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Trends in Applied Sciences Research
Year: 2009  |  Volume: 4  |  Issue: 1  |  Page No.: 62 - 67

Simulating Fatigue Propagation Life of Martensitic Steel

O.O. Ajayi and J. Ikotun    

Abstract: The linear elastic fracture mechanics equation together with that for stress intensity factor range ΔK, was used to develop a fatigue propagation life model, after substituting parameters of material constants. The model was then employed in creating simulation software which can be used at any time to generate data, make design consideration and predict response to variable loading. This became useful in predicting the life of metal from the point of crack initiation; investigate behaviour to changes in crack sizes and also determine adequate damage tolerance for the metal.

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