Determination of chemical cure shrinkage in woven-glass/epoxy laminates

Isaac M Daniel*, T. M. Wang, D. Karalekas, J. T. Gotro

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A method was developed and demonstrated for determination of the chemical cure shrinkage in polymeric matrix composites. A prepreg layer is applied on an identical layer of the same material which has already been cured and postcured. The assembled laminate is then cured and postcured and the resulting warpage is recorded by means of the shadow moire method. This warpage, consisting of elliptical equal deflection contours, is correlated to the chemical shrinkage by means of lamination theory. The two principal components of chemical shrinkage are related to the fringe order and the dimensions of the principal axes of any elliptical fringe.

Original languageEnglish (US)
Pages (from-to)632-634
Number of pages3
JournalAnnual Technical Conference - Society of Plastics Engineers
StatePublished - Dec 1 1989

ASJC Scopus subject areas

  • Engineering(all)

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