Finite Element Simulation of the Vibration Provided by Sandwich Rigid Panel with a Resilient Material In Between under Heavyweight Impact

Table 1

The specific of standard heavy impact source of rubber ball [20].

Item	Value
Mass	2.5 ± 0.1 kg
Shape	Hollow sphere
Diameter	180 mm
Thickness	30 mm
Restitution coefficient	0.8 ± 0.1
Shore A hardness	40 ± 5
Drop height	1 m
Maximum impact force	∼1500 N
Impact duration	20 ± 2 ms