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173 articles for “Hardness test”
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Mechanical Performance Evaluation of Brachyuran Shell Particle-Infused S-Glass Fibre Epoxy Polymer Composites
Abstract: Epoxy composites bio-filled with brachyuran crab shell powder and reinforced with S-glass fibres at different loadings (2%, 4%, and 6%) are tested for their mechanical properties in this work. Using modest amounts of filler significantly improved hardness, ultimate tensile strength, and flexural strength in the empirical data. The largest increase in hardness was 64.42% at 4% filler, up from 26.22% at 2%; however, there was a dramatic decrease to 13.11% …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 500–507 Read article
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Finite Element Analysis of Multiwall Carbon Nanotubes Enabled Single Lap Joint
Abstract: This study uses finite element analysis (FEA) to examine the strength of adhesively bonded single lap joints with and without Multiwall Carbon Nanotubes (MWCNT) added to the adhesive. Shear strength analysis is performed by applying a tensile load that generates shear stress at the overlap between the two substrates bonded with adhesive. Aluminum (Al-Al) substrates were used, and single-lap joints were prepared following ASTM standards. Specimens with identical overlap and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 195–203 Read article
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Experimental Investigation on Mechanical Characterization of Electrodeposited Shot Peened Copper Coated and Un-Coated Mild Steel
Abstract: The fatigue strength of fabricated copper coating on mild steel specimens under repeated loading and the overall number of cycles to failure has been investigated. The specimens of copper coating on mild steel substrate are fabricated by using an electro deposition shot peening method. The hardness behaviour of fabricated specimens studied and the experimental work has been carried out by using Vickers Micro Hardness under the load of 20N force. …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 279–288 Read article
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HirePrep: A Microservice-Based Integrated Placement Preparation Platform with AI Assistance
Abstract: Preparing for campus placements can be a confusing and time-consuming process. Students have to use different platforms for things like practice tests, study materials, talking to people, and getting updates from the administration. This is not a waste of time, but it also makes it harder for students to be productive and clear about what they need to do when they are getting ready for their careers. To make things …
Published in E-Commerce for Future & Trends · Vol. 13, Issue 1, 2026 · pp. 25–37 Read article
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Xypher Bot: Autonomous Surveying Robot
Abstract: Xypher Bot is a fully autonomous robot built to carry out tasks like height measurement, estimating distance, and detecting objects. It uses affordable and easily available components such as the MPU6050 sensor, ultrasonic sensors, and a laser pointer. By using simple trigonometry, the bot can measure object height with good accuracy. The top part of the bot, which is responsible for height measurement, has already been built and tested. The …
Published in International Journal of Advanced Robotics and Automation Technology · Vol. 3, Issue 2, 2025 · pp. 49–62 Read article
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Development and Evaluation of Hybrid Natural Fiber Composites
Abstract: Natural fiber based polymer composites are becoming more common because they are cheap, sustainable, and operate effectively across mechanical and environmental settings. Natural fibers (NFs) like bamboo and roselle are being used to strengthen polymer composites. They are being used in textiles, medical equipment construction, and car making. People are becoming more interested in these fibers because of the unique properties. Bamboo fiber is an effective option for reinforcement in …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 908–915 Read article
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Security and Surveillance Robot Using Arduino
Abstract: The proposed system unveils the design and implementation of an Arduino-powered security and surveillance robot equipped with fire detection, obstacle avoidance, and remote monitoring capabilities. Integrating sensors like PIR and ultrasonic units, this autonomous robot navigates and patrols environments, actively detecting fire hazards and evading obstacles while providing real-time alerts and data to users through a dedicated app. This paper details the hardware and software components, outlining the robot's construction, …
Published in Trends in Machine design · Vol. 11, Issue 1, 2024 · pp. 30–36 Read article
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Performance Evaluation of Rubber Crumb-Modified Bitumen for Sustainable Pavement Applications
Abstract: This research investigates the effect of rubber crumb modification on the physical and mechanical properties of VG-40 bitumen for flexible pavement applications. Rubber crumbs were incorporated at varying percentages (0, 8, 10, 12, 14, and 16%) to analyze their impact on penetration, softening point, ductility, and elastic recovery. Additionally, the Marshall stability test was conducted to evaluate the strength and deformation characteristics of the bitumen mix. The results demonstrated a …
Published in Journal of Geotechnical Engineering · Vol. 12, Issue 2, 2025 · pp. 20–24 Read article
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Evaluating the Optimal Alccofine-1203 Replacement Ratio in M20 Grade Concrete
Abstract: The primary objective of this research is to investigate the potential of partially replacing cement with Alccofine 1203 in M20 grade control concrete and to evaluate the resulting effects on the mechanical properties of the concrete. Alccofine 1203, a high-performance mineral admixture known for its ultrafine particle size and high reactivity, was used as a partial cement substitute at varying replacement levels of 5%, 10%, and 15% by weight of …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 294–299 Read article
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Considerations on Fractured Edge Dislocations of Mechanical Tested Hand Laid Hemp Flax GFRP Hybrid Polymer Composites with SEM Verifications
Abstract: In this research study, three types of composite samples are made. Hemp-Glass Fiber (C1), Flax- Glass Fiber (C2), and Hemp-Flax-Glass Fiber Hybrid Composite (C3). For proper fibre-to-fiber adhesion and bonding, a 10:1 mixture of glue (LY556) and brace (HY951) was used. Tensile, flexural, impact, double shear, and hardness research is conducted among all the specimen samples. According to ASTM standards, the comparison is made among C1, C2 and C2 respectively; …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 1–19 Read article
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Comparison of Models of Machine Learning and Hyperparameter optimization methods on various datasets
