Ebook: Problems of mixed mode crack propagation

This is not just another book on fracture mechanics. In recent years, there have been many books published on this subject in an attempt to assess the state of the art and its applications. The majority of the work dealt with energy release rate or critical stress intensity factor and is applicable only to fracture toughness testing. The main reason for this restriction is that the energy release concept cannot easily be extended to mixed mode fracture that occurs in practice as the rule rather than the exception. Cracks will normally curve or turn because the direction of loading can change as a function of time. Their directions of growth cannot be assumed as an a priori and must be determined from a pre-assumed criterion. Analysts are still perplexed with selecting an appropriate fracture criterion because it requires much discernment and judgement. Criteria which often appeared valid for idealized situations are quickly dis­ credited when encountering more complex physical phenomena. Moreover, the claim of generality cannot be justified on the basis of agreement between theory and experiment for a few simple examples.

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Content:
Front Matter....Pages I-XIII
The strain energy density criterion....Pages 1-10
The general two-dimensional crack problem....Pages 11-39
Branched cracks....Pages 41-69
Interacting cracks....Pages 71-95
Arc-shaped cracks....Pages 97-110
Cracks emanating from holes and rigid inclusions....Pages 111-136
Composite materials....Pages 137-166
Plates and shells....Pages 167-186
Three-dimensional crack problems....Pages 187-200
Back Matter....Pages 201-204

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Content:
Front Matter....Pages I-XIII
The strain energy density criterion....Pages 1-10
The general two-dimensional crack problem....Pages 11-39
Branched cracks....Pages 41-69
Interacting cracks....Pages 71-95
Arc-shaped cracks....Pages 97-110
Cracks emanating from holes and rigid inclusions....Pages 111-136
Composite materials....Pages 137-166
Plates and shells....Pages 167-186
Three-dimensional crack problems....Pages 187-200
Back Matter....Pages 201-204
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