Abstract:A 3-D ellipsoidal flaw model is sufficiently versatile to cover a wide variety of flaw shapes: existing 2-D flaw models are special cases. The energy release rate from an eUipsoidal flaw in an infinite medium may be calculated by both a 'strain method' and a 'displacement method'. Solution techniques for both tension and compression are presented. The results calculated by both methods are in excellent agreement with available explicit results. The simpler and more efficient strain method is preferred in the c… Show more
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