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, the four-point bending response and failure mechanisms of sandwich panels with corrugated steel faces and either plain or fibre-reinforced foamed concrete core were investigated.
81 citations
TL;DR: In this paper, an advanced geometrically nonlinear shell theory of doubly curved structural sandwich panels with transversely compressible core is presented, based on the adoption of the Kirchhoff theory for the face sheets and a second/third order power series expansion for the core displacements.
81 citations
TL;DR: In this article, the buckling limits of honeycomb unit cells with a range of geometries, including conventional hexagonal, re-entrant hexagonal and modifications of both thereof, were tested mechanically and simulated via finite element modeling.
81 citations
Patent•
25 Jun 1998
TL;DR: In this article, improved poured-in-place sandwich panels have been made which have a planar, rigid, cellular polyisocyanurate or polyurethane foam core, an interior facer on one side of the polyiscyanurate foam core and a metal skin on the other, opposite side of polyiscale foam core.
Abstract: It has been discovered that improved poured-in-place sandwich panels (10) may be made which have a planar, rigid, cellular polyisocyanurate or polyurethane foam core (12), an interior facer (18) on one side of the polyisocyanurate foam core and a metal skin (20) on the other, opposite side of the polyisocyanurate foam core. Adhesion of the metal skin to the polyisocyanurate or polyurethane foam core is improved through the use of a primer layer (22), such as a polyurea or a polyepoxide. Preferably, glass fibers are provided in the polyisocyanurate or polyurethane foam core as reinforcement and as fire retardant.
81 citations
TL;DR: A survey of recent developments and contemporary trends in the modeling of the deformation and buckling behavior of sandwich shells is presented in this paper, where the basic ideas and features of this model are outlined and compared to alternative recent approaches presented by other authors.
Abstract: The area of sandwich construction has been an active field of research for more than five decades. During this period, a large number of mathematical models for structural sandwich panels has been provided, ranging from the early sandwich membrane models to more sophisticated recent approaches. Especially during the past decade, the increasing demand for high-performance, lightweight structures has stimulated a strong trend toward the develoment of refined models for sandwich plates and shells. The main focus of the present paper is a survey of recent developments and contemporary trends in the modeling of the deformation and buckling behavior of sandwich shells. The development of refined sandwich models is illustrated by an approach recently proposed by the authors. The basic ideas and features of this model are outlined and compared to alternative recent approaches presented by other authors.
81 citations