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A steel plate has a fracture toughness of 50 MPa.m1/2. If it is exposed to a tensile stress of 400 MPa, calculate the minimum

A steel plate has a fracture toughness of 50 MPa.m1/2. If it is exposed to a tensile stress of 400 MPa, calculate the minimum length of a surface crack that will lead to fracture. Assume Y=1. 5.50 mm 10.4 mm 4.97 mm 8.01 mm

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