Journal
BULLETIN OF MATERIALS SCIENCE
Volume 36, Issue 4, Pages 575-583Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-013-0524-6
Keywords
Sisal fibre; composites; polymer matrix; mechanical properties
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This work presents a systematic approach to evaluate and study the effect of process parameters on tensile, flexural and impact strength of untreated short sisal fibre-reinforced vinyl ester polymer-based composites and predicts the optimum properties of random natural fibre-reinforced composites. The natural fibre of sisal at lengths of 10, 30 and 50 mm and vinyl ester resin at loadings of 15, 30 and 45 (wt%) were prepared. The composite panel was then fabricated using hand lay method in cold process of size 180x160 mm(2). Samples were then cut from the panel and subjected to mechanical properties testing such as tensile, flexural and impact strengths. The average tensile strength ranges between 27 center dot 1 and 43 center dot 9 MPa. The flexural strength ranged between 26 center dot 9 and 49 center dot 5 MPa and the impact strength ranged between 16 and 93 J/m. The strength values were optimized using factorial design and genetic algorithm (GA) method. The predicted optimum process parameter values are in good agreement with the experimental results.
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