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Research Article

Influence of Stacking Sequence and Fiber Content on the Mechanical Properties of Natural and Synthetic Fibers Reinforced Penta-Layered Hybrid Composites

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ABSTRACT

The objective of this work is to find the influence of fiber content, stacking pattern, and their sequence on the mechanical properties of hybrid composites. Hybrid composites in four varieties with five laminae containing different stacking sequences of jute/madar/glass fibers were fabricated using hand-layup technique with glass fiber woven mats as their skin layers that just enclose bio-fibers oriented horizontally. The stacking sequences were GJMJG, GMJMG, GJGJG and GMGMG where G, J, and M represents glass fiber mats, jute, and madar fibers, respectively. The fibers in the core layer were oriented perpendicular to the enclosing adjacent plies and they may be jute/madar fibers depending on the stacking sequence. Load Vs deflection curves show that stress and strain were linear and all the samples fail abruptly except the sample that contains high proportion of madar fibers. Jute fiber layers imparted more strength and energy-absorbing capacity, whilst madar fiber layers imparted more strain and toughness to the composites. Studies showed that intercalation of glass fiber mats as the core and skin layers exhibited a significant effect on the mechanical properties of the composites than other samples. The morphology of the fractured samples exhibited compatibility between matrix and reinforcements.

摘要

本研究旨在探讨纤维含量、堆积方式及排列顺序对杂化复合材料力学性能之影响. 采用手工铺层技术,以玻璃纤维编织垫为表皮层,将水平取向的生物纤维包裹起来,制备了4个品种、5层不同铺层顺序的黄麻纤维/马达尔纤维/玻璃纤维混杂复合材料.堆叠顺序为GJMJG、GMJMG、GJGJG和GMGMG,其中G、J和M分别代表玻璃纤维垫、黄麻和马达尔纤维. 芯层中的纤维垂直于包围的相邻层,根据堆叠顺序,它们可能是黄麻/马达尔纤维. 载荷-挠度曲线表明,试样的应力应变呈线性关系,除含有高比例madar纤维的试样外,其余试样均发生了突然破坏. 黄麻纤维层赋予复合材料更多的强度和能量吸收能力,而madar纤维层赋予复合材料更多的应变和韧性. 研究表明,玻璃纤维毡作为芯层和表皮层的插层对复合材料的力学性能有显著影响. 断口形貌显示基体和增强体之间存在相容性.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

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