The fracture toughness of the alloys was measured on single-edgenotched beam and cracked beam specimens.
采用缺口和裂纹两种试样测定合金的断裂韧性；
2
The limit load formulae of single-edge deeply notched plates with round ends subjected to pure bend moment and tensile load under plane stress condition have been derived.
推导了平面应力条件下单边圆形底部深缺口板条受纯弯曲和拉伸载荷作用的极限载荷公式。
3
An experiment on dynamic rock fracture toughness test using edge-notched disc specimen is presented.