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283 articles for “stress-testing”
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Development of Robot Arm Fingers with Polymer Soft Materials
Abstract: Lightweight soft material applications have attracted attention to Basalt Fiber Reinforced Polymer (BFRP) laminates because of their impressive mechanical characteristics. The impact response and stress-strain behavior of epoxy resin laminates armored with basalt fiber and banana fiber are investigated during this project using computational and experimental approaches. The hand lay-up method was employed to create laminates with a thickness of 3 mm, dimensions of 300x300 mm², and a layout of …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 432–439 Read article
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DESIGN AND ANALYSIS OF A METAL LINED COMPOSITE OVERWRAPPED PRESSURE VESSEL
Abstract: This study presents a comprehensive investigation into the mechanical behavior of a metal lined composite overwrapped pressure vessel, designed for high-pressure storage applications. The design approach is dependent upon fiber material constants and dome shape factor. The study begins with obtaining dome coordinates and maintaining winding angles according to a geodesic path equation. Thickness estimation for the portion of cylindrical shell and domes are determined through netting analysis and cubic …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 215–232 Read article
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Effect of Yogic Training on Selected Physiological and Psychological Variables of Sports persons.
Abstract: The primary objective of this research endeavor was to investigate the impact of Yogic training on specific physiological and psychological parameters among sportspersons. A sample comprising 50 sportspersons (25 male and 25 female), aged between 18 to 25 years, was randomly selected from Ahmedabad for the study. The intervention involved four weeks of Yogic training, during which data were collected at two time points: before the commencement of training (pre-test) …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 11, Issue 2, 2024 · pp. 35–39 Read article
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A DESCRIPTIVE STUDY TO ASSESS THE LEVEL OF STRESS AMONG THE STAFF NURSES OF GOVT.HOSPITAL FATEHABAD
Abstract: The word stress was originally used by Selye. It is defined as an adoptive, responsive to an external situation that results in physical, psychological and behavioral deviation for organizational participants. Stress is the most common condition experienced by workers which occurs when their conflicts between workplace, workload and the individual’s ability to cope with the situation (AGOLLA, 2008). Problem resulting from stress includes -Decline in physical and mental health, Feeling …
Published in Journal of Nursing Science & Practice · Vol. 12, Issue 2, 2022 · pp. 14–18 Read article
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A Study on the Impact of Paracetamol on Male Reproductive System: A Mini Review
Abstract: Paracetamol, a widely used analgesic and antipyretic, has been studied for its potential effects on the male reproductive system. Paracetamol is a medication commonly used to relieve mild to moderate pain. Research suggests that prolonged or high-dose use of paracetamol may adversely affect male fertility by disrupting hormone regulation, impairing sperm production, and reducing testosterone levels. Studies have shown that paracetamol can interfere with the hypothalamic-pituitary-gonadal axis, leading to changes …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 15, Issue 2, 2025 · pp. 43–51 Read article
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Assessing the Variation in Cutback Asphalt Requirement for Various Geotechnical Properties of Asphalt Stabilized Soil
Abstract: The subgrade layer must be strong to resist shear failure, tensile stresses and have adequate stiffness to avoid and resist excessive pavement deformation. Available fill materials do not always meet these requirements and may require improvement of their engineering properties, soil stabilization with liquid asphalt may be an alternative to improve the stability, adhesion and waterproofing properties which are desired for embankment construction purpose. The soil in this investigation represents …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 3, 2015 · pp. 17–29 Read article
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Development of Self-Healing Circuit Boards Using Shape Memory Polymer Composites
Abstract: This study investigates the influence of temperature, humidity, and nanofiller type on the electrical and structural performance of advanced polymer nanocomposites for self-healing circuit applications. Particular attention was given to conductivity retention and the morphological behavior of carbon nanotubes (CNTs), graphene, and silver nanoparticles (AgNPs). Results show that conductivity decreased under elevated thermal–humidity conditions, reflecting the role of environmental stress in material degradation. Among the tested systems, AgNP-based composites achieved …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 746–770 Read article
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Condition Monitoring of a Round Bar with a Defect Using Vibration Analysis
Abstract: As an energy-saving and high-efficient stress relieving process, vibratory stress relief [VSR] influence of on fatigue life is still explicit and needs further investigation. Standard specimens are manufactured to study the VSR effects on 2014 T6 aluminum alloy fatigue behavior. Dynamic stresses generated during vibration are measured by strain gauge and the residual stresses with and without VSR are compared to validate the stress relieving effects. Eventually, fatigue tests are …
Published in Trends in Machine design · Vol. 6, Issue 2, 2019 · pp. 5–7 Read article
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Processing and Mechanical Characterization of Compression-Molded Ultrahigh Molecular Weight Polyethylene Biocomposite Reinforced with Aluminum Oxide
Abstract: Ultrahigh molecular weight polyethylene (UHMWPE) has been widely used as a bone implant material in orthopedic surgical applications in trauma due to its low coefficient of friction, good biocompatibility, and excellent wear and corrosion resistance properties in comparison to other polyolefins. But, due to the formation of wear debris, implants loosen and fail after 12–15 years of implantation. In order to enhance lifespan, the role of alumina (Al2O3) reinforcement on …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 3, 2014 · pp. 1–12 Read article
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Review and analysis of the Programmable Tungsten Inert Gas Welding Machine
Abstract: The purpose of this study is to examine metal inert gas (MIG) and tungsten inert gas (TIG) welding processes. This study focuses on welding defects with various kinds of AISI- 1020 mild steel welding joints when using metal inert gas (MIG) and tungsten inert gas (TIG). The impact of different process variables on mild steel welding was looked into. In this study, the main process parameters were changed, and destructive …
Published in International Journal of Manufacturing and Production Engineering · Vol. 4, Issue 2, 2026 Read article
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Assessing the Poisson Ratio of Reinforced Earth under Static and Dynamic Stresses
Abstract: Poisson’s ratio is an essential property of the soil strength and it is a measure of the amount of lateral strain in the soil sample caused due to the longitudinal strain of the soil. An attempt has been made in the present work to detect the variation in the Poisson ratio for reinforced and asphalt stabilized soil when tested under static and dynamic compressive stresses. Soil embankment model was prepared …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 50–56 Read article
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Mechanical Performance Degradation of Naturally Aged Nitrile Butadiene Rubber in Low Frequency Range...
