From hydrostatic strain simulations, we discover maximum force of phosphorene bonds are at ϵ = .26 for bond strain. Using such, we describe the conditions of material transition where prior to layer fracture, the first-neighbor bond lengths must be below phosphorene's critical bond length whereas the second-neighbor bond lengths approach the critical bond length. Thus, bond fracture and formation may occur simulataneously and the phosphorene layer may orient into a lower stress state.