Discussion
Which statement about the stress intensity factor is INCORRECT?
Answer: A
Correct answer: It is a property of the material
The stress intensity factor is a property of the situation, not the material: it combines the applied stress, the crack length and the geometry, and any material would experience the same \( K \) in the same configuration. The fracture toughness \( K_{IC} \) is the material property, being the critical value of \( K \) at which that material fractures.
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