Post buckling modelling and optimization of sandwich panels with corrugated cores

• Autorzy: Gorji M. , Ashouri D. , Asadi H. , Haghi A. K.
• Języki publikacji: EN

Abstrakty

EN

In the present study, analytical expressions for critical loads are derived and eigenvalue and post buckling analyses are performed on the panels, using the finite element method, and the commercial software ABAQUS. A genetic algorithm is used for optimization of sandwich panels with periodic, open-cell cores. Yielding and buckling in components are treated as optimization constraints. Then minimum weights for some load capacities are determined. Design variables and cost function are defined as non-dimensional and optimal results are shown by diagrams.

Słowa kluczowe

EN

sandwich panel; corrugated core; finite element method; genetic algorithm; optimization

PL

płyta warstwowa; metoda elementów skończonych; algorytm genetyczny; optymalizacja

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2009
• Tom: Vol. 14, no 4
• Strony: 949--964
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Gorji M.

autor

Ashouri D.

autor

Asadi H.

autor

Haghi A. K.

• University of Guilan, P.O. Box 3756, Rasht, IRAN,

Bibliografia

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• Goldberg D.E. (1989): Genetic Algorithms in Search, Optimization, and Machine learning. - New York: Addison-Wesley.
• Haydn N.G. Wadley, Norman A. Fleck and Anthony G. Evans (2003): Fabrication and structural performance of periodic cellular metal sandwich structures. - Int. J. Composites Science and Technology, vol.63, No.16, pp.2331-2334.
• Lu T.J., Hutchinson J.W. and Evans A.G. (2001): Optimal design of a flexural actuator. - Int. J. the Mechanics and Physics of Solids, vol.49, pp.2071-2093.