Layup optimization with GA for tapered laminates with internal plydrops

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

Volumn 7, Issue , 2004, Pages 5290-5301

  Rhee, Seung Yun ^a   Cho, Maenghyo ^a  

^a Seoul National University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

DELAMINATION; FINITE DIFFERENCE METHOD; GENETIC ALGORITHMS; HARMONIC ANALYSIS; OPTIMIZATION; PILES; SHEAR STRENGTH; STRAIN; STRESS CONCENTRATION;

INTERLAMINAR STRESSES; LAYUP OPTIMIZATION; PLYDROPS; TAPERED LAMINATES;

LAMINATED COMPOSITES;

EID: 16244416161     PISSN: 02734508     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.2004-2020     Document Type: Conference Paper

References (13)

1. Pipes, R. B., Pagano, N. J., "Interlaminar stresses in composite laminates under uniform axial extension," Journal of Composite Materials, Vol. 4, 1970, pp. 538-548.
2. Flanagan, G., "An efficient stress function approximation for the free-edge stresses in laminates," Inter-national Journal of Solids and Structures, Vol. 31, 1994, pp. 941-952.
3. Fish, J. C., Lee, S. W., "Delamination of tapered composite structures," Engineering Fracture Mechanics, Vol. 34, 1989, pp. 43-54.
4. Botting, A. D., Vizzini, A. J., Lee, S. W., "Effect of ply-drop configuration on delamination strength of tapered composite structures," AIAA Journal, Vol. 34, No. 8, 1996, pp. 1650-1656.
5. Mukherjee, A., Varughese, B., "Development of a specialized finite element for the analysis of composite structures with ply drop-off," Composite Structures, Vol. 46, 1999, pp. 1-16.
6. Harrison, P. N., Johnson, E. R., "A mixed variational formulation for interlaminar stresses in thickness-tapered composite laminates," International Journal of Solids and Structures, Vol. 33, No. 16, 1996, pp. 2377-2399.
7. th SDM Conference, Atlanta, GA, 2000, Paper Number A00-24651.
8. Le Riche, R., Haftka, R. T., "Optimization of laminate stacking sequence for buckling load maximization by genetic algorithm," AIAA Journal, vol. 31, no. 5, 1993, pp. 951-956.
9. Todoroki, A., Haftka, R. T., "Stacking sequence optimization by a genetic algorithm with a new recessive gene like repair strategy," Composite Part B, Vol. 29, No. 3, 1998, pp. 277-285.
10. Soremekun, G., Gürdal, Z., Haftka, R. T., Watson, L. T., "Composite laminate design optimization by genetic algorithm with generalized elitist selection," Computers and Structures, Vol. 79, 2001, pp. 131-143.
11. Lekhnitskii, S. G., Theory of elasticity of an anisotropic body, Holden-Day, Inc., San Francisco, 1963.
12. Cho, M., Rhee, S. Y., "Layup optimization considering free-edge strength and bounded uncertainty of material properties," AIAA Journal, Vol. 41, No. 11, 2003, pp. 2274-2282.
13. Cho, M., Rhee, S. Y., "Optimization of laminates with free edges under bounded uncertainty subject to extension, bending and twisting," International Journal of Solids and Structures, Vol. 41, No. 1, 2004, pp. 227-245.