Materials have helped in evolving technology to a great extent. Composites have replaced conventional metals/non-metals because of their lightweight. Natural Fibres have been need of the hour owing to environmental concerns and ease of availability. In this work, Cannabis Sativa fibers were treated with 5% Potassium Hydroxide solution. The laminates were prepared by the Compression Moulding technique by reinforcing treated and untreated fibers with an epoxy matrix material. To access the durability of natural fiber composites in the marine environment, prepared laminates were aged in seawater for 150 days. Tensile, flexural and moisture absorption behavior tests have been performed to estimate the durability in seawater. The data obtained have been compared with pristine treated and untreated fiber reinforced samples. From the results, it has been observed that tensile and flexural behavior of untreated fiber reinforced composites were superior to a treated counterpart in both pristine and aged conditions.
The purpose of developing an automobile was to reduce human effort, travel faster, and cover longer distances. Cars were meant for transporting a small number of people from one point to another. In India, the four-wheeler segment has picked up over the years due to economic liberalization. The vehicles have been undergoing constant improvements. This may be either in the design or the final product. Also, the importance of aerodynamics is a crucial factor considered while designing a vehicle. This study focuses on improving the aerodynamics of the side-view mirror and reducing the blind spot region. The side mirror of Toyota Etios Liva was used in this study. Blind spots were first determined, and the mirror drag is analyzed experimentally in a wind tunnel and numerically using commercial software. The results show that the drag value of the new mirror was 0.449 compared to 0.634 of the original mirror. This work helps to reduce the blind spot region of the car considered for the study.
Reinforcement of metallic and non-metallic particulates will enhance or improve the tribological and mechanicalproperties of metal matrix composites. In the present study, Aluminium 6061 was reinforced with agro-waste based novel Squid Quill Ash (SQA) and Boron Carbide (B4C) by employing a stir casting process. Sliding wear behavior of Al/B4C/SQA hybrid composites investigated by varying SQA content (0.5%, 1%, and 1.5%), sliding speed (400,500 and 600 RPM), and applied load (10,20 and 30 N) using Pin on Disc apparatus. Experiments were performed based on Taguchi L27 orthogonal design. The role of control parameters on wear rate was estimated using the Analysis of variance method. Statastical analysis showed that applied load has a significant effect on the wear rate of the hybrid composites followed by SQA content and Sliding Speed. Material removal during wear test mainly due to the combined effect of formation of cracks, abrasion, and grooves on the target surfaces.
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