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Autori: Hadar, A., Nica, M.N., Constantinescu, I.N., Pastrama, S.D.
Editorial: Association of Mechanical Engineering of Slovenia, Strojniski Vestnik - Journal of Mechanical Engineering, 52 (7-8), p.546-551, 2006.
Failure mechanisms for composite materials and especially for laminated composites are different and more complex than for homogeneous and isotropic materials. That is why modeling and analysis of such structures are done having as main goal determination of the local stress states in the zones where high stress gradients occur: supports, points where load are applied, geometric discontinuities, junctions etc. In the case of junctions, one should elaborate constructive and technological solutions that ensure the maximum mechanical strength, taking into account the interpenetration between the layers. The next step is the optimization of the geometric and constructive configurations for the junctions. The authors propose a methodology for the geometric and constructive optimization of the junctions in structures made from laminated composite materials. Some examples of modeling for junctions in industrial structures, using the finite element method, are presented in this paper.
Cuvinte cheie: optimization, junction, laminated composite, finite element method