Journal
COMPOSITES PART B-ENGINEERING
Volume 54, Issue -, Pages 188-193Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2013.04.058
Keywords
Discontinuous reinforcement; Polymer-matrix composites (PMCs); Flax fibers
Funding
- ESF [2009/0209/1DP/1.1.1.2.0/09/APIA/VIAA/114]
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The growing usage of short-flax-fiber-reinforced polymer composites in such applications as automotive industry necessitates the prediction of their mechanical response up to and beyond the limit of elasticity. Due to the imperfect, mechanical interlocking-dominated adhesion of natural fibers to most polymers, both fiber debonding and matrix yielding contribute to the non-linear deformation. In the present study, the deformation under an active loading of a short misaligned fiber composite is modeled by the orientation averaging approach, employing an analytical description of the behavior of a unit cell (UC), the parameters of which are determined using a FEM analysis of UC response under selected loading modes. The model is applied to the prediction of stress-strain diagrams in tension of flax/polypropylene composites with different fiber volume fractions. (C) 2013 Elsevier Ltd. All rights reserved.
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