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Fiber Composite Materials in an Arctic Environment

by Piyush K. Dutta, US Army Cold Regions Research &, Engineering Lab, United States,



Document Type: Proceeding Paper

Part of: Structural Materials

Abstract:

This paper summarizes a study on the behavior of light-weight structural composite materials in cold environments. Results are presented for two composite materials: fiberglass-epoxy and graphite-epoxy. The results show that low temperatures induce residual stresses in composites, which on developing microcracks can change both strength and stiffness properties of the composites. The strength degradation is severe at low temperatures in unidirectional composites when loaded in the fiber direction. In multilayered composites the material becomes weaker with increasing number of low-temperature thermal cycles.

Subject Headings: Composite materials | Synthetic materials | Fiber reinforced composites | Construction materials | Laminated materials | Material tests | Fiber reinforced polymer | Arctic

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