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.

By the method of adiabatic theorem, this paper studies the semiclassical quantization of a chaotic state for a coupled system.

A quantal system with Hamiltonian which varies adiabatically with time obeys the adiabatic theorem, but the state of the system is not a stationary state having the stable property.