Topic
Sandwich panel
About: Sandwich panel is a research topic. Over the lifetime, 4665 publications have been published within this topic receiving 49812 citations.
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01 Jan 2009
TL;DR: The ability of sandwich panels to resist dynamic loading has been shown to be superior to monolithic metal plates of the same areal density by a number of investigators as mentioned in this paper, but mainly focus on the latter two.
Abstract: The ability of sandwich panels to resist dynamic loading has been shown to be superior to monolithic metal plates of the same areal density by a number of investigators. Experimental and numerical studies on the response of sandwich panels to air-blast, water-blast and “simulated blast” are increasing, but mainly focus on the latter two. Three types of sandwich panels are identified, by core type: cellular core, micro-architectural core (small-scale lattice type) and macro-architectural core (larger scale plastic deforming elements). With advances in manufacturing techniques, several new core topologies have emerged which can allow core properties to be tailored according to design requirements (of which blast resistance may only be one factor), for example, lattice cores formed by selective laser-melting and metallic fiber cores. This chapter provides an overview on the state-of-the-art in the field of sandwich panel protection under blast and dynamic loading.
25 citations
TL;DR: In this paper, a numerical solution for free vibration analysis of sandwich cylindrical panels made of a saturated functionally graded porous core and two similar homogenous homogenous cores is presented.
Abstract: In this paper a numerical solution is presented for free vibration analysis of sandwich cylindrical panels made of a saturated functionally graded porous (FG-porous) core and two similar homogenous...
25 citations
Patent•
24 Jul 2003
TL;DR: In this paper, an improved, load bearing, modular design container structure assembled from thermoformed fiber reinforced thermmoplastic (FRTP) sandwich panels is presented. But the exact configuration of articles so thermo-formed is design optimized to overcome manufacturing, assembly, weight, in-service and structural performance shortcomings of prior art and FRP sandwich panel structures.
Abstract: A method is disclosed utilizing off the shelf constant cross section thickness sandwich panels comprised of Fiber Reinforced Thermoplastic (FRTP) resin skins and low density thermoplastic (TP) core material wherein the steps of selectively and controllably exposing the panels to heat and incrementally thermoforming the skin-core into a consolidated composite edge or intra-panel area in consideration of subsequent mating and attachment of the FRTP sandwich panel to other structures is achieved. The exact configuration of articles so thermoformed is design optimized to overcome manufacturing, assembly, weight, in-service and structural performance shortcomings of prior art and FRP sandwich panel structures. Further disclosed is an improved, load-bearing, modular design container structure assembled from such thermoformed FRTP sandwich panels in which is utilized the unique core-skin edge configuration of the present invention in consideration of improved: load bearing performance, useful load volume, reduced manufacturing costs, structural weight savings, impact and damage tolerance and repair and replace issues.
25 citations
TL;DR: In this article, the influence of a face-to-core interface disbond on the strength of a foam core sandwich panel is investigated, and the analysis is verified with experiments on full-scale sandwich panels.
25 citations
TL;DR: In this paper, a new type of T-joint incorporating an aluminum U-channel in the web sandwich was found to provide much improvement over the conventional circular fillet Tjoint and two types of bolted joints were also studied to investigate the effectiveness of using bolts for suppressing debonding at the joint.
Abstract: Various T-joints of composite sandwich panels were investigated. The corresponding modes of failure at the joint were identified. The key modes of failure include debonding between the two sandwich components to be joined, debonding between the attachment and the sandwich panel, and cracking in the core of the sandwich. A new type of T-joint incorporating an aluminum U-channel in the web sandwich was found to provide much improvement over the conventional circular fillet T-joint. Two types of bolted joints were also studied to investigate the effectiveness of using bolts for suppressing debonding at the joint. It was shown that using bolts in a circular fillet joint could cause early failure in the core and would not help much to increase the ultimate joint strength. The experimental failure modes of the tested joints were explained with the help of FE analysis.
25 citations