Using the plasticity connector factor (i.e., defining an effective crack length) account for crack tip plasticity effects for the following problem and calculate the critical load P_{c} at fracture. The elastic solution is $σ(x,0)= π P √ l−x 1 ∣x∣<l.$ The fracture toughness and yield strength of the material are, respectively, K_{c} and σ_{ys}. Compare your solution with the elastic one and comment on the differences.