Lay-up optimisation of composite plates to delay mode-jump instabilities

B. G. Falzon*, A. Faggiani, D. Brunner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experimental and numerical studies have shown that the occurrence of abrupt secondary instabilities, or mode-jumps, in a postbuckling stiffened composite panel may initiate structural failure. This study presents an optimisation methodology, using a genetic algorithm and finite element analysis for the lay-up optimisation of postbuckling composite plates to delay the onset of mode-jump instabilities. A simple and novel approach for detecting modejumps is proposed, based on the RMS value of out-of-plane pseudo-velocities at a number of locations distributed over the postbuckling structure.

Original languageEnglish
Title of host publication28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
Pages2325-2331
Number of pages7
Publication statusPublished - 01 Dec 2012
Externally publishedYes
Event28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 - Brisbane, Australia
Duration: 23 Sep 201228 Sep 2012

Publication series

Name28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
Volume3

Conference

Conference28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
CountryAustralia
CityBrisbane
Period23/09/201228/09/2012

Keywords

  • Carbon fibre composites
  • Genetic algorithms
  • Mode-jumping
  • Optimisation

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Lay-up optimisation of composite plates to delay mode-jump instabilities'. Together they form a unique fingerprint.

  • Cite this

    Falzon, B. G., Faggiani, A., & Brunner, D. (2012). Lay-up optimisation of composite plates to delay mode-jump instabilities. In 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 (pp. 2325-2331). (28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012; Vol. 3).