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1275 articles for “Important”
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Thermal Analysis of I.C. Engine Poppet Valve Using FEM: A Review
Abstract: Abstract: Inlet and outlet valves in I.C. Engines are referred to as poppet valves. These valves are operated by the valve mechanism. When these valves are uncovered to the heat thermal stresses are evolved in order that thermal evaluation is very important to predicting and stopping failures in valves. The foremost position of the valve train is to ensure the gases change manner for all the engine speeds. The valve …
Published in International Journal of Composite Materials and Matrices · Vol. 4, Issue 1, 2018 · pp. 30–37 Read article
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Strain Based Approach to the Fatigue Evolution Modeling of Concrete under Tension-Tension Loading
Abstract: Abstract: Strain based Approach to the Fatigue Evolution Modeling of Concrete under Uniaxial Tension-Tension Loading plays a very important role in the evaluation of the material properties of concrete utilizing strain analysis methods, the nonlinear fatigue strain evolution model is proposed, and the hypothesis of recycle ratio related fatigue strain amplitude causes stiffness degradation and inelastic deformation is briefly described which are the essential material properties of concrete. This paper …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 1, 2019 · pp. 36–56 Read article
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Synthesis , Characterization and Biological Activity of Schiff base Derived from Sulphanilamide and Salicylaldehyde and Its Metal Complexes
Abstract: ABSTRACT : Schiff bases are important intermediates for the synthesis of various bioactive compounds. However, various studies have shown that Schiff bases derived from biologically active ingredients present in medicinal plants are more effective in biological and medicinal activity than in its pure form. In this paper K(I), Ni (II), Mg (II), Cd (II) and Pb(II) Complexes were synthesized from Schiff bases derived from sulphanilamide and Salicylaldehyde. The ligand and …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 1, 2019 · pp. 21–29 Read article
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3D printing of polymers by fused deposition modeling (FDM): filament ink to composite materials
Abstract: 3D printing technology has gained significant attention for its rapid manufacturing of on-demand customized objects from digital computer-aided design (CAD) model without need molds or machining. Polymers are the most utilize a class of commercial materials in additive manufacturing (AM) because of excellent physico-mechanical properties with desired objects. Fused deposition modeling is the filament based printing process which most widely popular for commercial thermoplastics polymer than other manufacturing techniques because …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 1, 2019 · pp. 1–14 Read article
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A-Survey on Natural Fibers
Abstract: In the last thirty years of composite materials, ceramics and plastics have been important emerging materials. The number of application of composite materials has been grown consistently, penetrating and winning new market requirement continuously. The composite materials forms a significant proportion of the engineered materials their worth as weight saving materials; the present aim is to make them as cost effective. This survey paper discuss about worldwide collection of natural …
Published in International Journal of Composite Materials and Matrices · Vol. 6, Issue 1, 2020 · pp. 17–28 Read article
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A Model for Plastic-Hydrolytic Damage Bioresorbable Polymer Composites
Abstract: This paper explains and assesses a recently developed constitutive model for elastic-damage that may sustain plastic-hydrolytic damage. When a metallic material is subjected to plastic strain, voids and microcracks in the metal matrix start to form, develop, and merge. This is what causes ductilitydegradation in metals. Only a few of the many models that have been presented to depict ductile failure have done a thorough analysis of the entire damage …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 23–27 Read article
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Synthesis of Bromobutyl Rubber: Effect of Reaction Temperature and Time on Bromobutyl Rubber Microstructure
Abstract: Butyl rubber is prepared by cationic polymerization process either by solution or slurry phase by randomly copolymerizing isobutylene with small amount of isoprene (1-3 mol %). It has good air impermeability and oxidative stability and thus finds extensive use in inner tube applications. The presence of unsaturation in the form of isoprene units in butyl rubber provides a means of enhancing useful properties of this important commodity elastomer by incorporation …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 30–39 Read article
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Environment Friendly, Exterior Grade Resin Adhesive from Phenol-Animal Glue Formaldehyde (PGF)
Abstract: Phenoplast and aminoplast based resins are the important adhesive for the manufacturing of marine grade, shuttering and moisture resistance plywood. Environmental concerns and higher cost of petroleum based resins have resulted in the development of technologies to replace phenol partially by biomaterials for the manufacturing of resin adhesive. Natural bio-based materials such as tannin, CNSL (cardanol), lignin soya etc. are used as partial substitution of phenol. This paper presents the …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 · pp. 16–22 Read article
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Manufacturing of BWP-Grade Plywood from Resin Adhesive Using Animal Protein (Glue) by Partial Replacement of Phenol
Abstract: Abstract This paper presents the development of plyboard using phenol–glue–formaldehyde (PGF) resin and their basic mechanical properties. Phenoplast and aminoplast-based resins is the important adhesive for the manufacturing of boiling water proof (BWP) grade, shuttering and moisture resistance plywood. Environmental concerns and higher cost of petroleum-based resins have resulted in the development of technologies to replace phenol partially by biomaterials for the manufacturing of resin adhesive. Natural bio-based materials such …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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A Review on Processing of Waste PET (Polyethylene Terephthalate) Plastics
Abstract: Solid waste is essentially waste produced in our homes, businesses and industrial sources. Globally waste production is growing in volume and in toxicity. Plastic waste is a nature threat that is of great concern to the researches to refuse and reuse. The man-made systems emphasize the economic value of materials and energy where production and consumption are the extensive economic actions. Such systems are a threat to the environment as …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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Design and Simulation of Single Phase Five Level Inverter for a Novel Solar PV Hybrid Energy System
