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Derive an expression for Griffith theory of brittle fracture.
written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

Mumbai University > Mechanical Engineering > Sem 4 > Material Technology

Marks: 10M

Year: Dec 2015
material technology
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written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k

Griffith proposed that a brittle material contains number of micro-cracks which causes stress rise in localized regions at a nominal stress which is well below the theoretical value. When one of the cracks spreads into a brittle fracture, it produces an increase in the surface energy of the sides of …

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