Effect of Hybridization Approach on Mechanical Performance of Jute-hemp/epoxy Hybrid Composite Laminates

ABSTRACT

In this study, four-layered hybrid jute-hemp/epoxy composite laminates were fabricated by increasing and decreasing the number of layers of both jute and hemp reinforcements during stacking. Two jute(J) and hemp(H) controlled i.e., A(0J4H) and E(4J0H) and three jute(J)-hemp(H) hybrid i.e., B(1J3H), C(2J2H) and D(3J1H), composite laminates were fabricated. Composites were fabricated by hand layup followed by compression molding technique, and different mechanical tests (tensile, flexural, Charpy and drop weight impact) were performed. Results showed that hemp/epoxy laminate A(0J4H) revealed the highest tensile, flexural, Charpy and drop weight impact testing results followed by three hybrid composite laminates i.e., B(1J3H), C(2J2H) and D(3J1H), respectively. In hybrid composites, trend of mechanical properties was increased with the increase in number of plies of hemp reinforcements. The least mechanical testing results were presented by the E(4J0H) laminate because it was comprised of only four plies of jute reinforcement. Drop weight impact tested samples revealed that hybrid laminates C(2J2H) showed the least damage area in comparison with others due to the presence of equal number of jute and hemp plies. Also, within the same time duration, the highest force value was achieved along with less displacement by A(0J4H) laminate during drop weight impact test.

摘要

在本研究中, 通过增加和减少堆叠过程中黄麻和大麻增强材料的层数, 制备了四层混杂黄麻-大麻/环氧树脂复合材料层压板. 制备了A(0J4H) 和e(4J0H) 两种黄麻 (J) 和大麻 (H) 控制的复合材料层压板, 以及B(1J3H), C(2J2H) 和D(3J1H) 三种黄麻 (J) -大麻 (H) 混杂复合材料层压板. 复合材料的制备方法是先手工叠层, 然后采用模压成型技术, 并进行不同的力学测试 (即拉伸, 弯曲, 夏比和落锤冲击). 结果表明, 大麻/环氧树脂层压板A(0J4H) 的拉伸, 弯曲, 夏比和落锤冲击试验结果最高, 其次是三种混杂复合材料层压板, 即B(1J3H), C(2J2H) 和D(3J1H). 在混杂复合材料中, 随着大麻增强层数的增加, 力学性能的趋势增加. E(4J0H) 层压板的机械性能最低, 因为它仅由四层黄麻增强材料组成. 落锤冲击测试样品显示, 由于黄麻和大麻层数相等, 与其他层板相比, 混合层板C(2J2H) 的损伤面积最小. 此外, 在相同的时间内, 在落锤冲击试验期间, A(0J4H) 层压板实现了最高的力值, 同时位移较小.

KEYWORDS:

• Jute
• hemp
• hybridization
• stacking sequence
• epoxy
• hybrid composites
• mechanical properties

关键词:

• 黄麻
• 大麻
• 杂交
• 堆叠顺序
• 环氧树脂
• 混杂复合材料
• 机械性能

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This research work was funded by the Higher Education Commission of Pakistan under Technology Development Fund [TDF03-112]