An adiabatic shear band formed along the main shear stress around the penetrated hole is approximately consistent with the direction of plastic deformation slip lines in static state.

The results showed that the bubbly defects were caused by banded inclusion lied in steel slab from mould powder and plastic deformation were not consistent from center to the surface during rolling.

It is shown that Although the deformation curve under the pressure of axis is well consistent between micro-concrete and normal-concrete, the elastic ratio and strength are different.