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  • Articles  (28,225)
  • Institute of Physics (IOP)  (28,225)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (28,225)
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  • 1
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    Experimental Investigation of Heat Transfer and Pressure drop Characteristics by using twisted tapes of different Twist ratio (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: There are many engineering application that involve heat transfer process, such as solar power collector, thermal power plant, drying agriculture products and many more. All these applications need effective heat transfer. This requires a need of more effective heat transfer with the minimum frictional loss. In view of this an experimental set-up has been built up and experimental investigation has been performed to study the heat transfer and pressure drop characteristics of air flow through circular pipe. Obtained experimental results through smooth tube are validated with Blasius correlation and Petukhov correlation for friction losses and Dittus-Boelter’s correlation, Petukhov’s correlation and Gnielinski’s correlation for Nusselt number. Further, to study the pressure drop and heat transfer characteristics an experimental study has been performed by inserting twisted tapes with and without triangular baffles attached on twisted tapes of twist ratio of 3.8, 3 and 2.6(p itch ...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 2
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    Experimental Analysis of Fibre Metal Laminates (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: Aircraft structures are prone to impact damages and one of the several methods to overcome this, is to use Fibre Metal Laminates in the construction of structures. Fibre Metal Laminates is a new class of advanced aerospace materials. They consist of thin metallic sheets bonded together with fibre reinforced adhesive matrices. In this work, strength characteristics of fibre metal laminates and fibre laminates are studied and compared as follows; Case I - Fibre metal laminate (Top & Bottom layers of 0.3 mm thick aluminium alloys sheets + 5 layers of (0/90/0/90/0) cross ply glass fibre laminates) is compared with 7 layers of (0/90/0/90/0/90/0) crossply glass fibre laminates and Case II - Fibre metal laminate ( Top & bottom layers of 0.3 mm thick aluminium alloy sheets + 7 layers of (0/90/0/90/0/90/0) crossply glass fibre laminates) with 9 layers of (0/90/0/90/0/90/0/90/0) crossply glass fibre laminates. The specimens are fabricated such that the seven layers FML and seven l...
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 3
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    Evaluation of Effective Elastic Moduli Using Micromechanics (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: In this work, a direct approach is done to predict the accurate elastic properties of particulate composites containing and fibrous composites. To predict the elastic modulus, poisson’s ratio and shear modulus, the empirical formulas like rule of mixtures, Halpin T-sai equation were taken into consideration. Properties were also determined using analytical methods like Eshelby scheme, Mori-Tanaka scheme, Self-Consistent scheme and combined approach of Mori-Tanaka and Self-Consistent schemes. The predicted properties were compared with the experimental data available from literature. Simulation was carried out for aluminium alumina particulate composites and also for boron epoxy unidirectional composites. Combined approach given by Peng et al [1]. has been used and its effectiveness has been shown.
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  • 4
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    Prediction of pressure drop for the flow of zinc ore-water suspension in horizontal pipeline (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: Present study was focused on the flow characteristics of zinc ore water suspension. The solid concentration was varied in the range of 30-60% (by weight). The rheometer is used to study the flow behaviour of slurry suspension. The slurry exhibits Non-Newtonian behaviour at solid concentration of 30%. Whereas at higher solid concentrations slurry shows Bingham flow characteristics. The increase in temperature shows significant effect reduction of apparent viscosity. Fanning equation was used to predict the pressure drop in horizontal pipe. From the results it was noticed the pressure drop was increased with solid concentration and flow velocity.
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 5
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    Analytical Study on Flexural Behaviour of Reinforced Geopolymer Concrete Beams by ANSYS (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: The present investigation embodies the flexural behavior of Reinforced Geopolymer Concrete (RGPC) beams with different percentages of GGBS and Metakaolin cured under ambient temperature with 10 molar NaOH. Twelve reinforced concrete beams of size 700 mm x 150 mm x 150 mm were tested. The beams were tested under two point bending system over an effective span of 700 mm. The behavior was studied with reference to ultimate load. The results were found to be similar to that of conventional cement concrete reinforced beams.
