Topic
Sandwich-structured composite
About: Sandwich-structured composite is a research topic. Over the lifetime, 5853 publications have been published within this topic receiving 101126 citations.
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TL;DR: In this paper, composite sandwich beams were fabricated by bonding unidirectional carbon/epoxy face sheets (laminates) to aluminum honeycomb cores with an adhesive film, and they were tested under four-point and three-point bending.
166 citations
TL;DR: In this paper, a shape memory polymer (SMP) based syntactic foam and the foam cored composite sandwich structures were developed for the purpose of repeatedly self-healing impact damage.
164 citations
TL;DR: In this article, a new system of fiber reinforced plastic (FRP) connectors, developed at the University of Nebraska's Center for Infrastructure Research, for transferring shear forces from one concrete wythe to the other is described.
Abstract: This paper describes newly developed precast concrete sandwich panels. The panels use a new system of fiber reinforced plastic (FRP) connectors, developed at the University of Nebraska's Center for Infrastructure Research, for transferring shear forces from one concrete wythe to the other The use of FRP as the connector material increases the thermal efficiency of the panels compared to panels that contain steel or concrete connectors. The geometry and material properties of the new connector provide sufficient strength and stiffness for a significant transfer of shear between the two concrete wythes. The results of structural tests are analyzed and design recommendations are presented. Description of an accompanying thermal performance testing of these panels is also included. For full-scale specimens were tested in a vertical position. Two of the specimens contain the new FRP connectors, and two contain steel truss connectors. Measurements of load versus panel deflection and load versus connector stress are provided. The ultimate strength of the panels containing the new connector were found comparable to the strength expected of fully composite panels. The design of panels containing the proposed FRP connecting system can be undertaken ina manner similar to that composite panels. Ultimate strength of the panels can be computed assuming full composite action between the concrete wythes, it sufficient shear connectors are provided and the panels are not over-reinforced.
162 citations
TL;DR: In this paper, the authors compared the static and low-velocity impact response of two aluminium sandwich typologies: foam and honeycomb sandwich panels, respectively, using tomographic analyses of the impacted panels.
161 citations
TL;DR: In this article, the authors investigated the damage behavior of composite sandwich panels with aramid paper honeycomb (NOMEX) and polyetherimide (PEI) foam cores under transverse impacts at high velocities.
158 citations