RELAXATION OF RESIDUAL STRESSES IN ANGLE-PLY COMPOSITE LAMINATES.

I. M. Daniel*, T. Liber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Lamination residual stresses in composite laminates are produced during curing as a result of the anisotropic thermal deformations of the various plies. The extent of relaxation of these stresses was investigated in laminates of six composite systems. Several means of evaluation of stress relaxation were used. An upper limit to the actual amount of residual stress relaxation was obtained by measuring stress relaxation in 90-degree unidirectional laminates. An indirect evaluation was made by determining the elastic and strength properties of angle-ply laminates as a function of time after curing.

Original languageEnglish (US)
Pages (from-to)249-262
Number of pages14
Journal[No source information available]
StatePublished - Jan 1 1976

ASJC Scopus subject areas

  • Engineering(all)

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