All articles
817 articles
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A Study of The Performance of surface modified NACA 2416 Airfoils at various Angles of Attach at Re80000
Abstract: This study delves into the aerodynamic effects and characteristics of surface-modified NACA 2416 airfoils, placing a greater emphasis on the aerodynamic efficiency of a two-dimensional surface-modified NACA 2416 airfoil under subsonic flow conditions at Re=80000 and various angles of attack (AOAs). The surface-modified airfoils were crafted using CATIA V5, and simulations were conducted in ANSYS Fluent for angles of attack ranging from 0° to 12°.The CFD results encompass a broad …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 34–39 Read article
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Effect of Compressive Strength of Core and Precast Concrete on the Behavior of Column Retrofitted by Precast Segment and FRP Wrapping - A Finite Element Study
Abstract: In the present investigation the effect of compressive strength of core and precast concrete on the behavior of columns retrofitted by attaching precast segments and followed by FRP wrapping through Finite Element Analysis. A rectangular column converted into an elliptical column by attaching precast segment is modeled using ANSYS workbench, A Finite Element Analysis software. A Finite Element Model is developed, considering various structural parameters such as grades of core …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 302–310 Read article
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Properties and antimicrobial activity of bacterial nanocellulose composite incorporated with silver nanoparticles based on green synthesis
Abstract: Green silver nanoparticles (AgNPs) synthesized using medical plant extracts as capping and reducing agents demonstrate broad applicability in addressing the threat posed by infections. In this study, we present a sustainable, low-toxicity, and cost-effective bacterial nanocellulose composite with silver nanoparticles based on green synthesis that uses Origanum vulgare as a reducing agent due to numerous biological components. The formation of AgNPs in composite and morphological properties was analyzed using scanning …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 323–328 Read article
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Computational investigation of the influence of process parameters of 3D printed PLA material
Abstract: This study uses numerical simulation to examine the relationship between critical process parameters say, feed rate, layer height, and raster angle, on residual stresses and distortions and on the achievable density of FFF prints to identify the optimal input parameter combinations for ISO 527-2 type 1A. Methods of additive manufacturing that are utilised widely used to manufacture thermoplastic parts is fused filament fabrication. High residual stresses are one of the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 259–269 Read article
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Detecting the Failure Stages in Asphalt Concrete Through the Fatigue Life
Abstract: The signs of failure initiation in asphalt concrete through its service life may appear as cracking, rutting, or other types of distress after practicing dynamic stresses from vehicular loading. This work is concerned with detecting the failure initiation in asphalt concrete in the laboratory, and the role of binder content and constant strain level through a comprehensive testing program. Asphalt concrete mixtures were formulated with the optimal binder content, as …
Published in Trends in Transport Engineering and Applications · Vol. 11, Issue 1, 2024 · pp. 21–27 Read article
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Rheological behaviour analysis of prepared nano-cutting fluids from Al2O3 and TiO2
Abstract: In this research paper, an attempt has been made to characterize and analyse the rheological properties of two samples of nano-cutting fluids. Nanoparticles of Al2O3 and TiO2 were characterized by SEM and EDS. The high peaks showed the respective presence of aluminium, oxygen for alumina and titanium and oxygen for titanium dioxide. The two samples of nano-cutting fluids were prepared. Alpha alumina, α-Al2O3 nanoparticles were used for the preparation of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 329–338 Read article
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Application of Artificial intelligence in Single Point Incremental Forming for Surface Roughness Prediction
Abstract: The sheet metal forming industries always try to find an emerging trend to form sheet-metal in a cost-effective manner. In this regard, a forming technique is trending termed as single point incremental forming (SPIF) in which a simple forming tool having hemispherical end rod is moving and simultaneously deforming the clamped metal sheet according to predetermined toolpath command and forms a complete shape. The achievement of required surface quality is …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 237–246 Read article
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Investigation of microstructure and mechanical properties of multi-pass friction stir processing on precipitation hardened aluminum alloy
Abstract: In the present study, multi-pass friction stir processing of aluminum AA2014-T651 alloy is per-formed with one and four passes. The multi-pass processing is performed at a tool rotational speed of 1000 rpm with a traverse speed of 63 mm/min. Microstructural characterization of fric-tion stir processed specimens indicated a significant grain refinement with equiaxed grains in the four pass specimen. Microhardness and tensile strength of the multi-pass specimen decreases with the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 339–349 Read article
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Service Life Enhancement: Exploring the Effects of Supplementary Cementitious Materials on RC Structures in Marine and Urban Contexts
Abstract: Reinforced concrete (RC) structures stand as the cornerstone of modern construction due to their cost-effectiveness and widespread availability. The most predeterminant factor for the deterioration of RC structure is due to the corrosion of reinforcement. This review paper comprehensively explores the occurrence and degradation mechanism of reinforced concrete (RC) structures when exposed to adverse environmental conditions, i.e., marine, or urban environments. Corrosion of reinforcement takes place when RC structures are …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 247–258 Read article
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Analysis of Sound Transmission Loss in Hybrid Mufflers for Automotive Applications
Abstract: An exhaust system's noise level can be reduced with the use of a muffler. There is general recognition that baffled exhaust mufflers reduce noise emissions and increase the loss of sound transmission. The reduction of sound transmission can be further achieved by inserting sound-absorbing materials inside the muffler. Exhaust muffler systems with strategically positioned baffles have been shown to effectively reduce noise emissions, thereby improving acoustic performance. Baffles divert and …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 314–322 Read article
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Axial Compression Behavior of Aluminum (Al), Glass/Epoxy (GFRP) and Hybrid Al-GFRP Crash-box: An Experimental and Digital Image Correlation Approach
