Journal
COMPOSITES PART B-ENGINEERING
Volume 70, Issue -, Pages 1-8Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.09.040
Keywords
Fabrics/textiles; Polymer-matrix composites; Hybrid; Mechanical properties
Funding
- PETROBRAS
- FINEP
- CNPq
- CAPES
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In this study, composite plates were manufactured by hand lay-up process with epoxy matrix (DGEBA) reinforced with Kevlar fiber plain fabric and Kevlar/glass hybrid fabric, using to an innovative architecture. Results of the mechanical properties of composites were obtained by tensile, bending and impact tests. These tests were performed in the parallel direction or fill directions of the warp and in a 90 direction. FTIR was used in order to verify the minimum curing time of the resin to perform the mechanical tests, and scanning electron microscopy was used to observe reinforcement and matrix fractures. Composites with Kevlar/glass hybrid structure in the reinforcing fabric showed the better results with respect to specific mechanical strength, as well as bending and impact energy. (C) 2014 Elsevier Ltd. All rights reserved.
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