Fatigue Crack Propagation under Complex Loading in Arbitrary 2D Geometries

2009 ◽  
pp. 120-120-26 ◽  
Author(s):  
ACO Miranda ◽  
MA Meggiolaro ◽  
JTP Castro ◽  
LF Martha ◽  
TN Bittencourt
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Complex Loading

Computational Analysis of Fatigue Crack Propagation at Elevated Temperature for IN718

2011 ◽  
Vol 110-116 ◽  
pp. 29-32
Author(s):  
Guo Bin Zhang ◽  
Huang Yuan
Keyword(s):  
Fatigue Crack ◽  
Elevated Temperature ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Damage Model ◽  
Complex Loading ◽  
Creep Damage ◽  
Loading Conditions ◽  
Creep Fatigue ◽  
Creep Damage Model

Creep damage is an important failure factor of high-temperature alloy. The fatigue crack growth under elevated temperature of the material is investigated for life prediction. In this paper, the numerical simulation of the crack propagation in nickel-based super alloy, IN718, was presented. A modified creep damage model was employed to accumulate the creep damage under cyclic loading conditions. The numerical results exhibit a reasonable agreement in the comparison with the experimental data. The cohesive zone approach, combining with the extended finite element method, has the ability to simulate the creep-fatigue crack propagation even for more complex loading conditions and specimen geometries.

High Cycle Fatigue and Fatigue Crack Propagation Behaviors of Modified A7075-T73 Alloy

2014 ◽  
Vol 52 (4) ◽  
pp. 283-291 ◽  
Author(s):  
Gwan Yeong Kim ◽  
Kyu Sik Kim ◽  
Joong Cheol Park ◽  
Shae Kwang Kim ◽  
Young Ok Yoon ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
High Cycle Fatigue ◽  
Cycle Fatigue
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