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25 articles for “contact stresses”
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Contact Stress Analysis of Needle Roller Bearing Used in Synchromesh Gear Box
Abstract: The optimum selection of a bearing generally depends on particular application such as to transfer loads between the rotating and stationary members, and to permit free rotation. From among the wide range of bearings available in the market today has various considerations, such as the load-carrying capacity, the life of the bearing, and the working rotational speed need to be considered before a suitable bearing can be selected. Here for …
Published in Trends in Machine design · Vol. 5, Issue 1, 2018 · pp. 5–20 Read article
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Finite Element Modelling of Contact Stresses in Helical Gear Systems
Abstract: Helical gears are widely used in modern power‐transmission systems because of their high load‐carrying capacity, smooth meshing action, and increased overlapping of gear teeth. However, the design of helical gear pairs is constrained by contact stresses generated at the mating tooth surfaces, which can lead to surface fatigue (pitting), micro-cracking, and ultimately gear failure. Traditional analytical methods, such as those of the American Gear Manufacturers Association (AGMA) or International Organization …
Published in Trends in Machine design · Vol. 12, Issue 3, 2025 · pp. 35–39 Read article
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Bending Stress Analysis of Involute Helical Gear and Wildhaber-Novikov Gear
Abstract: This paper presents a bending stress analysis for Wildhaber-Novikov circular-arc gear (W-N gear) and involute helical gear. Bending stress analyses performed are under continuous load transmission during rotation using finite element method. Using CATIA V5 R19, three dimensional W-N gear and involute helical gear are modeled by considering same number of teeth, module, helix angle, pressure angle and face width. Then nonlinear contact analysis was conducted on involute helical gear …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 17–21 Read article
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Effect of Pad and Disc Materials on the Behaviour of Disc Brake against Fluctuating Loading Conditions
Abstract: Disc brake in an automobile plays an important role to control the vehicle during running condition. Recently, asbestos, which is widely used disc brake material is recognised as a carcinogenic material by world health organisation and has been banned throughout the world to eliminate the diseases caused by asbestos material. Therefore, people are looking towards suitable alternatives to replace asbestos with other alternative materials. In this work, an attempt is …
Published in Journal of Automobile Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 22–34 Read article
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Design and Optimization of tooth Profile Modification of Spur Gear by FEA Approach
Abstract: The most important component in vehicle is Gear, In order to accomplish high load carrying capacity with reduced weight of gear drives but with increased strength in gear transmission, gear tooth stress analysis, tooth modifications and design of gear drives are becoming major research area. The failure of gear teeth occurs for particular reason such as high load carrying capacity, high speed rotation etc. The bending stress is largest in …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 15–24 Read article
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Gear-Related Stress Analysis and Comparison Between the Fem and Agma Standards
Abstract: In many different devices, gears enable the efficient transfer of motion and torque. They are an essential component of modern mechanical power transmission systems. It has been demonstrated that bending and surface contact stresses at the gear tooth are the primary causes of gear failure, despite their widespread use. Too much stress can lead to tooth wear, pitting, or breakage, which can ultimately reduce the operating life and reliability of …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 13–18 Read article
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Stress Analysis of a Mechanical Joint from Recorded Data of a Single Component of Displacement
Abstract: The ability to fully stress analyze a pinned/bolted aluminum connector, including the contact stresses at the pin-plate interface, using measured displacement information is demonstrated. This is accomplished by using recorded data from only either one or the other of the two in-plane components of displacement. The relatively small pin-hole clearance results in the pin contacting the edge of the hole for an arc distance exceeding 180 degrees. Reliability of experimental …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 3, 2015 · pp. 23–41 Read article
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Design, Analysis and Experimental Study of Worm and Worm Gear Pair for Plug Valve Application
Abstract: The present work deals with the design procedure, load carrying capacity, mathematical modelling,analysis of worm and worm gear for plug valve application. The plug valves are used in various fluidservices applications. It performs well in slurry applications. It is also used in air, gaseous servicesand oil piping systems and a like applications. In plug valve the main and important function of theworm gear drive is to reliably transmit torque and …
Published in Trends in Machine design · Vol. 8, Issue 1, 2021 · pp. 11–20 Read article
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Two-dimensional Finite Element Analysis of Bolted Flanged Joints
Abstract: A 2D axisymmetric finite element analysis of flanges has been carried out using ANSYS 7.1 version. The analysis consider gasket as a rigid material for contact analysis and the others where the gasket has been considered as a gasket element. The non-linear behaviour with two unloading curves was used to predict the non-linear behaviour. This paper attempts to study and compare the contact pressure, gap, gasket stress and gasket total …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 1, 2016 · pp. 60–65 Read article
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DEM Simulation of Macro and Micro-scale Behavior of Granular Materials during Loading and Unloading
Abstract: The present paper aims at comparing the simulated stress-strain behavior of granular materials quantitatively with the experiment and exploring the evolution of the micro-scale behaviors during loading and unloading using the discrete element method (DEM). A numerical sample consisting of 9826 randomly generated spheres similar to the experiment was prepared. The numerically prepared isotropic sample was subjected to loading and unloading under strain controlled condition. It is noticed that the …
Published in Journal of Geotechnical Engineering Read article
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DEM Simulation of Macro and Micro-Scale Behavior of Granular Materials during Loading and Unloading
