Metamodels for Optimum Design of Composite Stiffened Structures under Torsion Loading

Abstracts of 48th Israel Annual Conference on Aerospace Sciences 2008
Kaspars Kalniņš, Chiara Bisagni, Haim Abramovich, Potito Cordisco, Edgars Eglītis, Rolands Rikards

A numerical study has been carried out to approximate the post-buckling responses of stiffened box structures as shown in Figure 1. The structure is made of carbon fibers reinforced plastics and subjected to torsion loading. In a previous study [1], metamodeling methodology has been applied on axially loaded stiffened composite panels were significant post-buckling deformations have been observed before the final collapse of the structure. The proposed approach is based on the combined use of probabilistic structural analysis by sampling of computer experiments and approximating of the load shortening structural responses.

Keywords
Torsion loading, post-buckling response

Kalniņš, K., Bisagni, C., Abramovich, H., Cordisco, P., Eglītis, E., Rikards, R. Metamodels for Optimum Design of Composite Stiffened Structures under Torsion Loading. In: Abstracts of 48th Israel Annual Conference on Aerospace Sciences, Israel, Tel Aviv/Haifa, 27-28 February, 2008. Tel Aviv/Haifa: Technion, 2008, pp.22-22.

Publication language
English (en)