A Brief Review on Advanced Sandwich Structures with Customized Design Core and Composite Face Sheet

Abstract

Sandwich structures are a class of multifunctional high-performance structural composites that have the advantages of being lightweight, of a high strength-to-weight ratio, and of high specific energy absorption capabilities. The creative design of the core along with the apposite material selection for the fabrication of the face sheet and core are the two prerequisites with encouraging areas for further expedition towards the fabrication of advanced composite sandwich structures. The current review work focused on different types of core designs, such as truss, foam, corrugated, honeycomb, derivative, hybrid, hollow, hierarchical, gradient, folded, and smart core along with different composite materials accessible for face sheet fabrication, including fiber-reinforced composite, metal matrix composite, and polymer matrix composite are considered. The joining method plays a major role for the performance evolution of sandwich structures, which were also investigated. Further discussions are aligned to address major challenges in the fabrication of sandwich structures and further enlighten the future direction of the advanced composite sandwich structure. Finally, the work is summarized with a brief conclusion. This review article provides wider guidelines for researchers in designing and manufacturing next-generation lightweight multilayer core sandwich structures.

Characteristics of Carbon-Fiber-Reinforced Polymer Face Sheet and Glass-Fiber-Reinforced Rigid Polyurethane Foam Sandwich Structures under Flexural and Compression Tests

“…The CFRP laminate was quasi-isotropic and consisted of three plies of carbon fiber (CF) with twill woven fabric at a 0/90 • orientation on the front outer ply, spread tow twill woven at a ±45 • orientation on the middle ply and plain twill woven at a 0/90 • orientation on the back outer ply with a total thickness of 0.85 mm and epoxy 304 as the matrix. The density of the CFRP was 1.42 g/cm 3 . Based on the ignition loss method according to ASTM D2584-18, the fiber volume fraction of the CFRP was 52%.…”

“…The behavior of a sandwich structure is affected by facing skin properties, core shear strength properties, interfacial bonding between the facing skin and core and the thickness of the skin and core [ 3 ]. In a composite sandwich, most of the bending loads are carried by the facing skins of the composite.…”

Investigation of mechanical behavior of glass fiber reinforced extruded polystyrene core material composites

“…11,12 While various classifications exist, they can generally be broadly divided into classes such as fiber reinforced polymer composites (FRP), sandwich composites, metal matrix composites (MMC), ceramic matrix composites, polymer matrix composites, and bio-composites. 13–16…”

Study on the Energy Absorption Characteristics of Different Composite Honeycomb Sandwich Structures under Impact Energy

“…The unique advantages of sandwich structure are their improved energy absorption capacity and excellent impact resistance. These advantages of the sandwich structure make it widely used in engineering applications, such as the ship, automobile, aviation and aviation industries [1]. It can be seen that the superiority of the honeycomb structure is becoming more and more prominent.…”