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I'm going to post this in the Technical section also.
"Failure Analysis and Fracture Mechanics," Metals Handbook Volume 11 - Failure Analysis and Prevention, ASM International, 9th Ed., 1986, by D. Broek, FractuREsearch, Inc., pp.47-64.
http://eagar.mit.edu/3.37/H-3371-06.pdfRespectfully,
Henry