Theoretical study shows that the crack extension under shear loading is caused by tensile stress, and it does not belong to shear fracture.
理论分析证明，在剪切载荷作用下裂纹扩展是由于拉伸应力引起的，并非剪切破坏。
Fatigue crack characteristics are investigated based on the dynamic response simulation by finite element and the dynamic response experiments for tensile-shear spot-welded specimens.
利用三维有限元模拟和动态响应试验对点焊接头疲劳裂纹萌生和扩展特性进行了研究。
And that the Angle between extending crack and principal axial stress decreases gradually is caused by the variation of tensile and shear stress focuses in the course of brittle formation.
而扩展裂纹与主应力夹角的逐渐减小则是裂纹附近张应力和剪应力集中点的变化所致。
应用推荐