Assessment of embedded element technique in meso-FE modelling of fibre reinforced composites

The prevailing method in meso-finite element modelling of fibre reinforced composites is the continuous mesh (“full”) model in which the reinforcement and the matrix are assembled and meshed as one part. There are different difficulties in the full modelling; among others, poor mesh quality and high...

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Bibliographic Details
Published in:Composite structures 2014-01, Vol.107, p.436-446
Main Authors: Tabatabaei, S.A., Lomov, S.V., Verpoest, I.
Format: Article
Language:English
Subjects:
Computational efficiency
Embedded element method (EEM)
Fiber composites
Fibre
Finite element method
Finite element modelling (FEM)
Mathematical models
Modelling
Polymer–matrix composites (PMCs)
Reinforcement
Stresses
Textile composites
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Summary:The prevailing method in meso-finite element modelling of fibre reinforced composites is the continuous mesh (“full”) model in which the reinforcement and the matrix are assembled and meshed as one part. There are different difficulties in the full modelling; among others, poor mesh quality and high computational cost. The paper explores an alternative – the “embedded elements” (EE) technique for meso-FEM of fibre reinforced composites. To assess the capability of the EE method, different fibre configurations are considered and compared with the full model, ranging from a single fibre problem and unidirectional reinforcement to 5-harness satin composites. The results show that there is an agreement between the full and embedded element technique in prediction of the homogenized elastic properties, stress patterns, stress profiles, and maximum and minimum stress locations in the loaded unit cell.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2013.08.020