Compare the residual strength versus crack length of a panel with dimensions 72Hx36Wx0.050T, that is made out of 2024-T3 (KA=130 Ksi.in(1)/(2)) and 7075-T6 (KA=65 Ksi.in(1)/(2)). Plot the LEFM and Net Section Yield relationships (FRS versus Crack Length). Use MMPD for looking up the static strength properties. What is the critical crack length in each panel if the required residual strength is 18 Ksi?