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  • 6
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    Mechanical, Thermal and Morphological Properties of Sisal Fibres (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: Natural fibres are gaining attention day by day in industrial applications. The aim of current investigation is to enhance the performance of sisal fibre by its surface modifications. The surface modifications include alkali treatment with varying concentrations (2, 5, 10, 15 & 20 %) and coating of PLA with varying concentrations (2, 4, 6, 8 & 10 %). Treated and untreated sisal fibres were subjected to tensile test and thermo gravimetric analysis (TGA). In addition to this, sisal fibres were characterized by X-ray diffraction (XRD), and its structural morphology was studied by scanning electron microscope (SEM). Moreover, FTIR spectroscope analysis was also carried out to see the removal of hemicelluloses and lignin from sisal fibre by alkali treatment. It was observed that surface modifications had much influenced the performance of sisal fibre. On other hand, PLA coated fibre had a better performance than alkali treated fibre.
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  • 7
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    Design and Development of Automotive Carbon Fiber Bracket (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: Carbon Fiber is a polymer and is once in a while known as graphite fiber. It is an exceptionally solid material that is additionally extremely lightweight. Carbon fiber is five-times more grounded than steel and twice as solid. Despite the fact that carbon fiber is more grounded and stiffer than steel, it is lighter than steel; making it the perfect assembling material for some parts. These are only a couple of reasons why carbon fiber is supported by architects and planners for assembling. Carbon fiber is made of thin, solid crystalline fibers of carbon that is utilized to fortify material. Carbon fiber can be more slender than a strand of human hair and gets its quality when wound together like yarn. At that point it can be woven together to frame fabric and if necessary to take a changeless shape, carbon fiber can be laid over a form and covered in pitch or plastic. In this paper, diverse car Carbon Fiber Component made out of cutting edge composites are given and talk...
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  • 8
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    Enhancement of Mechanical properties of AlSi5Cu3 Aluminum alloy using TiB 2 reinforcements (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: In present investigation, ex situ composite of AlSi5Cu3 aluminum alloy reinforced through TiB 2 reinforcement particles has been developed. Different weight percentage of TiB 2 particles were incorporated in liquid melt via stir casting method. Combine effect of stirrer speed (500,700 rpm), and weight percentage (1, 2, 3) TiB 2 particle on mechanical properties were studied. Microstructural study has been carried out using optical microscopy and SEM analysis, which shows homogeneous distribution of particles and improvement in grain size compare to aluminum alloy AlSi5Cu3. Presence of TiB 2 was confirmed using XRD analysis. Improvement in tensile strength and hardness was observed due to homogeneous distribution of particles.
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  • 9
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    Comparison of machining characteristics of Inconel 601 with Brass and Graphite electrode in EDM using Response Surface Methodology (RSM) (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: Nickel-based super alloy (such as Inconel) is widely used in aerospace, nuclear, and chemical industries because of its excellent mechanical and chemical properties at elevated temperatures. Inconel comes under the category of “diffcult-to-cut” materials. In the present case, an experimental investigation on assessing machining performance during EDM of Inconel 601 has been delineated herein. Attempt has been made on evaluating optimal machining parameters setting to achieve satisfactory machining yield. A Box–Behnken design of response surface methodology has been adopted to es timate the effect of machining para meters on the response. Experiments have been carried out by varying gap voltage, peak current, pulse-on time (each varied at three discrete levels) to examine the extent of machining performance in terms of material removal rate using Brass and Graphite electrode.
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  • 10
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    Polymeric feedstock from post-consumer and post-industrial plastic wastes for automotive interior applications (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-12-20
    Description: In this study, an economically-viable methodology is discussed where a blend of post-consumer recycled (PCR) plastics and post-industrial scrap (PIS) polymers is refined and used as the feedstock for manufacturing of interior structural products for automotive industry. A comprehensive thermo-mechanical characterisation suggest that feedstock obtained using a melt-filtering based refining process, offers performance on par with the virgin materials with reduced cost and environmental impact. Using both lab-scale prototyping and pilot plant trials, interior trim parts have successfully been produced to demonstrate the viability of using this new feedstock in mainstream polymer production processes such as injection moulding and thermoforming for automotive applications.
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