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21 articles for “low-velocity impact”
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Low-Velocity Impact Behaviour of 3d Printing Techniques Using Fiber Reinforcement Polymer Composites: A State of the Art Review
Abstract: Additive manufacturing (AM) is one of the pioneering fields of composite manufacturing, not only in the fabrication of composite all other emerging fields also utilize this technology. Fibers are one of the predominant reinforcing agents which are used to fabricate composite materials for many applications. This review article provides a detailed discussion about the role of 3D printing technology using fiber-reinforced composites in low-velocity applications. 3D printing technology provides very …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 2, 2021 · pp. 1–7 Read article
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Low Velocity Impact Behaviour of Corrugated Foam Sandwich Panel
Abstract: Composite sandwich structures, renowned for their high flexural stiffness and low weight, are widely used across industries such as aerospace, automotive, and marine. However, their durability can be compromised by impact-related damages, which affect both the core and face sheets. This study explores the performance of corrugated sandwich panels compared to conventional designs under low-velocity impacts. Using a drop weight impact testing machine, panels made from polyurethane foam cores and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 79–99 Read article
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Experimental Analysis of Glass Fiber Composite on Low Velocity Impacts
Abstract: This research specifically deals with determining the retained tensile strength after loading Glass Fiber Reinforced Polymer (GFRP) composites following low-velocity impact. The purpose is to determine the degree to which these impacts affect the structural performance and mechanical integrity of GFRP materials. Experimental tests were conducted on glass fiber composite specimens in order to observe variation in tensile strength upon impact. The results indicated significant tensile strength reduction in impact …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 789–796 Read article
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Layered Metal–Polymer Hybrid Laminates with Embedded Impact Sensors for Connected Automotive Panels
Abstract: The increasing demand for lightweight, intelligent, and structurally reliable automotive components has accelerated the development of multifunctional hybrid materials capable of simultaneously providing superior mechanical performance and real-time structural health monitoring. In this study, a novel layered metal–polymer hybrid laminate incorporating an embedded flexible impact sensor was developed for connected automotive panel applications. The laminate was fabricated using AA6061-T6 aluminum alloy face sheets and a thermoplastic polyurethane interlayer through hot-press …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 36–47 Read article
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Study of Two-distinct Automotive Bumper Beam Designs during Low Speed Impacts
Abstract: Bumper beam is one of the key components in the automotive bumper system, which plays an important role in crash as a protection for occupants and a car's frontal compartment by absorbing impact energy. The most critical parameters, including material, thickness, and shape and impact condition are studied in this paper for the design and analysis of an automotive front bumper beam to enhance the low-velocity impact crashworthiness design. Two …
Published in Journal of Automobile Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 16–28 Read article
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Multi-Layer Aluminum–Polymer Hybrid Structures for Improved Automotive Impact Performance
Abstract: Layered metal–polymer hybrid laminates have emerged as promising candidates for lightweight automotive structures requiring high impact resistance and structural reliability. In this study, aluminum/glass–epoxy hybrid laminates were fabricated using a symmetric stacking sequence through hot compression molding to evaluate their mechanical and energy absorption performance. Density analysis revealed an average measured density of 2.34 g/cm³, closely matching the theoretical value of 2.36 g/cm³, with a deviation of approximately 1.02%, indicating …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 42–53 Read article
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CHARACTERIZATION OF STRENGTH OF ALUMINUM (Al 6063-T6) AFTER CORROSION
Abstract: Aluminum are frequently used as light weight structure in various nautical design. One of them is the ship structure design where sever environment of saline water influences the damage of the structure and one among them is pitting. In this paper, an experimental verification of strength and impact of corrosion effect on Al-6063 – T6 aluminum was presented. The specimens were exposed to saline water for various duration like 500hrs, …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 48–61 Read article
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Characterization of Strength of Aluminum (Al 6063-T6) After Corrosion
Abstract: Aluminum are frequently used as light weight structure in various nautical design. One of them is the ship structure design where sever environment of saline water influences the damage of the structure and one among them is pitting. In this paper, an experimental verification of strength and impact of corrosion effect on Al-6063–T6 aluminum was presented. The specimens were exposed to saline water for various duration like 500 hrs, 750 …
Published in Journal of Experimental & Applied Mechanics Read article
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Thermal Stability and Impact Performance of Basalt–Carbon Hybrid Laminates in Polyimide–Phenolic Matrices
Abstract: The impact resistance and thermal stability of the advanced polymer composites are properties that are necessary for the components that are subjected to dynamic conditions, which show the overall reliability and service performance of the laminates applied in automotive structures, protective casings, etc. These properties prevent premature softening or breakdown during long-term exposure to heat. Impact resistance and thermal stability of composite laminates are studied based on fiber orientation and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 247–260 Read article
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Real-Time Crack Detection in Polymer Composites Using Embedded IoT Sensor Networks
Abstract: This study developed an embedded Internet of Things sensor network for real-time crack detection, localization, and severity assessment in glass–fiber-reinforced polymer composites. Four polyvinylidene fluoride sensors were embedded near the laminate mid-plane and connected to synchronized wireless acquisition nodes. Controlled low-velocity impacts generated graded damage states. Ultrasonic C-scan and optical microscopy provided independent labels. A compact multi-channel convolutional model processed normalized waveforms, spectral entropy, signal energy, and arrival-time differences at …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 866–899 Read article
