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THEORITICA STUDY OF FATIGUE CRACK GROWTH (FCG) FOR PURE NIOBIUM BY USING GENERELIZED PARIS EQUATION | ||
| Diyala Journal For Pure Science | ||
| Article 1, Volume 9, Issue 4, 2013, Pages 76-83 | ||
| Author | ||
| FAROUQ I.HUSSAIN | ||
| Abstract | ||
| A theoretical study was done in this work for Fatigue . Fatigue Crack Growth (FCG) and stress factor intensity range for Niobium. It also includes Generalized Paris Equation and the Fulfillment of his equation which promise that there is a relation between parameters c and n. used Simple Paris Equation through which we concluded the practical values of c and n and compared them with the theoretical values which have been concluded by Generalized Paris Equation . The value of da/dN and ∆K for every material and sample were concluded and compared with the data which was used in the computer program for the whole of our research . The program is written in Fortran . The theoretical and practical data was drawn with (Graf) program so as to conclude the data mentioned in the research . | ||
| Keywords | ||
| fatigue crack growth; Niobium | ||
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