Modeling of composite and sandwich beams with a generic cross-section using a variable separation method

In this work, the modeling of laminated composite and sandwich beams with a generic cross-section is performed through a variable separation approach. For this purpose, the displacement is approximated as a sum of separated functions of the cross-section coordinates y,z and the axial coordinate x. T...

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Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2019-05, Vol.165, p.648-661
Main Authors: Vidal, P., Giunta, G., Gallimard, L., Polit, O.
Format: Article
Language:English
Subjects:
Composite beam
Engineering Sciences
Finite element solution
Generic cross-section
Mechanics
Variable separation method
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Summary:In this work, the modeling of laminated composite and sandwich beams with a generic cross-section is performed through a variable separation approach. For this purpose, the displacement is approximated as a sum of separated functions of the cross-section coordinates y,z and the axial coordinate x. This choice yields to a non-linear problem that can be solved by an iterative process. This latter consists of solving a 2D and 1D Finite Element problem successively at each iteration. Numerical examples involving several representative sandwich and laminated beams are addressed to show the accuracy of the present method. It is shown that it can provide 3D results and capture local effects for various types of cross-section.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2019.01.095