The fracture stress according to Orowan s theory of brittle fracture i – McqOptions

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1.	The fracture stress according to Orowan s theory of brittle fracture is __________ (where E is Yong s modulus, p is the plastic work required to extend the crack wall of the length 2a).
A.	(E <sub>p</sub>/a)<sup>1/2</sup>
B.	(E <sub>p</sub>/a)
C.	(E <sub>p</sub>/2a)<sup>1/2</sup>
D.	(E <sub>p</sub>/2a)
Answer» B. (E <sub>p</sub>/a)

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