Official Answer
Answer
Shear failure of the ring occurs when the thrust load $P$ exceeds the shear strength of the ring material. The shear stress is $\tau = \frac{P}{\pi D t}$. For a material like Carbon Steel SAE 1070, the shear strength is approximately $0.6$ times the ultimate tensile strength. In impact scenarios, a dynamic load factor $K_i$ must be applied, typically $2.0$ or higher, such that $P_{dynamic} = K_i \cdot P_{static}$. The design is safe if $\tau_{dynamic} < \frac{\tau_{ult}}{S_f}$.
