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Mechanical behavior of textile composite materials using a hybrid finite element approach
Author(s) -
Gowayed Yasser,
Yi Li
Publication year - 1997
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10284
Subject(s) - materials science , composite material , composite number , finite element method , stiffness , epoxy , composite laminates , glass fiber , interlock , structural engineering , engineering
A novel analytical solution is presented to describe the mechanical behavior and failure of textile reinforced composites. This solution is constructed from two parts. First a geometrical model, based on a processing science approach coupled with graphical rendering, is utilized to quantify the spatial characteristics of the fabric preform inside the composite. A 3‐D iterative hybrid finite element analysis is then used, utilizing data acquired from the geometrical model, to predict the stressstrain behavior of the composite. Inelastic behavior is modeled using an expanded Hahn and Tsai model and maximum stress criterion is used to predict initial failure. Damage progression is predicted based on a stiffness reduction approach. AS4 carbon/epoxy plain weave composite laminates, with a range of fiber volume fractions, have been tested. A 3‐D woven E‐glass/poly‐vinyl‐ester (PVE) angle interlock composite was also tested. Analytical results are compared with results from this experiment as well as other analytical models and experimental data in the literature. Theoretical model predictions are in agreement with most experimental data.