Numerical Model of Plastic Deformation on Cracked Surface under Repeated Pneumatic Impact

Table 1

Parameters.

Impact air tool		Chisel			Target material (Q345qD)
f (Hz)	Stroke (mm)	m (Kg)	E (GPa)	μ	E (GPa)	μ
90	6	0.1	206	0.3	206	0.3