Quarter elliptical crack growth using three dimensional finite element method and crack closure technique

2014 ◽  
Vol 28 (6) ◽  
pp. 2141-2151 ◽  
Author(s):  
Mohammad-Hosein Gozin ◽  
Mehrdad Aghaie-Khafri
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crack Growth ◽  
Crack Closure ◽  
Three Dimensional ◽  
Elliptical Crack ◽  
Closure Technique ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Element Method

Fatigue Crack Growth Life Prediction for Surface Crack Located in Stress Concentration Part Based on the Three-Dimensional Finite Element Method

2004 ◽  
Vol 126 (1) ◽  
pp. 160-166 ◽  
Author(s):  
Y. Yamashita ◽  
M. Shinozaki ◽  
Y. Ueda ◽  
K. Sakano
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Surface Crack ◽  
Three Dimensional ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Element Method

Fatigue crack growth prediction methods using three-dimensional finite element analyses were investigated to improve the predictability of part-through surface crack growth life. First, a direct analysis method of cyclic finite element analysis was adopted. Fatigue crack growth was predicted on a step by step basis from the Paris’ law using stress intensity factor range ΔK calculated by the three-dimensional finite element method. This method takes the procedure of cyclic operation of finite element analysis modeled with crack tip elements, crack growth increment calculation and remeshing of the finite element model. Second, a method based on the influence function method for the ΔK calculation directly using three-dimensional finite element method analysis result has been developed and applied. It was found that crack growth prediction based on the step by step finite element method and the method based on the influence function method showed good correlation with the experimental results if Paris’ law coefficient C, determined by CT specimen, was appropriately used for a semi-elliptical surface crack.

Three Dimensional Dynamic Analyses on Stroller Wheel with Shock Absorber

2013 ◽  
Vol 387 ◽  
pp. 159-163
Author(s):  
Yi Chern Hsieh ◽  
Minh Hai Doan ◽  
Chen Tai Chang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Three Dimensional ◽  
Adaptive Finite Element Method ◽  
Adaptive Finite Element ◽  
The Road ◽  
Dimensional Finite Element ◽  
On The Road ◽  
Three Dimensional Finite Element ◽  
Element Method

We present the analyses of dynamics behaviors on a stroller wheel by three dimensional finite element method. The vibration of the wheel system causes by two different type barriers on the road as an experiment design to mimic the real road conditions. In addition to experiment analysis, we use two different packages to numerically simulate the wheel system dynamics activities. Some of the simulation results have good agreement with the experimental data in this research. Other interesting data will be measured and analyzed by us for future study and we will investigate them by using adaptive finite element method for increasing the precision of the computation results.

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