Abstract: The most likely phase in achieving powerful and robust machine learning models is probably the hyperparameters tuning step. The traditional exhaustive methods of search (Grid Search and others) ensure that the search space is covered, but are computationally very inexpensive; random search is less expensive and can still miss good regions; and lastly, the modern model-based and population-based methods (Bayesian Optimization, Tree-structured Parzen Estimator (TPE), Genetic Algorithms) are thought to …
Published in Recent Trends in Programming languages · Vol. 13, Issue 1, 2026 Read article
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An Experimental Investigation of Impact of Polyproplene as a Partial Replacement in Concrete
Abstract: India, as a developing nation, will require high-strength and high-performance concrete for future infrastructure projects. Fibrous concrete, which incorporates fibers to enhance structural integrity, is one such material that could meet these demands. With different concrete fibrous materials, shapes, distributions, orientations, and densities, fibrous concrete takes on different characteristics. Polypropylene is a lightweight synthetic fiber that enhances the structural strength of concrete and helps prevent the formation of cracks. In …
Published in Journal of Construction Engineering, Technology & Management · Vol. 14, Issue 3, 2024 · pp. 1–6 Read article
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Exploring the Mechanical Characteristics of Three Natural Composite Materials (Kenaf, Sisal, and Banana with Almond shell, Glass, and Silicon carbide fillers): A Comparative Evaluation
Abstract: The current global demand for lightweight, long-lasting, and economically efficient materials is of unprecedented magnitude. Industry sectors including aircraft, automotive, construction, and sports are constantly adapting to fulfil these requirements. Natural composites refer to materials obtained from natural sources that utilise two or more separate components to form a material with improved characteristics. In numerous industries, natural composites offer a potential and ecologically sound alternative to synthetic materials by harnessing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 492–502 Read article
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Cross-Domain Comparative Analysis of Microwave Imaging Systems for Medical Diagnostics and Industrial Testing
Abstract: Microwave imaging is gaining significant traction as a non-ionizing, low-cost, and portable alternative to conventional diagnostic and inspection modalities in both medical and industrial domains. Leveraging the dielectric contrast between healthy and anomalous tissues or materials, microwave imaging systems enable early-stage detection and characterization of pathological or structural anomalies. This review provides a detailed comparative analysis of microwave imaging systems tailored for three critical applications: breast cancer detection, brain stroke …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 39–48 Read article
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Optimized Hardware Realization of AES for High-Throughput FPGA Platforms
Abstract: The Advanced Encryption Standard (AES) is the predominant symmetric-key cryptographic algorithm used for securing digital communication across embedded systems, IoT devices, cloud infrastructures, and defense networks. Although software-based AES implementations offer flexibility, they often fail to meet the high-speed, low-latency, and energy-efficient requirements of modern real-time applications. Reconfigurable hardware platforms such as Field-Programmable Gate Arrays (FPGAs) provide a powerful alternative by enabling architectural customization, intrinsic parallelism, and optimized hardware acceleration. …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 3, Issue 2, 2025 · pp. 11–22 Read article
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Enhancing Delamination Resistance in CFRP Composites through surface Functionalization of Woven carbon Fiber by CuO Nanostructures
Abstract: In order to produce a nanostructured interphase that improves the interfacial interaction with an epoxy resin matrix, copper oxide (CuO) nanostructures were hydrothermally formed onto woven carbon fibers (WCF). Hexagonal CuO nanorods were created using a two-step, seed-assisted solvothermal technique on plain woven carbon fiber. This study investigates the effects of surface modification of carbon fibers by the formation of CuO nanostructures using a hydrothermal technique on the mechanical properties …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 589–602 Read article
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Experimental Exploration of Crack and Damage Dynamics of Hybrid FRP Nano Composites
Abstract: Fiber-reinforced polymer (FRP) composites have become essential materials in modern engineering structures because of their excellent strength-to-weight ratio, corrosion resistance, and adaptability in design. Among different fracture modes, Mode I interlaminar fracture where cracks propagate under tensile opening stresses is one of the most critical forms of damage in layered composites. Since delamination occurs within the matrix-rich regions between plies, improving the matrix properties plays a key role in enhancing …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 220–232 Read article
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Experimental Investigations on Aluminium Composites Materials Using Stir Casting Process
Abstract: In physical operations, accoutrements in motorcars and aeronautical machine factors, aluminium and its alloys are extensively used. In this study an effort is made to ameliorate the properties of aluminium essence matrix compound (A356) for manufacturing of machine rudiments taking High Tensile strength, Hardness, Wear resistance and low coefficient of friction, aluminium alloy (A356) reinforced with aluminium oxide, graphite and silicon carbide. In the current work, A356 as base metal …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 302–323 Read article
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Automatic Gas Leakage Detection System
Abstract: This project report presents the design and implementation of a focused automatic gas leakage detection and ventilation system centered on the Arduino Nano microcontroller and the MQ-2 gas sensor. The primary function of the system is to detect flammable gases like LPG, propane, and methane using the MQ-2 gas sensor. This sensor continuously monitors the surrounding air for the presence of these gases. When the gas concentration crosses a predefined …
Published in Journal of VLSI Design Tools and Technology · Vol. 15, Issue 3, 2025 · pp. 29–35 Read article
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Design and Evaluation of Extended-Release Tablet Compositions Containing Oxaprozin: Integrating Concepts from Bioinformatics
Abstract: The procured sample of Oxaprozin was tested for its identification. The manufacturer also was confirmed of quality and purity of sample. The sustained release tablets of Oxaprozin were prepared by wet granulation method, They were evaluated for weight variation, drug content, friability, hardness, and thickness for all batches (T-1 – T-10). The release of Oxaprozin from sustained release tablet of various formulations varied according to the ratio and degree of …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 11, Issue 1, 2024 · pp. 39–45 Read article