Local stiffness reduction in impacted composite plates from full-field measurements

J-H Kim, F Pierron, MR Wisnom, S Avril

Research output: Contribution to journalArticle (Academic Journal)

29 Citations (Scopus)

Abstract

The virtual fields method (VFM) is used as an inverse procedure to process curvatures obtained from full-field measurements for the identification of the local loss of stiffness in composite plates. The VFM has been adapted to the case of a plate with stiffnesses varying spatially. Two parameterization methods for the stiffness reduction were developed: continuous (polynomial) and discrete (piecewise). In this study, the procedure is described, validated on simulated data and several experimental results are given. The method not only picks up the location of the damage but also provides a fairly good estimate of the stiffness reduction in the damaged area when the through-thickness displacement distribution in the damaged region is reasonably linear.
Translated title of the contributionLocal stiffness reduction in impacted composite plates from full-field measurements
Original languageEnglish
Pages (from-to)1961 - 1974
Number of pages14
JournalComposites Part A: Applied Science and Manufacturing
Volume40 (12)
DOIs
Publication statusPublished - Dec 2009

Bibliographical note

Publisher: Elsevier

Fingerprint Dive into the research topics of 'Local stiffness reduction in impacted composite plates from full-field measurements'. Together they form a unique fingerprint.

  • Cite this