Odukwe, O. A. and Ajayi, O. O. and Oluwadare, G. O.
Simulation of Crack Growth Rate in Martensitic Steel.
Journal of Applied Sciences, 7 (2).
This research used the stress intensity factor with rate of crack growth per cycle to model and simulate the crack growth in martensitic steel in air environment. The basic parameter used were da/dN and ΔK, log (da/dN) was analyzed against log ΔK and a regression analysis using data from log (da/dN) vs log (ΔK) was carried out and the outcome employed to develop a model and simulation which gave rise to interactive software that can be used to predict the behavior of structural member under conditions of certain loading. Additionally, it can be employed to have quick access to data and design considerations, when input data are supplied. This became useful in monitoring the point at which crack can initiate and the rate at which it would grow in a particular structural member of interest. The software has been tested with theoretical and experimental data.
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