Abstract: The present paper aims at comparing the simulated stress-strain behavior of granular materials quantitatively with the experiment and exploring the evolution of the micro-scale behaviors during loading and unloading using the discrete element method (DEM). A numerical sample consisting of 9826 randomly generated spheres similar to the experiment was prepared. The numerically prepared isotropic sample was subjected to loading and unloading under strain controlled condition. It is noticed that the …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 26–38 Read article
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Incorporating Material Fatigue Parameter Determine in The Rolling & Sliding Contact Fatigue Analysis of Gears
Abstract: As the material's intricate stresses and strains are always shifting during phases of loading, determining the predicted equipment working under rolling-sliding contact loads and their fatigue lives (wheels, bearings, and gears) is particularly difficult. Another difficulty is not knowing the precise characteristics of the material used to make the components, which is particularly noticeable. when it comes to heat-treated components, where the material characteristics' values can differ greatly among the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 1–5 Read article
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Three-Dimensional Finite Element Modeling Study of Stress Distribution in Calcaneal Fracture
Abstract: The calcaneus is one of the biggest load-bearing tarsal bone in human body and therefore, many authors stress the importance of its biomechanical modeling and analysis in several aspects. We predicted possible fracture lines’ characteristics throughout the reconstruction of three-dimensional finite element modeling from CT slices and biomechanical analysis of stress state within talo-calcaneal complex, and its clinical validity was identified by comparing with radiographic/intraoperative findings. We reconstructed the 3-D …
Published in Research and Reviews : Journal of Surgery · Vol. 10, Issue 2, 2021 · pp. 11–34 Read article
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Components under rigorous usage of Railway track
Abstract: Risk evaluation of railway rolling stock failures by fatigue are enacted by failure mode, effects and criticality analysis (FMECA) technique. Studies are measurement, evaluation of reliability, availability and maintainability related to components of diesel loco engine. Failure investigations have included railway loco to diesel engine gear train consisting of crankshaft and camshaft gears in auto trucks. Finite element simulations of failure analysis of crankshaft as well experimentation have determined fatigue …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 3, 2019 · pp. 20–28 Read article
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Optimization of Machining Parameters in Electric Discharge Machining of Al 65032
Abstract: Electric discharge machining has the potential to maintain surface topography and produce less stresses and destruction to the components. In this machining there is no contact between the tool and the work piece. The spark generated due to the electrostatic field generation between tool and the work piece. The objective of this experimentation was to create guidelines for electric discharge machining of Al 65032. Aluminum alloy 65032 is one of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 3, 2015 · pp. 15–22 Read article
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Preparation of Transparent and Thermal Resistant Zirconia Reinforced Epoxy Based Polymer Matrix Composite Coatings
Abstract: This study investigates the thermal stability, structural characteristics, optical transparency, and surface wettability of epoxy-based composite coatings reinforced with 2 wt.% zirconia (ZrO₂) nanoparticles. The composite coatings were synthesized using a dip-coating technique on carbon fiber substrates and subsequently subjected to thermal treatments at 300 °C, 400 °C, and 500 °C. Structural analysis using X-ray diffraction (XRD) confirmed the amorphous nature of the epoxy matrix with no significant crystallization or …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 171–177 Read article
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Management of Chronic Eczema through Yoga, Unani, and Homoeopathic Systems of Medicine
Abstract: Eczema is an inflammatory responsive state of the skin, which is described by erythema, skin edema, vesiculation, itching, oozing or bleeding, flaking, blistering, cracking, crusting and lichenification. Various kinds of eczema include atopic dermatitis, seborrheic dermatitis, contact dermatitis, dyshidrotic eczema, nummular and stasis dermatitis. Eczema is prevalent among all age groups across the nations of the world. Psychological stress is known to play a significant role in exacerbation of skin …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 7, Issue 2, 2020 · pp. 52–59 Read article
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Exposure of Nanoparticle Leads to Health Hazards
Abstract: Nanotechnology is a technique used for the production of materials of the nanoscale level. This is a new development in technology which usually entails some hazards as well as advantage to society. Thus nanomaterials are well known for their various beneficial uses in the medicines, engineering, computer, etc., in spite of that it is associated with many hazards related to human health. The exposure of nanomaterials through dermal contact, inhalation, …
Published in Research and Reviews: A Journal of Toxicology · Vol. 9, Issue 3, 2019 · pp. 7–18 Read article
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A Review on Formulation and Evaluation of Polyherbal Face Sheet Mask.
Abstract: This research focuses on the formulation and evaluation of a polyherbal face sheet mask developed using natural herbal ingredients to address common skin concerns such as acne, dullness, pigmentation, sun damage, dark spots, and uneven skin tone. With the increasing demand for safe, eco-friendly, and chemical-free skincare products, herbal-based cosmetic formulations have gained significant attention due to their therapeutic properties, minimal side effects, and enhanced consumer acceptance. Face sheet masks …
Published in Research & Reviews : Journal of Herbal Science · Vol. 15, Issue 2, 2026 Read article
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A Review on Mechanical Behavior of Lithium Ion Batteries for Electric Vehicles
Abstract: The current automobile industries are much dependent on conventional petroleum fuels like petrol, diesel etc. which are creating many environmental issues due to combustion reactions and generation of carbon dioxide. This continues use of conventional fuels leads to either increasing the price of it and vanishing of its resources in future. Considering this pure battery based electric vehicle or electric vehicle with hybridize combination of battery and any other energy …
Published in International Journal of Electro-Mechanics and Material Behaviour · Vol. 2, Issue 2, 2024 · pp. 1–20 Read article