Abstract: For good mechanical design, damping is often still an invisible requirement. Nitrile Butadiene Rubber (NBR) has a wide range of applications as a damping and sealing material. To offer the long-term service of NBR, it is important to estimate the degradation of modal properties under complex mechanical and environmental loading. The present work aims to correlate the experimental data with generalized higher-order Maxwell models and curve fitting techniques to find …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 68–79 Read article
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Microstructural and Mechanical characterization of Brass and Bronze alloys
Abstract: Brass, a copper and zinc alloy, is renowned for its malleability and resistance to corrosion, which makes it perfect for musical instruments and plumbing. Aluminium bronze, containing copper and aluminium, offers superior strength and wear resistance, commonly used in marine and industrial applications for its durability and corrosion resistance. This study aimed to compare the micro and macro structural characteristics of brass and aluminium bronze alloys. The microstructures of these …
Published in Journal of Materials & Metallurgical Engineering · Vol. 14, Issue 2, 2024 · pp. 28–37 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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Finite Element Analysis of Aluminium and Stainless Steel Perforated Sheet Metal (PSM) for Sheet Bending Process
Abstract: This research work deals with the experimental and finite element analysis of the perforated sheet bending process of stainless steel and aluminium material. Several experiments were performed to investigate the effects of above described variable on stress and load displacement graphs for the tested and simulated components. On the basis of different simulations being carried out with different combinations of material, shape and shape of perforations; the stress analysis was …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 3, 2015 · pp. 51–57 Read article
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New Design Formulae for Safety and Precision in the Fatigue Engineering of Mechanical Components and Structures
Abstract: This paper introduces two new formulae, termed the Nori Fatigue Formulae, for determining the maximum allowable fatigue stress in mechanical components and structures with significant stress concentrations. These formulae will eliminate the usage of code-sensitive safety factors along with other factored values from the entire mechanical design engineering work, ranging from a safety pin to spacecraft. The first formula gives the maximum allowable fatigue stress in tension, and the second …
Published in Trends in Mechanical Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 6–22 Read article
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Influence of Mechanical Parameters on Corrosion Behavior of Metal Coupons in Simulated Environmental Conditions
Abstract: This study investigates the influence of mechanical parameters—namely applied stress, surface roughness, and deformation history—on the corrosion behavior of metal coupons exposed to corrosive environments. Mild steel and aluminum alloy specimens were prepared with controlled variations in tensile stress, polishing grades, and cold-working levels to simulate real-world mechanical influences. These coupons were immersed in a 3.5% NaCl solution under ambient conditions, and their corrosion rates were monitored over a 30-day …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 3, Issue 2, 2025 · pp. 6–12 Read article
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Induction of Genetic Damage in Peripheral Erythrocytes of the Fish, Anabas testudineus Exposed to Sublethal Concentration of Acid Orange 7
Abstract: Acid orange 7, a synthetic organic compound, generally considered as pollutant, released from the process of chemical textile finishing process was exposed to the freshwater fish Anabas testudineus at sublethal concentration i.e., 0.27 gl-1 for 24, 72 and 96 h, maintaining ten animals per group along with the control. The median lethal concentration of acid orange 7 determined by Probit analysis was 2.7 gl-1 concentration. Sublethal exposure to the azo …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 2, 2019 · pp. 83–96 Read article
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A New Numerical Method for the Analysis of Stress Concentration in Tension Specimen
Abstract: Analyzing the stress concentration in the critical region of a mixed boundary value elastic problem has always been an important area of interest in applied mechanics. In most of the cases, the problems were circumvented using a numerical solution. A numerical approach has been used to solve elastic problems of arbitrary shaped bodies subjected to mixed boundary conditions. The formulation of displacement potential function is used in finite difference method …
Published in Journal of Experimental & Applied Mechanics · Vol. 3, Issue 1, 2012 · pp. 1–16 Read article
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A Comprehensive Study of Radial Load Fluctuation on Alloy Wheels for Electric Vehicles
Abstract: Electric Vehicle’s alloy wheels are designed to allow for better heat dissipation. Manufacturers carry out many tests of a wheel to be sure, that the wheel will fit for safety reason as also their comfortability level is even bigger. Therefore, a specific design was selected for which the simulations of alloy wheel were performed under real loading conditions. The main objective of this research is to analyze the effects of …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 2, Issue 2, 2024 · pp. 47–56 Read article