A kinked edge crack has been detected in a large plate which is to be loaded by a remote tensile stress -85MPa(Mode I).
Posted: Fri Jul 01, 2022 6:54 am
A kinked edge crack has been detected in a large plate which is to be loaded by a remote tensile stress -85MPa(Mode I). In order to determine if this can be done without risk for fracture, a finite element analysis of the structure was performed and the strain energy release rate was determined to be G=23.83kN/m. Assume that LEFM (linear elastic fracture mechanics) can be used. Will the structure sustain the load? (30 pts) Data: Plane stress and linear elastic material with E=210GPa, v=0.3, Kic=65MN-m-³/2, a=100mm a ↑ ↑ 0 = 85 MPa = 85 MPa