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

B. G. Falzon; A. Faggiani; D. Brunner

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

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

School of Mechanical and Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

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
Number of pages	7
Publication status	Published - 28 Sept 2012
Event	28th International Congress of the Aeronautical Sciences - Brisbane, Australia Duration: 23 Sept 2012 → 28 Sept 2012

Conference

Conference	28th International Congress of the Aeronautical Sciences
Country/Territory	Australia
City	Brisbane
Period	23/09/2012 → 28/09/2012

Bibliographical note

Paper ICAS2012-7.1ST

Access to Document

Cite this

@conference{0b23f19282184f29b7c1161f17c365ab,

title = "Lay-up optimization of composite plates to delay mode-jump instabilities",

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",

author = "Falzon, \{B. G.\} and A. Faggiani and D. Brunner",

note = "Paper ICAS2012-7.1ST; 28th International Congress of the Aeronautical Sciences ; Conference date: 23-09-2012 Through 28-09-2012",

year = "2012",

month = sep,

day = "28",

language = "English",

}

TY - CONF

T1 - Lay-up optimization of composite plates to delay mode-jump instabilities

AU - Falzon, B. G.

AU - Faggiani, A.

AU - Brunner, D.

N1 - Paper ICAS2012-7.1ST

PY - 2012/9/28

Y1 - 2012/9/28

N2 - 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

AB - 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

M3 - Paper

T2 - 28th International Congress of the Aeronautical Sciences

Y2 - 23 September 2012 through 28 September 2012

ER -

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

Abstract

Conference

Bibliographical note

Access to Document

Fingerprint

Cite this