Experimental and Numerical Evaluation of Thermal Performance of Steered Fibre Composite Laminates

Z. Gürdal, G. Abdelal, K. C. Wu

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For Variable Stiffness (VS) composites with steered curvilinear tow paths, the fiber orientation angle varies continuously throughout the laminate, and is not required to be straight, parallel and uniform within each ply as in conventional composite laminates. Hence, the thermal properties (conduction), as well as the structural stiffness and strength, vary as functions of location in the laminate, and the associated composite structure is often called a “variable stiffness” composite structure. The steered fibers lead not only to the alteration of mechanical load paths, but also to the alteration of thermal paths that may
result in favorable temperature distributions within the laminate and improve the laminate performance. Evaluation of VS laminate performance under thermal loading is the focus of this chapter. Thermal performance evaluations require experimental and numerical analysis of VS laminates under different processing and loading conditions. One of the advantages of using composite materials in many applications is the tailoring capability of the laminate,
not only during the design phase but also for manufacturing. Heat transfer through variable conduction and chemical reaction (degree of cure) occurring during manufacturing (curing) plays an important role in the final thermal and mechanical performance, and shape of composite structures.
Original languageEnglish
Title of host publicationHeat Transfer – Engineering Applications
EditorsVyacheslav S. Vikhrenko
Number of pages30
ISBN (Print)978-953-307-361-3
Publication statusPublished - Dec 2011

Bibliographical note

Chapter Number: 6


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