Measurement of residual stress in thick section composite laminates using the deep-hole method

MG Bateman, OH Miller, TJ Palmer, CEP Breen, EJ Kingston, DJ Smith, MJ Pavier

Research output: Contribution to journalArticle (Academic Journal)peer-review

34 Citations (Scopus)

Abstract

The deep-hole method is a method of measuring residual stress in large metallic components. In this paper, an extension to the deep-hole method is described to allow the residual stresses in thick section composite laminated plates to be evaluated. The method involves first drilling a small hole through the laminate perpendicular to the surface. The material around the hole is then machined away, resulting in a change in diameter of the hole due to the release of residual stress. This change in diameter is measured and used to calculate the residual stress. The calculation requires the evaluation of coefficients that depend on the properties of the composite. In this work, the finite element method is used to evaluate these coefficients. Using this method, the residual stresses in a 22 mm thick carbon/epoxy composite plate are measured and reported.
Translated title of the contributionMeasurement of residual stress in thick section composite laminates using the deep-hole method
Original languageEnglish
Pages (from-to)1718 - 1739
Number of pages22
JournalInternational Journal of Mechanical Sciences
Volume47 (11)
DOIs
Publication statusPublished - Nov 2005

Bibliographical note

Publisher: Elsevier

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