How larger surface edge crack can the advanced ceramics

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Conventional ceramics have a fracture toughness of about 5, while advanced ceramics may have 20. Determine:

1) how larger surface edge crack can the advanced ceramics tolerate than the conventional ceramics for the same applies load?

2) how much more stress can the advanced ceramics hold than the conventional ceramics for the same surface crack size?

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How larger surface edge crack can the advanced ceramics : conventional ceramics have a fracture toughness of about 5 while advanced ceramics may have 20. determine1 how larger

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