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The strain intensity criterion for crack branching in ceramics

✍ Scribed by Henry P. Kirchner

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
517 KB
Volume
10
Category
Article
ISSN
0013-7944

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✦ Synopsis

Abstrati-Using a fracture mechanics method, crack branching data from three investigations were put on a comparable basis and used to demons~~e a strong correlation between the stress intensity at crack branching and Young's modulus. This strong correlation suggests a strain intensity criterion fbr crack branching at sharp cracks in brittle materials fractured at room temperature. Crack branching in 20 ceramics and glasses occurs at a strain intensity close to 3.3 x IO-' ml'*.

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