Finite element method (EFM) is used to calculate the stress and strain distribution in front of the notches with various root radii in bending specimen.

• 采用有限元方法计算了不同根半径缺口弯曲试样缺口前的应力应变分布,通过测定解理断裂点距缺口根部的距离,精确测定了解理断裂应力。