Abstract: The study aims to understand the axial compression characteristics and fracture of cylindrical Aluminum (Al), Glass/epoxy (GFRP) composite and Hybrid Al-GFRP crash-boxes. The hollow Al tubes are fabricated by rolling and bonding a thin aluminum sheet followed by rivet joints. The GFRP samples are manufactured using the wet-hand layup technique followed by the vacuum bagging method. Hybrid samples are manufactured by covering GFRP tubes with aluminum sheets on the outer …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 304–313 Read article
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Experimental Investigation of Hardness of FSW Al 5083 Alloy for Naval and Marine Application
Abstract: Friction stir welding (FSW) is a relatively novel method of solid-state joining. This connecting method is adaptable, environmentally benign, and low-energy. The present study focuses on hardness testing on welded butt joints, introducing the Friction Stir Welding procedure on aluminium alloys Al 5083, which are known for their remarkable performance in severe conditions. It is widely used in naval and marine applications due to its excellent resistance to seawater damage. …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 227–236 Read article
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Evaluation of microstructure properties and characterization of fracture locus of AA5083 through equal channel angular pressing techniques
Abstract: In this investigation, a commercially available aluminium alloy called AA5083 was subjected to two passes of equal channel angular pressing utilising a route B_C at room temperature for this experiment. To evaluate the effect of AA5083, the microstructure, mechanical attributes, and wear parameters of the alloy were examined both prior to and subsequent to undergoing this technique. Using an optical microscope, microstructural investigations were performed on the pressed alloy's flow …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 270–286 Read article
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Deformation Behaviour of the Billet and Tooling Design on AA5083 through Equal Channel Angular Pressing With Effect of Back Pressure
Abstract: Equal channel angular pressing is an emerging method applied to subject materials to significant plastic strains while maintaining the original shape of the billet. Researchers have discovered that the level of strain attained through equal channel angular pressing is influenced by factors such as the angle of die, friction conditions, and the implementation of back pressure. These variables significantly impact the microstructure and the irregularity of strain within the billet …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 287–303 Read article
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A Review of Recent Advancements in the Field of Friction Stir Welding of Dissimilar Joints Made of Aluminium and Magnesium
Abstract: Friction stir welding (FSW) stands at the forefront of welding technology, offering a promising avenue for joining dissimilar metals like aluminum and magnesium. These metals, renowned for their exceptional properties such as ductility, thermal conductivity, low density, and impressive weight-to-strength ratios, find wide utility across numerous industrial sectors. However, traditional fusion welding methods often struggle to effectively join aluminum and magnesium due to their disparate physical and chemical characteristics. FSW …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 134–142 Read article
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Impact of Tool rotating speeds on the Mechanical characteristics of dissimilar friction stir-welded AZ80A-Mg – AA6061-Al joints
Abstract: In this investigation, separate AA6061-Al and AZ80A-Mg alloy plates were effectively joined through stir welding with friction. We looked closely at the weld joints' characteristics, especially their mechanical aspects. In the experiment, here were multiple tool rotating rates (rpm) of 800, 1000, 1200, 1400, and 1600 used. A cylindrical pin-equipped tool featuring a tapered profile was utilized, inserted into the AA6061 alloy plate is offset by 0.5 mm, while maintaining …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 161–168 Read article
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Advancements in graphene reinforced metal matrix composites: A comprehensive review
Abstract: The Present pollution norms insist automobile manufacturers to make use of ultra-high specific strength materials i.e., materials ahead of conventional metal matrix composites (MMCs) with micro-sized reinforcements. With the advent of nanomaterials, nanocomposites are being developed with properties that overcome the limitations for metals or composites with micro-sized reinforcements. In recent years, the family of graphene-based materials, in particular, graphene nanoplatelets (GNPs) reinforced MMCs offering promising solutions to revolutionize the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 177–189 Read article
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Service Life Prediction of Concretes Incorporated with Ground Granulated Blast Furnace Slag and Icrete with respect to Chloride Ion Penetration
Abstract: The reduced service life of concrete structures in coastal or de-icing salt conditions is commonly attributed to corrosion generated by chloride. Therefore, extensive research is being conducted to estimate the time taken for threshold chloride ions to reach the reinforcement and break the protective layer, initiating the corrosive process. This study conducted an experimental investigation on controlled concrete, concrete incorporating 50% GGBS, and concrete incorporating both 50% GGBS and 2% …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 214–226 Read article
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Service Life Prediction of Concretes Incorporated with Fly Ash and Alccofine with respect to Chloride Ion Penetration
Abstract: Chloride-induced corrosion poses a significant threat to the degradation of reinforced concrete structures, especially in extreme environments such as marine and industrial exposure conditions, where the damage can be particularly severe. This study provides an experimental investigation utilizing three distinct water-binder ratios (0.3, 0.4, and 0.5) applied to three types of concrete mixtures: conventional concrete, concrete blended with 40% fly ash, and concrete blended with 40% fly ash and 2% …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 202–213 Read article
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Comparative Analysis of Dip and Spray Techniques with Ethanol, Polyvinyl Alcohol, and Acetone Hydrophobic Glass Slides with Al2O3 Coating
Abstract: The hydrophobic effects of Al₂O₃ coatings on glass slides are investigated in this work by comparing dip and spray procedures using three distinct solvents: acetone, polyvinyl alcohol (PVA), and ethanol. Using both dip and spray techniques, the experimental design systematically applies Al₂O₃ coatings on glass slides. Then, the effect of the chosen solvents on hydrophobicity is investigated. Delineating the complex interaction between coating processes and solvent options requires careful analysis …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 45–51 Read article