Abstract
Wedge-splitting test is carried out in present research.Determination of the residual crack extension resistance curves (KR-curves) associated with cohesive force distribution on fictitious crack zone of complete fracture process is implemented. In each temperature, with the distribution of cohesive force along the fracture process zone, the residual fracture toughness KR (Δ̱) increases with increasing crack length Δ̱. Whereas the KR-curves decrease with increasing temperatures Tm for the thermal damage induced.
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