Damage Characterization of Polypropylene Honeycomb Sandwich Panels Subjected to Low-Velocity Impact

Table 1

Specification of the core.

Component	Material	Specification
Core	Polypropylene (pp) honeycomb	Cell size—8 mm; Tissue—40 g/m^2; Weight—80–90 kgs/m^3; Thickness—20 mm, 40 mm and 60 mm
Facings	E-glass woven fabric	Plain weave
Adhesive	Epoxy resin	—