Question: A structural component is fabricated from an alloy that has a plane-strain fracture toughness of 62 M(m. It has been determined that this component fails

A structural component is fabricated from an alloy that has a plane-strain fracture toughness of 62 Mα(m. It has been determined that this component fails at a stress of 250 MPa when the maximum length of a surface crack is 1.6 mm. What is the maximum allowable surface crack length (in mm) without fracture for this same component exposed to a stress of 250 MPa and made from another alloy that has a plane strain fracture toughness of 51 MPα(m?

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