scholarly journals Cracking simulation‐based cumulative fatigue damage assessment

2021 ◽  
Author(s):  
Mahmoud M. Farag ◽  
Ramy M. El‐Kady ◽  
Mohammad M. I. Hammouda
Keyword(s):  
Fatigue Damage ◽  
Damage Assessment ◽  
Simulation Based ◽  
Cumulative Fatigue Damage

scholarly journals Cracking simulation-based cumulative fatigue damage assessment

2021 ◽  
Author(s):  
mah farag ◽  
Ramy El-kady ◽  
M Hammouda
Keyword(s):  
Experimental Data ◽  
Collective Behavior ◽  
Damage Assessment ◽  
Fatigue Cracks ◽  
Damage Model ◽  
Surface Cracks ◽  
Fatigue Lifetime ◽  
Variable Amplitude ◽  
Simulation Based ◽  
Cumulative Fatigue Damage

This work is an extension of applying a previously developed fracture mechanics cracking damage model to predict the fatigue lifetime of un-notched round specimens made of a ferrite-pearlite 0.4C-70/30 carbon steel in some cases of variable amplitude loading VAL. The model simulates the collective behavior of growing short fatigue cracks originating from the specimen surface roughness. Material grains of different phases, sizes and strengths are randomly distributed over the minimum circumference. Possible activities of surface cracks are predicted against loading cycles. Relevant published experimental data were utilized for comparison. The present predictions are in agreement with the corresponding experimental results.

Reliability-based cumulative fatigue damage assessment in crack initiation

1999 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Yung Li Lee ◽  
Ming Wei Lu ◽  
Raymond C. Segar ◽  
Charles D. Welch ◽  
Richard J. Rudy
Keyword(s):  
Crack Initiation ◽  
Fatigue Damage ◽  
Damage Assessment ◽  
Cumulative Fatigue Damage
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