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18 articles for “Coefficient of friction”
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Experimental Study and Analysis of Coefficient of Friction for Mild Steel Under Various Lubrication Conditions
Abstract: The coefficient of friction plays decisive role in the metal-forming processes. This study focuses on determination of the coefficient of friction between work piece and lubricants using ring compression test by experiments physical modeling and finite element (FE) simulation. A series of ring compression tests were carried out to obtain friction coefficients of mild steel under lubricants including boric acid, Vaseline, grease and dry conditions. According to Male and Cockcroft …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 34–42 Read article
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Investigation of Tangential Shear Stress and Frictional Torque Coefficient over a Rotating Disk of the Rotor-Stator System
Abstract: Abstract The study investigates the prediction of tangential shear stress and the frictional torque coefficient over a rotating disk in a rotor-stator system under laminar inward flow conditions. The interaction between the rotating and stationary disks is governed by key parameters, such as volumetric flow rate, rotational speed of the disk, and the axial clearance between the two surfaces. These parameters are expressed in terms of dimensionless quantities, including the …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 11, Issue 1, 2025 · pp. 6–14 Read article
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Study the effect of lubrication on hardness in the ring compression test
Abstract: Mild Steel is commonly used to produce automotive parts such as shafts, gears and bearings. This paper focuses on the hardness distribution in the mild steel ring specimen after compress under rigid dies. Three different types of lubricants namely boric acid, Vaseline, grease and dry condition were employed as lubricants and the coefficient of friction corresponding to the lubricant evaluated using standard ‘Ring compression test’. The strain distributions obtained from …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 2, 2019 · pp. 18–27 Read article
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Essential of bearing in materials engineering
Abstract: Essentials of bearing have been to maintain lubricant film to prevent metal to metal contact and hence local welding of two surfaces. Tribological and mechanical properties have improved by powder metallurgy route of bearing fabrications. Alloyed non-ferrous plane bearings have better friction coefficients than pure metals. Betterment has appeared in babbit/ bronze particulate reinforced composites. Ni addition has improved performances of graphite-lead free tin bronze composite layers on surface of …
Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 1–17 Read article
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Optimization of Wear Parameters for Medical ImplantApplications
Abstract: The purpose of the present research is to check the capability of SS 304 for the application of medicalimplants and describe the influence of sandblasting process, applied load, frequency, and slidingdistance on the coefficient of friction of SS 304. In this research, attempts have been made to study thewear behavior of SS 304 under various conditions. In the tribology lab, a wear test was carried out inaccordance with the scheme …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 2, 2025 · pp. 1–10 Read article
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Optimization of Wear Parameters for Medical Implant Applications
Abstract: The purpose of the present research is to check the capability of SS 304 for the application of medical implants and describe the influence of sandblasting process, applied load, frequency, sliding distance on the coefficient of friction of SS 304. In this research, attempts have been made to study the wear behavior of SS 304 at various conditions. In the tribology lab wear test was carried out in accordance with …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 2, 2025 · pp. 1–10 Read article
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Finite Element Modelling and Structural 3d Static of the Mechanical Behavior of Dry Contacts Slipping Between the Disc and the Brake Pads
Abstract: The aim of this contribution is to present a study based on the determination of the structural deformations due to the contact of slipping between the disc and the pads. The results of contact described in this work relate to displacements, Von Mises stress and contact pressures of the pad at various moments of simulation. One precedes then the influence of some parameters on the computation results such as rotation …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 23–43 Read article
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CFD Analysis and Prediction of Shockwave/Boundary-Layer Interaction at Hypersonic Flows Using RANS Models
Abstract: Interaction of shockwaves with turbulent boundary layer plays an important role in the design and operability of high-speed aerospace vehicles and air-breathing engines. The adverse pressure gradient of the shock is often strong enough to separate the boundary layer. The objective of the present research paper deals with the analysis of hypersonic viscous flows dominated by strong shockwave/boundary-layer interactions (SWBLI) over wing-flap and wing-fuselage junction configurations. The effects of the …
Published in International Journal of Computer Aided Manufacturing · Vol. 5, Issue 2, 2019 · pp. 33–50 Read article
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Parametric Analysis of Reciprocating Friction and Wear Behavior of PTFE Composite.
