Finite element simulation of phase difference effects on fretting fatigue crack nucleation behaviour

2014 ◽  
Vol 228 (4) ◽  
pp. 470-479 ◽  
Author(s):  
Reza Hojjati-Talemi ◽  
Magd Abdel Wahab ◽  
Patrick De Baets
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Finite Element Simulation ◽  
Phase Difference ◽  
Crack Nucleation ◽  
Fretting Fatigue ◽  
Fatigue Crack Nucleation ◽  
Element Simulation

Finite Element Simulation of Stable Fatigue Crack Growth Using Critical CTOD Determined by Preliminary Finite Element Analysis

2014 ◽  
Vol 891-892 ◽  
pp. 1675-1680
Author(s):  
Seok Jae Chu ◽  
Cong Hao Liu
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Finite Element Simulation ◽  
Crack Growth ◽  
Crack Tip ◽  
Stress Intensity Factor Range ◽  
Crack Tip Opening Displacement ◽  
Element Analysis ◽  
Element Simulation

Finite element simulation of stable fatigue crack growth using critical crack tip opening displacement (CTOD) was done. In the preliminary finite element simulation without crack growth, the critical CTOD was determined by monitoring the ratio between the displacement increments at the nodes above the crack tip and behind the crack tip in the neighborhood of the crack tip. The critical CTOD was determined as the vertical displacement at the node on the crack surface just behind the crack tip at the maximum ratio. In the main finite element simulation with crack growth, the crack growth rate with respect to the effective stress intensity factor range considering crack closure yielded more consistent result. The exponents m in the Paris law were determined.

Mesoscopical finite element simulation of fatigue crack propagation in WC/Co-hardmetal

2015 ◽  
Vol 49 ◽  
pp. 261-267 ◽  
Author(s):  
Utku Ahmet Özden ◽  
Ken P. Mingard ◽  
Maria Zivcec ◽  
Alexander Bezold ◽  
Christoph Broeckmann
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Crack Propagation ◽  
Finite Element Simulation ◽  
Fatigue Crack Propagation ◽  
Element Simulation
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