3/11/2002, Monday Energy Release Rate

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3/11/2002, MondayEnergy Release Rate
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Fracture Toughness
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Question
Even if
There is stress singularity at the crack tip, why
crack can not propagate?
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Potential Energy
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Energy Requirement
D decrease in mechanical energy because of the
introduction of crack
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Inglis Solution
Plane stress
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Potential Energy Curve
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Crack Propagation
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Griffith Theory
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Fracture of a Cracked Body
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Theoretical Cohesive Strength
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Energy Release Rate
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Energy Balance