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According to Griffith theory which of the following are true for...

This question belongs to Metallurgical Engineering Physical Metallurgy
Physical Metallurgy
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According to Griffith theory, which of the following are true for the fracture stress in a brittle material?
P. Increases with increasing surface energy
Q. Decreases with increasing elastic modulus
R. Decreases with increasing length of pre-existing crack
S. Decreases with increasing number of pre-existing cracks of same size

Answer & Solution
Correct Answer: Option B
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