Abstract: Abstract - In current global energy scenario, renewable energy sources can play an important role in meeting the ever increasing energy demand. This is due to exhaustive nature of fossil fuels and the environmental pollution caused by other conventional energy sources. Among renewable energy sources, solar photo-voltaic system is the most popular one as solar energy is available in abundance without paying any cost. The output voltage generated from the …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 1–9 Read article
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MODELLING OF SAW PARAMETERS AND ITS MECHANICAL PROPERTIES FOR JOINING STRUCTURAL STEELS
Abstract: Ethiopia nearly 85 per cent of people is morality depends on agriculture; the government of Ethiopia emphasis on Farm Mechanization for bringing the improvement in crop production using modern equipment and tools. However, the Modern equipment development needs improved machineries for fabrication. Moreover, the metal joining technology; like Submerged Arc Welding (SAW) available is very advance and made welding of thicker plats and welded structures. Therefore, while using this modern …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 34–43 Read article
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Experimental Investigation of Visco-Elastic Behavior for Ecovio F Film C2203 Biopolymer Melts
Abstract: The visco-elastic behavior of biopolymers fluid are significantly interested in their internal structure, thus, it has been experimentally investigated for various industrial applications. This paper studies the characterization of (Ecovio F Film C2203) biopolymer because of their characteristics and importance in different fields of environment and health. Two form of rheometers instruments have been used at temperatures between (140 - 220) ˚C to describe the visco-elastic behavior of (Ecovio F …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 24–33 Read article
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A Detailed Lumped Model for Vinyl Acetate Emulsion Polymerization
Abstract: Abstract A mathematical model was developed to simulate emulsion polymerization of vinyl acetate monomer in isothermal, batch and semi-batch reactors. The recipe components included monomer (vinyl acetate), initiator (potassium persulfate), surfactant (sodium dodecyl sulfate) and water as the dispersion medium. The two important phenomena, particle nucleation and particle growth, were modeled in adequate detail. The mechanistic details included: particle formation via micellar nucleation; coupling of the radical concentration in the …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 1–12 Read article
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Synthesis of Biodegradable Nano Composite of PMMA vinyl Polymer with Corn Cob
Abstract: Vinyl polymers are the largest category of polymers which have wide applications. PMMA is important vinyl polymer which when modified with with Corn Cob(agricultural waste) for nanocomposite formation, then it may result biodegradable modified polymer. Corn cobs (focal piece of maize) are either treated as waste or consumed as fuel causing ecological concern. So as to accomplish its worth option in new research regions, corn cob can be prepared synthetically …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 1, 2020 · pp. 20–24 Read article
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Roller Burnishing Process on Surface Hardness
Abstract: Roller burnishing is the procedure which produces a fine surface finish by the planetary rotation of hardened roils over a bored or turned metal surface. Roller burnishing involves plastic deformation of the surface of the work piece to improve surface structure. The most important parameter describing surface integrity is surface roughness. A detailed experimental program was used in this study where specimens were subjected to various levels of feeding speed …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 14–17 Read article
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To Analyze and Study CNC Lathe in Turning Machining Parameters
Abstract: Metal matrix composites (MMCs) consists an important class of design which have weight-efficient structural materials that are inspiring every field of engineering applications. There has been an increasing interest in composites containing low density and low-cost reinforcements. Among various discontinuously dispersed solids used, alumina is one of the most inexpensive and low-density reinforcement available in large quantities as solid waste by-product during combustion of coal in thermal power plants. Hence, …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 2, 2017 · pp. 24–29 Read article
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Design and Analysis of Centrally Suspended Cage-less Limited Slip Differential
Abstract: Limited slip differential (LSD) plays an important role in maintaining speeds and in torque distribution between the wheels of the automobile even in case of variable traction. In the present project work, limited slip differential is considered and the objective of the project is to find out tangential, axial and radial forces involved in meshing of the differential gears theoretically. Finite Element Analysis (FEA) is carried out on Final, Crown, …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 2, 2019 · pp. 11–23 Read article
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Fabrication of Grain Cleaning Machine
Abstract: Agriculture plays a significant role within the Indian economy. Indian agriculture is on the horizon and one in every of the foremost challenges is to reverse the decline in agriculture. The post-harvest cereals contain various amounts of non-grain (MOG) materials like stone, pod, trunk and trash. MOG classification is very important to boost the standard of the food. The development of the grain separation machine produces a review of previous …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 1, 2020 · pp. 17–20 Read article
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Experimental Investigation of Three Pass Helical Coil Heat Exchanger Keeping Constant Mass Flow Rate of Tube Fluid
Abstract: Heat exchanger is an adiabatic steady flow, open system in which two flowing fluid exchange or transfer heat without loosing or gaining any to the ambient. Heat exchangers are the important engineering systems with vast variety of applications including power generation, heating ventilation and air conditioning systems, nuclear, heat recovery systems, food and paper industries and many more. Helical coil structure configuration is very effective for heat exchangers because it …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 2, 2020 · pp. 17–22 Read article