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The fracture stress according to Orowan’s theory of brittle fracture is __________ (where E is Yong’s modulus, ϒp is the plastic work required to extend the crack wall of the length 2

The fracture stress according to Orowan’s theory of brittle fracture is __________ (where E is Yong’s modulus, ϒp is the plastic work required to extend the crack wall of the length 2 Correct Answer . ] (Eϒp/]1/2 c) (Eϒp/2]1/2 d) (Eϒp/2] View Answer]

The first theory for brittle fracture was given by Griffith. But this was later modified by Orowan’s which uses the term of plastic work required to extend a crack, and this quantity is easy to measure experimentally. -> (Eϒp/a)1/2.

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