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Design Considerations for Large-Scale Filament-Wound Composite Structures

by David W. Jensen, Penn State Univ, Univ Park, United States,
Patrick A. Hipp, Penn State Univ, Univ Park, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract:

An experimental investigation was conducted to quantify scaling effects in filament-wound composite structures. These preliminary results support the notion that an increase in thickness reduces the modulus of filament-wound specimens, while indicating that an increase in the number of weakened interfaces lowers the ultimate strength of woven composites, as hypothesized. However, these results are not yet conclusive. One possible factor affecting these results relates to the manufacturing process, where a winding pattern was employed which distributes the tow cross-overs over the surface of the cylinder making it difficult to control the number of tow eccentricities within the gage area of the specimen.

Subject Headings: Composite structures | Failure analysis | Structural analysis | Stress strain relations | Stress analysis | Load bearing capacity | Fouling

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