Abstract: When filler materials like carbon, graphite, glass fibres are added in the PTFE, a composite is formed which improves mechanical & thermal properties of that composite. It increases hardness and wear resistance, while the coefficient of friction is slightly affected and remains low. In this survey, we study various papers in which various methods & experiments were carried out for calculating friction & wear resistance of various compositions of polymers. …
Published in International Journal of Computer Aided Manufacturing · Vol. 4, Issue 1, 2018 · pp. 55–61 Read article
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Preparation and Characterization of Double Step StirCusted Aluminum Hybrid Composite Reinforced with RHA and Si3N4 Micron Particles
Abstract: Abstract: The improvement of the mechanical and tribological characteristics of composites is always a crucial area of research for materials scientists. Nowadays, particulate aluminum matrix hybrid composites, known as particle-reinforced hybrid aluminum matrix composites (PHAMCs), are becoming more popular due to their desirable properties, cost-effectiveness, ease of processing, and compatibility withtraditional processing techniques. In this current study, a two-step stir casting method was utilized tocreate aluminum hybrid composites using Al6061 …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 Read article
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Field Assessment of Runway Pavement Surface Texture for Baghdad International Airport
Abstract: One of the major serviceability issues which reflects the suitability of the airport runway for serving international flights is the surface texture of concrete pavement. The concrete surface of the runway 33R-15L of Baghdad international airport is badly covered with large spots of aeroplanes tyre rubber. The international flight companies had claimed that the rough surface of the runway concrete pavement caused damage and deterioration to their aeroplane’s tyres. The …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 5, Issue 2, 2019 · pp. 6–21 Read article
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Taguchi based validation of wear prediction for Zirconium dioxide particulate reinforced Aluminium 7068 composites
Abstract: The current work emphasis on the tribological characterization of Zirconium dioxide (Zirconia, ZrO2) particulates reinforced Aluminium 7068 metal matrix composites for different process variables established following design of experiments methodology and consequent taguchi based validation techniques for wear prediction. The pin on disc wear test is carried out on specimens fabricated enroute ultrasonic assisted stir casting with controlled dispersion of 12 Wt.% of ZrO2 and subsequent machining of the castings …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 37–50 Read article
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Characterization and Wear Behavior of TiN, TiAlN, TiCrN and AlCrN PVD Coatings Deposited onto AISI H13 Hot Forging Die Steel
Abstract: Four Nitride coatings TiN, TiAlN, TiCrN and AlCrN were deposited onto AISI H13 hot work die steel by cathodic arc evaporation physical vapour deposition (PVD) technique. The coatings were characterized by SEM, SEM-EDS, XRD, line scan EDS and X-Ray mapping tests and micro hardness tester. The wear characteristics were investigated using a pin on disc method at high temperature and speed against En-31 bearing steel disc. It was observed that …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 2, 2018 · pp. 1–11 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
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A Study to Assess the Effectiveness of Anxiety and Physiological Parameters Among Elderly in Selected Old Home, Coimbatore
Abstract: An experimental study with a two-group pretest and posttest design was conducted to evaluate the effectiveness of massage therapy on anxiety and physiological parameters among elderly adults residing in Annai Mother Therasa Old Age Home, Coimbatore. The study included 40 participants selected through simple random sampling and assigned equally to experimental and control groups. Data were collected using a Socio-Demographic Data Sheet, the State-Trait Anxiety Inventory (STAI), and physiological measures, …
Published in International Journal of Geriatric Nursing · Vol. 8, Issue 2, 2025 · pp. 13–29 Read article
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Neural network based prediction of shear wave velocity for soils
Abstract: The paper presents a study on the prediction of the shear wave velocity (Vs) for all soils using ANN model from cone penetration test data. The input parameters in the obtained of ANN models were vertical effective stress, sleeve friction, cone tip resistance and output was the shear wave velocity. These parameters were considered to construct the ANN model which has 3-2-1 topology in prediction of shear wave velocity. Further, …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 2, 2019 · pp. 23–34 Read article
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Determination Of Soil Bearing Capacity for a Proposed 3-Storey Agricultural Engineering Complex
Abstract: At the course of the research work, bore- holes were dug at the proposed site and soil samples were collected at depth 1m, 2m, and 3m for geotechnical analysis to determine the suitability of the site for 3-storey Agricultural Engineering complex construction. The laboratory analysis performed yielded the results listed below; It was discovered that the soil's natural moisture content ranged from 11.69% to 13.01%. All samples had an exact …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 2, 2023 · pp. 35–41 Read article
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CFD Study on the Effect of Air Bubble Injection Performance of a Horizontal Helical Shell and Coiled Tube Heat Exchanger
Abstract: In present review, a shell and curled cylinder heat exchanger will be numerically considered. The creation technique for helically looped tube which contains turbulator and furthermore the impacts of turbulator on warm and frictional qualities of hotness exchanger will be introduced in this review. CFD examination on ANSYS FUENT programming will be acted in two principle modes. In first mode, the liquid of looped cylinder will be water and in …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 2, 2021 · pp. 1–29 Read article