Journal
COMPOSITE STRUCTURES
Volume 202, Issue -, Pages 511-517Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2018.02.080
Keywords
Biocomposite; Impact behaviour; Finite element analysis (FEA); Natural fibres
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Funding
- Spanish Ministry of Economy [DPI2013-43994-R]
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The mechanical behaviour of conventional composites is usually assumed as linear-elastic up to failure. However, the mechanical behaviour of natural fibres based composites is non-linear with a significant influence of strain-rate. This study presents a FEM model to analyse the impact behaviour of flax/PLA composites. The constitutive model includes the consideration of plastic strains and the influence of strain rate. The model was validated through comparison with low-velocity impact tests. Numerical prediction were in agreement with experimental results conducted with two impactor nose at different impact energies.
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