Three-dimensional modeling of non-planar fatigue crack growth in spur gear tooth using tetrahedral finite elements

2021 ◽  
pp. 107857
Author(s):  
Oğuzhan Demir
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Finite Elements ◽  
Crack Growth ◽  
Gear Tooth ◽  
Three Dimensional ◽  
Spur Gear ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling

Three-Dimensional Study of Fatigue Crack Growth in a Rotating Disc

2013 ◽  
Vol 3 (2) ◽  
pp. 45-62
Author(s):  
Eskandari Hadi ◽  
Nami Mohammad Rahim
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Crack Front ◽  
Numerical Technique ◽  
Three Dimensional ◽  
Crack Orientation ◽  
Rotating Disc ◽  
Mesh Density ◽  
Three Dimensional Finite Element

The problem of fatigue-crack-growth in a rotating disc at different crack orientation angles is studied by using an automated numerical technique, which calculates the stress intensity factors on the crack front through the three-dimensional finite element method. Paris law is used to develop the fatigue shape of initially semi-elliptical surface crack. Because of needs for the higher mesh density and accuracy near the crack, the sub-modeling technique is used in the analysis. The distribution of SIF’s along the crack front at each step of growth is studied and the effect of crack orientation on the rate of crack-growth is investigated. The calculated SIF’s are reasonable and could be used to predict the probable crack growth rates in fracture mechanics analysis and can help engineers to consider in their designing and to prevent any unwanted failure of such components.

scholarly journals Three-dimensional in situ observations of short fatigue crack growth in magnesium

2011 ◽  
Vol 59 (17) ◽  
pp. 6761-6771 ◽  
Author(s):  
A. King ◽  
W. Ludwig ◽  
M. Herbig ◽  
J.-Y. Buffière ◽  
A.A. Khan ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Three Dimensional ◽  
Short Fatigue Crack ◽  
In Situ Observations
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