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 language | English |
|---|---|
| Title of host publication | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 |
| Pages | 2325-2331 |
| Number of pages | 7 |
| Publication status | Published - 01 Dec 2012 |
| Externally published | Yes |
| Event | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 - Brisbane, Australia Duration: 23 Sep 2012 → 28 Sep 2012 |
Publication series
| Name | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 |
|---|---|
| Volume | 3 |
Conference
| Conference | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 |
|---|---|
| Country | Australia |
| City | Brisbane |
| Period | 23/09/2012 → 28/09/2012 |
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)
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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).