A new criterion of three dimensional mixed mode cracking is developed based on the generalized twinshearstrengththeory.
基于广义双剪应力强度理论，创建了一种新的三维复合型断裂准则——广义双剪断裂准则。
2
The twinshearstrengththeory to compute the strength of gun barrels is used. The effect of strength-difference and axial stress are considered. The calculating result is more convinced.
现利用双剪强度理论计算火炮身管的强度，考虑了材料的拉压异性影响和轴向应力的作用，计算结果更为可信。
3
The characteristics of the rock strength and failure under triaxial compressions are theoretically analyzed in detail with the twinsheartheory and the results are compared with experimental data.