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QUESTION
with 0.2 offset yield stress = 450 MPa and ultimate tensile stress = 550 MPa, E = 207 Gpa, v= 0.3. Estimate the provisional value JQ as according to ASTM standard E1820 or equivalent. Check whet
with 0.2 offset yield stress = 450 MPa and ultimate tensile stress = 550 MPa, E = 207 Gpa, v= 0.3.
Estimate the provisional value JQ as according to ASTM standard E1820 or equivalent.
Check whether JQ = J1c
Determine the thickness for valid K1c test
