scholarly journals Fatigue crack growth assessment by FEA-based simulation of damage accumulation

2014 ◽  
Author(s):  
Sergei Petinov ◽  
Ruslan Guchinsky ◽  
Igor Korolev
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Damage Accumulation ◽  
Growth Assessment

scholarly journals Probabilistic fatigue crack growth assessment of Al 7075-T6 aerospace component

2017 ◽  
Vol 5 ◽  
pp. 430-437 ◽  
Author(s):  
Ahmed Bahloul ◽  
Amal Ben Ahmed ◽  
Chokri Bouraoui
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Al 7075 ◽  
Growth Assessment

Effect of Stress Ratio on Fatigue Crack Growth Threshold for Austenitic Stainless Steels in Air Environment

2017 ◽  
Vol 741 ◽  
pp. 88-93 ◽  
Author(s):  
Kunio Hasegawa ◽  
Saburo Usami
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Test Data ◽  
Stainless Steels ◽  
Stress Ratio ◽  
Austenitic Stainless Steels ◽  
R Ratio ◽  
Growth Assessment ◽  
Growth Threshold

The fatigue crack growth threshold ΔKth is an important characteristic of crack growth assessment for the integrity of structural components. However, the accurate threshold ΔKth values for austenitic stainless steels in air environment are lacking in many fitness-for-service (FFS) codes, although fatigue crack growth tests have been performed and many test data had been published. This paper focuses on fatigue crack growth threshold ΔKth values for austentic stainless steel in air environment. The paper introduces the current ΔKth values provided by four major FFS codes and summarizes the available test data based on the literature survey. The paper then discusses the applicability of the existing ΔKth for stainless steels and proposes a new relation as a function of the stress ratio (the R ratio) for use by FFS codes.

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