Title page for ETD etd-5298-22449

Type of Document Master's Thesis
Author Walther, Brady M.
Author's Email Address bwalther@vt.edu
URN etd-5298-22449
Title An Investigation of the Tensile Strength and Stiffness of Unidirectional Polymer-Matrix, Carbon-Fiber Composites under the Influence of Elevated Temperatures
Degree Master of Science
Department Engineering Science and Mechanics
Advisory Committee
Advisor Name Title
Reifsnider, Kenneth L. Committee Chair
Gao, David Y. Committee Member
Lesko, John J. Committee Member
  • Polymer Composites
  • Tensile Strength
  • Temperature
  • Carbon Fiber
Date of Defense 1998-05-27
Availability unrestricted
Traditionally it was thought that the unidirectional strength in the fiber direction

of fiber dominated composites was not influenced by the matrix material. As long as the

fiber was not affected then the strength would remain. However this thesis will challange

that belief. The unidirectional strength in the fiber direction of fiber dominated

composites is influenced by the matrix material.

The object of this study was to examine the quasi-static tensile strength of unidirectional

polymer composites, and then use current analytic models to predict the experimental results.

The different matrix materials were polyphenylene Sulfide (PPS), vinyl ester with two

different fiber-matrix interface materials, and polyether ether ketone (PEEK).

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