Scanning electron microscopy (SEM) observation indicated that the fracture mode of this nanocomposite is mainly transgranular fracture, and many grain pull outs existed on its fracture surface.

The fracture type of the pure molybdenum bar with good transverse ductility is mainly a transgranular fracture type and net-type, which is characterized by a large amount of cleavage planes and river patterns.

The fracture type of pure Mo is intergranular fracture,the enhancement of the crack propagation stress of the Mo-C alloy is due to the addition of carbon,which makes the fracture type change to a transgranular fracture type.

The fragment ratio of tension and shear fracture of 50SiMnVB cylinder shell under explosive load is investigated.

A macro and micro and chemical element analysis was made on fracture of ruptured coupling bolts,torsion test was performed and stress analysis and calculation were made,the results show that when the steam turbine had failure,MP-LP rotor coupling bolts and generator-exciter rotor coupling bolts failure were classified as overload shear fracture with partial deformation .

Extensive research has been done on the fracture behavior of concrete, but very little on shear fracture.

Experiment study on size effect of concrete sheer fracture;