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State Griffith theory of brittle fracture. On the basis derive an expression for fracture stress? State Orwan$'$s modification
written 7.8 years ago by gravatar for teamques10 teamques10 ★ 65k modified 2.3 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

Mumbai University > Mechanical Engineering > Sem 4 > Material Technology

Marks: 10M, 8M

Year: May 2014, Dec 2014
material technology
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written 7.8 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 7.8 years ago

In practice it is observed that fracture occurs at much lower values of stresses as compared to theoretical cohesive strength of the metal. The first explanation of this discrepancy was proposed by Griffith. Theory proposed by him though applicable to perfectly brittle materials like glass it has helped to understand …

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