Preparation and Performance of Continuous Glass Fiber Reinforced Polypropylene Composite Honeycomb Sandwich Panels

Abstract

Abstract.As the light-weight and high-strength thermoplastic composites, novel honeycomb sandwich panels were discussed in this paper: continuous glass fiber reinforced polypropylene (GF/PP) laminated sheets were used as the surface and polypropylene (PP) honeycomb was used as the core. The effects of honeycomb core's height, thickness and aperture on the mechanical properties were analyzed in this paper. The composite honeycomb sandwich panels exhibited excellent bending strength at 37.6MPa and lateral pressure strength at 25.8MPa.

A review of mode I dominant interfacial fracture toughness test methods of skin-core bonding for thermoplastic composite sandwich structures

“…For this reason, a number of different thermoplastic-based sandwich composite structures and processing techniques have been developed in recent years. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Sandwich structures in principle consist of a three-layer cross-section with a core and two covering facesheets. 25 The resulting composition is similar to an I-beam structure with a clear division of tasks between facesheets and core, following the stress distribution in the cross-section induced by bending loads.…”