus in inelastic deformation is important to evaluate the fatigue strength and creep-fatigue strength. The stress redistribution locus (SRL) of perforated plate under displacement-controlled condition has been studied so far by the present authors. The SRL curve under displacement-controlled loading is almost independent of the employed constitutive equation, and the SRL takes the similar curve as Neuber’s one, if the inelastic stress/strain is non-dimensionalized by elastic solutions. However, the SRL under force-controlled loading is not studied yet, which is closely related to collapse load and fatigue strength. The response under thermal loading is also important for fatigue strength and creep-fatigue strength. Based on the 3D FE solutions under force-controlled loading or thermal loading for the perforated plate, the nonlinear feature will be discussed.

STOCHASTIC CALCULATION OF LIFETIME PREDICTION FOR COMPONENTS IN METAL STRUCTURES DUE TO THE GROWTH OF MICRODEFECTS

2020 ◽  
Vol 4 (97) ◽  
pp. 69-76
Author(s):  
IGOR N. SILVERSTOV
Keyword(s):  
Fatigue Strength ◽  
Fracture Mechanics ◽  
Stochastic Approach ◽  
Fatigue Curve ◽  
Probability Of Failure ◽  
Lifetime Prediction ◽  
Statistical Distributions ◽  
Metal Structures

A stochastic approach has been developed to evaluate fatigue strength using elements of the fracture mechanics. The article presents a method for determining the initial parameters of statistical distributions. It also considers the method for constructing a fatigue curve for a component of any size and configuration with any given probability of failure.

EVALUATION OF ALTERNATIVE METHODOLOGY TO ESTIMATE THE FATIGUE STRENGTH OF INTERNALLY DEFECTIVE STEELS

2019 ◽  
Author(s):  
Lucas Carneiro Araujo ◽  
Pedro Vinícius Sousa Machado ◽  
Brenda Kennedy de Oliveira ◽  
JOSE ALEXANDER ARAUJO
Keyword(s):  
Fatigue Strength ◽  
Alternative Methodology
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