Lakshmanan Palanimuthu

Bio: Lakshmanan Palanimuthu is an academic researcher. The author has contributed to research in topics: Composite number & Epoxy. The author has an hindex of 2, co-authored 3 publications receiving 12 citations.

Influence of Stacking Sequence on Mechanical Properties of Areca-kenaf Fiber-Reinforced Polymer Hybrid Composite

Abstract: Hybrid laminates made using natural fibers have been finding applications in diverse fields such as automotive parts, building structures and sports goods. These laminates incorporate the benefits ...

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

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 wit

Experimental Investigation on Mechanical Properties of Glass Fiber Hybridized Natural Fiber Reinforced Penta-Layered Hybrid Polymer Composite

Abstract: This article investigates and presents the upshots observed in the brook of hybrid composites especially, the current investigation focuses on the impact of fiber composition, sequence, and stacking pattern on composite mechanical Features. Five varied stacking sequences of hybrid composites encompassing laminates are used to create four classes of fiber with jute/bamboo/glass by utilizing a conscientious hand lay-up process with glass fiber-laced mats as their peripheral layer. For examination, fiber sequences are arranged in the combination of GJBJG, GBJBG, GJGJG, and GBGBG, where G, J, and B refer to glass fiber, jute fiber, and bamboo fiber, respectively. The position of fiber in the core layer is kept in a perpendicular direction with respect to adjacent piles which might be jute or bamboo fiber and the best position of fiber is considered due to the stacking order. Stress and strain were linear in the load versus deflection curves, and all of the samples failed quickly, it is observed that the sample containing a higher or considerable number of bamboo fiber layers exhibited increased strain and toughness. In comparison to other samples, embolism of glass fiber as the main and covering layer expressed a higher impact on the mechanical properties of the composites is observed in this investigation. The shattered sample morphology demonstrated that the matrix and reinforcements were compatible.

Dynamic mechanical properties of natural fiber reinforced hybrid polymer composites: A review

Abstract: The concerning waste management issue of natural fibers and the downsides of synthetic fibers have governed natural fibers' utilization as reinforcements in composites. Incorporating a single type of reinforcing fiber does not inevitably produce composites that meet exceptional quality standards, particularly in dynamic mechanical properties. Various studies have demonstrated excellent properties of natural fiber reinforced hybrid composites. Accordingly, this paper aims to review research related to natural fiber reinforced hybrid composites that emphasize the dynamic mechanical properties. A summary for each type of hybrid composites, including thermoset and thermoplastic polymers, biopolymers, nanocomposites, and bionanocomposites was provided. The variables of relevance in this overview are the loss modulus, storage modulus, damping factor, and glass transition temperature. Overall, the reviewed works revealed that lignocellulosic fibers are extensively used to reinforce composites. Nearly all hybridization of multiple reinforcing fibers had synergistic influences on the hybrid composites' dynamic mechanical properties. However, there are several cases whereby the addition of hybrid reinforcing particles leads to a detrimental effect on the composites’ quality. There is a limitless possibility for further improvements of natural fiber reinforced hybrid composites.

Experimental investigation of the quasi-static and dynamic axial crushing behavior of carbon/glass epoxy hybrid composite tubes

Abstract: The energy absorption characteristics of fiber-reinforced composite tubes subjected to axial quasi-static and dynamic crushing were investigated in this research. The influences of fiber volume proportion, ply angle, and loading rate on the specific energy absorption (SEA) were discussed. The SEA of satin weave/carbon unidirectional tape hybrid tubes was more pronounced compared with that of glass weave/carbon unidirectional tape tubes in quasi-static and dynamic tests. The SEA of both tubes was rate insensitive in dynamic tests (7.2 m/s, 10.2 m/s), but the rate effect was remarkable under quasi-static loading (10 mm/min, 600 mm/min). For glass weave of 759/5224 tubes, and carbon unidirectional tapes of G827/5224 tubes with different ply angles and loading rates, the 759/5224 tube shows superior energy absorption capability, and the loading rate effect was observed in quasi-static loading. Finally, the highest mean-load and SEA were obtained when the 759 glass fiber ply angle was equal to 30°, while the lowest energy absorption was observed when the orientation of the 759 fiber plies was ±45°.