Accordingly, Stress Triaxiality, Strain Energy Density Factor and Maximum Circle Tensile Stress near the crack tip and their variation due to the circle angle variation can be derived.

• 根据内部裂尖附近的位移分量和应力分量可以得到裂尖的应力三维度,应变能密度因子以及裂尖附近的最大周向拉应力随着圆周角的变化而变化的情况。