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Artificial Neural Network Based Prediction of Impact Loads and Thickness in CFRP and GFRP Composite Laminates
Abstract: Recent technological advancements, particularly the integration of neural networks, have facilitated a predictive approach to complex engineering problems, especially those involving composite materials with directional properties. The scarcity of literature on predicting impact damage using experimental and ultrasonic flaw detection data motivated this study. Experimental assessment of impact damage on carbon fiber/epoxy (CFRP) and glass fiber/epoxy (GFRP) composites was conducted using low-velocity drop weight impact testing. Damage assessment employed an …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 2, Issue 1, 2024 · pp. 34–45 Read article
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Advancements In Metal-Fiber Composites for Aerospace and Defense Applications: A Comprehensive Review
Abstract: This paper provides a comprehensive review of fiber-reinforced composites, focusing specifically on the utilization of metal-fiber composites in aerospace such as metal surface preparation prior to bonding, resin selection, and detailed examination of mechanical testing and impact studies. The significance of metal surface preparation for establishing strong bonding, which is a crucial initial step in composite fabrication, is discussed. Additionally, the prevalent use of epoxy resins and their importance in …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 96–108 Read article
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VLSI Transistor and Interconnect Scaling Overview
Abstract: In this paper, various types of device and interconnect scaling used for VLSI transistors are mentioned. Advanced device scaling techniques using SOI & FINFET technology are discussed for nano-devices. New technologies adopted at research level are stated here in brief. Keywords: Scaling factor ‘s’, technology or process node, short-channel effects, draininduced barrier lowering, punch through, surface scattering, velocity saturation, impact ionization, hot electrons, SOI, floating body, FinFET, quantum dot cellular …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 1–15 Read article
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Numerical Simulation of Crack Growth in Dynamic Loading Conditions
Abstract: Because it is crucial for forecasting structural failures in engineering applications, crack formation in materials under dynamic loading circumstances has become a crucial study topic. In this work, finite element methods (FEM) are used to numerically simulate fracture propagation in dynamic stress situations. The impact of loading rates, material characteristics, and crack geometries on crack growth patterns are assessed in a thorough parametric research. The work uses sophisticated computational methods …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 2, Issue 2, 2024 · pp. 30–34 Read article
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Impact of Solar Variability on the Heliosphere and Cosmic Rays Modulation with Geomagnetic Activity
Abstract: AbstractThe structure of the heliosphere and produce changes in cosmic ray intensity controls by solar variability. the observation based on data taken from Omniweb data center for solar interplanetary data and count rate of cosmic ray intensity (CRI) variation data from Oulu / Moscow neutron monitors (with cutoff rigidities Rc=0.80 GV and Rc=2.42 GV) during 1996-2018. It is observed that the sun is remarkably quiet and the strength of the …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 1, 2020 · pp. 32–35 Read article
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Entropy Analysis of Unsteady MHD Bioconvective Nanofluid between Parallel Disks under Squeezing Motion and Multiple Slip Conditions.
Abstract: This research offers valuable insights for improving heat transfer and minimizing entropy generation in engineering systems that involve nanofluids and microorganisms. It investigates the unsteady squeezing bioconvection flow of a nanofluid between two parallel disks, with a focus on entropy generation, flow dynamics, heat transfer, and the concentration of both nanoparticles and microorganisms. The lower disk is stretched horizontally and subjected to suction, while the upper disk moves vertically, creating …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 28, Issue 1, 2025 · pp. 17–40 Read article
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MODELING AND SIMULATION OF LEGIONELLA TRANSPORT INFLUENCED BY HETEROGENEOUS VELOCITY IN STREAM
Abstract: The purpose of this study is to monitor the behaviour of legionella contaminant in stream, the rate of concentration at different monitoring station developed various rate of effect on the water bodies, heterogeneous velocity of flow in the stream was observed as the major sourced of change in concentration at different stations, the expression from the system developed the derived solution to evaluated the behaviour of the contaminant at different …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 2, 2019 · pp. 29–35 Read article
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Design, Mathematical Modeling, and Dynamic Optimization of a Speed Breaker-Based Vehicular Kinetic Energy Harvester
Abstract: Decentralized energy harvesting methods are becoming more popular due to rapid urbanization and the rising need for sustainable infrastructure. The road-embedded vehicle kinetic energy harvester (VKEH) design, mathematical modelling, and experimental validation are presented in this work. This paper presents the structural engineering, continuum mathematical modeling, and experimental validation of an optimized road-embedded vehicular kinetic energy harvester (VKEH). The mechanism utilizes a spring- loaded, low-friction rack-and-pinion transmission coupled with a …
Published in International Journal of Electrical Power and Machine Systems · Vol. 4, Issue 2, 2026 Read article
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Effect of Blunt Truncation in an Aerospike Nozzle
Abstract: Aerospike nozzles are gaining attention as a more advanced alternative to conventional bell nozzles, mainly because they can perform efficiently across a wide range of altitude conditions. Unlike traditional converging–diverging nozzles, aerospike designs naturally adjust to changes in ambient pressure, allowing the exhaust flow to expand more effectively. This results in better thrust performance under varying operating conditions, making them a strong candidate for future aerospace propulsion systems. In this …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Optimizing Parameters for Dry Sliding Wear Control in Stir-Cast AA7050/SiC Composites
Abstract: Using a pin-on-disc tribometer, this study examined the dry sliding wear behavior of AA7050/SiC composites. The production of this metal matrix composite was achieved through the stir-casting process, which involved an initial step of melting the AA7050 alloy, followed by the careful introduction of silicon carbide (SiC) particles, stirring to achieve uniform dispersion, and finally, casting the molten mixture. Wear rate (WR) was determined by three operational parameters: SiC reinforcement …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1624–1635 Read article