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Master Curve of Creep in Polymeric Off-Axis Composite Laminates

Published online by Cambridge University Press:  05 May 2011

H-W. Hu
H-W. Hu*
Affiliation:
Composite Materials and Structures Laboratory, Department of Vehicle Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung, Taiwan 91201, R.O.C.
*
*Associate Professor
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Abstract

An approach to establish a master curve for effective creep compliances of polymeric off-axis composites with various fiber orientations was presented. Carbon/epoxy composite IM7/977–3 was used to fabricate four types of off-axis specimens and then subjected to momentary creep tests after a period of initial aging. Creep compliance and elastic compliance were separated from the total compliance. Using one-parameter creep potential theory, creep compliances were transformed to effective creep compliances. After choosing a proper value for the one-parameter, all effective creep compliances with various off-axis fiber orientations were superposed into a master curve. This master curve enables us to obtain creep compliance with any off-axis fiber orientation by testing only one off-axis specimen.

Keywords

Polymeric off-axis compositesCreepPhysical agingOne-parameter creep potentialMaster curve
Type
Articles
Information
Journal of Mechanics , Volume 22 , Issue 3 , September 2006 , pp. 229 - 234
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2006

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