SYMPOSIA PAPER Published: 01 January 1975

Thermoelastic Expansion of Graphite-Epoxy Unidirectional and Angle-Ply Composites


An experimental investigation of the thermal expansion of a unidirectional fiber-reinforced composite material is described herein. The basic material used in the tests was a prepreg graphite-epoxy tape, designated as Modmor-II, supplied by NARMCO. Unidirectional and angel-ply laminates were made from the prepreg tape and were tested for their linear thermal expansion in the temperature range between 25 and 150 °C (77 and 302 °F). The experimental results compared reasonably well with the predicted values of the thermal expansion coefficients calculated based on several existing linear elastic micromechanics theories and lamination theories.

Author Information

Wang, ASD
National Taiwan University and Chung-Shan Research Institute of Science and Technology, Taiwan, China
Pipes, RB
University of Delaware, Newark, Del.
Ahmadi, A
Drexel University, Philadelphia, Pa.
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Developed by Committee: D30
Pages: 574–585
DOI: 10.1520/STP32334S
ISBN-EB: 978-0-8031-4660-0
ISBN-13: 978-0-8031-0309-2