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Evaluation of hybrid-short-coir-fibre-reinforced composites via full factorial design
- Source :
- Oliveira, L Á, Santos, J C, Panzera, T, Freire, R T S, Vieira, L M G & Scarpa, F 2018, ' Evaluation of hybrid-short-coir-fibre-reinforced composites via full factorial design ', Composite Structures . https://doi.org/10.1016/j.compstruct.2018.01.088
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- A full factorial design (2 231 ) has been used to investigate the effect of the use of sodium hydroxide fibre treatment, Portland cement and uniaxial pressure on the physical and mechanical properties of hybrid short coir fibre reinforced composites (HSCoirFRCs). The response variables considered in this work were the apparent density, porosity, tensile and flexural strength , the modulus of elasticity and the Charpy impact resistance. The alkali treatment contributed not only to reduce the apparent porosity , but also to increase the mechanical properties of the HSCoirFRCs. A reduction of the impact resistance and an increase of the apparent density was also identified after treatment. Cold pressing significantly affected the physical and mechanical properties of the HSCoirFRCs. Higher pressure levels enhanced the wettability of the fibres and, consequently, the mechanical performance of the composites. The incorporation of cement microparticles as a second reinforcement phase was however not effective, leading to decreased strength and an increased apparent density of the materials. The HSCoirFRC structure can be considered an economical and sustainable alternative for future secondary structural parts in lightweight transport applications.
- Subjects :
- Portland cement
Materials science
Compaction
Charpy impact test
Young's modulus
02 engineering and technology
010402 general chemistry
01 natural sciences
law.invention
symbols.namesake
Flexural strength
law
Ultimate tensile strength
Full factorial design
Hybrid composites
Composite material
Porosity
Civil and Structural Engineering
Factorial experiment
021001 nanoscience & nanotechnology
0104 chemical sciences
Ceramics and Composites
symbols
Alkaline treatment
Coir fibre
0210 nano-technology
Subjects
Details
- ISSN :
- 02638223
- Volume :
- 202
- Database :
- OpenAIRE
- Journal :
- Composite Structures
- Accession number :
- edsair.doi.dedup.....fbcaf14cf3b82cc9b7475482bcdbfcfe
- Full Text :
- https://doi.org/10.1016/j.compstruct.2018.01.088