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Effect of fiber percentage and stacking sequence on mechanical performance of unidirectional hemp and palmyra reinforced hybrid composites
V.L. Narayana, , S.B.R. Devireddy
Published in International Information and Engineering Technology Association
2020
Volume: 30
   
Issue: 3-4
Pages: 153 - 160
Abstract
The use of natural fiber reinforced composites gains attention due to its weight and reasonable strength in the recent years. Generally, the mechanical performance of the hybrid composites are superior than the mono fiber reinforced composites. In this work, two different types of natural fibers, namely hemp and palmyra fibers, are selected as reinforcement materials for the development of unidirectional fiber reinforced hybrid composites. Composite laminate was fabricated with four different weight percentages (10 wt.%, 20 wt.%, 30 wt.% and 40 wt.%) and three different hybrid ratios (1:1, 1:2, and 2:1) of hemp and palmyra. The influence of fiber percentage and stacking sequence on the mechanical performance such as tensile strength, flexural strength, impact energy, and hardness of the hybrid composites was evaluated. From the results, it was observed that the adding 30 wt. % of hemp and palmyra fiber can increase the tensile strength and flexural strength by a percentage of 112% and 241% respectively. The impact energy absorption and the hardness of the hybrid composites are examined and compared. The experimental results shows that the hybrid composites containing high fiber weight percentage contribute to significant increase in impact energy and hardness. Morphological analysis is done using Scanning Electron Microscope (SEM). © 2020 Lavoisier. All rights reserved.
About the journal
JournalRevue des Composites et des Materiaux Avances
PublisherInternational Information and Engineering Technology Association
ISSN11697954