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ABSTRACT
The so called "sandwich" structures are produced by gluing or welding two thin skins on a lighter core with lower mechanic characteristics which maintains their spacing and transmits by shearing mechanical actions from one skin to the other. This article presents the sandwich structure concept through a description of the nature and properties of the constitutive materials, several notions related to the design of sandwich parts, the main manufacturing methods, bonding and finishing techniques and the various applications.
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Read the articleAUTHOR
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Christophe BINÉTRUY: Professor in the Polymer and Composite Technology and Mechanical Engineering Department at École des Mines de Douai - Composites Group Manager
INTRODUCTION
Sandwich structures play an important role in the construction of composite parts. They can be found in practically every field of application. These structures result from the bonding or welding of two thin skins (or soles) to a lighter core (or core) of weaker mechanical properties, which maintains their spacing and transmits mechanical actions from one skin to the other by shearing.
This dossier presents the concept of the sandwich structure, describing the nature and properties of the constituent materials, a few concepts relating to the design of sandwich parts, the main manufacturing methods, joining and finishing techniques, and various applications.
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Sandwich structures
Benefits of sandwiches
Standards
The characterization of certain mechanical and physical properties of sandwiches is presented below. The characterization of skins is carried out according to the standards associated with the class of material used (see in particular article
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•International conferences, International Conference on Sandwich Structures (ICSS).
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