Computational Methods in Predicting the Elastic Engineering Constants for Multi-layered Composites

Iuliana Dupir (Hudisteanu), Vlad Lupasteanu

Abstract


The paper presents the development of the computational equations which describe the elastic behaviour of multi-layered composites. The prediction of the elastic engineering constants is studied based on classical lamination theory, both for an orthotropic lamina and for a symmetric angle-ply laminate. The stiffening effect of stacking two or more laminas is demonstrated based on a case study, where two different types of composite material were analysed. Graphical distributions of the engineering constants with respect to different fibre volume fractions, for unidirectional off-axis laminas and symmetric angle-ply laminates, were represented. The influence of the fibre volume fractions on the elastic behaviour of composite laminates is also investigated.

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References


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