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Optimization of
stiffened panels considering geometric nonlinearity
Peyman Khosravi, Ramin Sedaghati and Rajamohan Ganesan |
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Vol. 2 (2007), No. 7, 1249–1265
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Abstract |
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In this study, an optimality criterion is presented for thickness optimization of plate structures with geometric nonlinearity. The optimization problem considers the thickness of each element of the finite element mesh as a design variable and aims to maximize the load-carrying capacity of the structure subject to constant total volume. The result of the thickness optimization of a nonstiffened panel is then used for locating the potential places to add the stiffeners. It is shown that the load-carrying capacity of the original panel may be improved significantly while having the same volume of material. Application of the method is illustrated by numerical examples. |
Keywords
thickness optimization, optimality criterion, stiffened
plates, geometric nonlinearity
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Milestones
Received: 7 September 2006
Accepted: 15 February 2007
Published: 1 September 2007
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Authors |
| Peyman Khosravi | |
| Department of Mechanical and
Industrial Engineering Concordia University Montreal, Quebec H3G 1M8 Canada |
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| Ramin Sedaghati | |
| Department of Mechanical and
Industrial Engineering Concordia University Montreal, Quebec H3G 1M8 Canada |
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| Rajamohan Ganesan | |
| Department of Mechanical and
Industrial Engineering Concordia University Montreal, Quebec H3G 1M8 Canada |
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