United States Department of Transportation
i
The Fracture Properties of Novel Sandwich Structures
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2013-01-01
[PDF-571.83 KB]
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TRIS Online Accession Number:1475250
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Edition:Final report.
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Abstract:The use of sandwich structures based on a light-weight foam metal matrix composite as the core component of hybrid systems with fiber-metal laminates as the skin layers represents a feasible technological approach for the development of novel automotive, aerospace and rail transportation components. These sandwich structures offer valuable physical and mechanical features such as weight reduction, improved safety, and superior impact and vibration properties. The main goal of the present project is to develop a novel sandwich structure based on an Interpenetrated Phase Composite foam and skin layers constituted by a metal/high-impact composite. The research program has been divided in two phases. The first phase, which is presented in this report, mainly concentrates on the development, analysis and characterization of the skin layers, with an initial mechanical evaluation of the foam and the sandwich structure. The second phase focuses rather on the dynamic properties of the foam and the sandwich material. Indeed, a full investigation on the sandwich system is currently in progress and will be presented in the subsequent Final Report.
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