Experimental Investigation on the Mechanical and Moisture Absorption Behavior of Indian Almond – Veli Karuvelam Hybrid Composites

ABSTRACT

In this study, Indian almond – Veli Karuvelam hybrid composites were fabricated by hand layup method and the mechanical & moisture absorption behaviors were studied. Totally, five composites were fabricated viz. I:V(1:0), I:V(0:1), I:V(3:1), I:V(1:1) & I:V(1:3). Tensile, flexural, impact & moisture absorption studies were carried out. Performance of all the composites was compared with each other. Experimental results showed that the I:V(0:1) exhibited the maximum tensile & flexural strength of 65 MPa & 240 MPa, respectively, due to the packing of more amount of high strength & high stiffness Veli Karuvelm fibers. Impact study showed that the I:V(0:1) composite displayed the maximum impact strength of 6.7 kJ/m² owing to the optimum bonding strength among the fibers and resin. Further, the moisture absorption study resulted that the I:V(1:0) composite showed the higher moisture absorption of 55% at 14 days compared to other composites because of the greater water intake capacity of the Indian almond fibers. It is concluded from this study that the I:V(0:1) composite could be used in structural applications as exhibited better mechanical properties.

摘要

本研究采用手工铺层法制备了印度杏仁-维利-卡鲁维兰混杂复合材料, 并对其力学性能和吸湿性能进行了研究. 共制备了五种复合材料, 即:.I:V(1:0), I:V(0:1), I:V(3:1), I:V(1:1)和I:V(1:3). 进行了拉伸、弯曲、冲击和吸湿性研究。比较了各种复合材料的性能. 实验结果表明, 由于大量高强度、高刚度的Veli-Karuvelm纤维的填充, I:V(0:1) 的最大拉伸和弯曲强度分别为65 MPa和240 MPa. 冲击研究表明, 由于纤维和树脂之间的最佳结合强度, I:V(0:1) 复合材料的最大冲击强度为6.7 kJ/m2. 此外, 吸湿性研究结果表明, 与其他复合材料相比, I:V(1:0) 复合材料在14天时表现出55%的较高吸湿性, 因为印度杏仁纤维具有更大的吸水能力. 从这项研究中可以得出结论, I:V(0:1) 复合材料可以在结构应用中表现出更好的力学性能.

KEYWORDS:

• Indian almond fiber
• Veli Karuvelam fiber
• hybrid composite
• mechanical behavior
• moisture absorption

关键词:

• 印度杏仁纤维
• 纤维
• 混杂复合材料
• 力学性能
• 吸湿性