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686 articles for “strength improvement”
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Bio-Derived TPS–Lignin Hybrid Composites Reinforced with Modified Coir and Plantain Fibers for Eco-Efficient Structural Applications
Abstract: This study develops bio-derived polymer composites using a thermoplastic starch–lignin (TPS–lignin) matrix reinforced with alkali-treated coir and plantain fibers for sustainable load-bearing applications. The TPS–lignin matrix was formulated using cassava starch, glycerol, and 10 wt% lignin, while coir and plantain fibers were surface-modified using 5 wt% NaOH to enhance interfacial compatibility. Composite laminates were fabricated with varying fiber loadings (10–40 wt%) through melt-mixing and hot-press compression. Tensile, thermal, morphological, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 136–145 Read article
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Investigation on Mechanical Properties of Geo Polymer Concrete With Fly Ash and Steel Fibers
Abstract: The goal of this project was to manufacture fly ash-based geopolymer concrete (FAC), a more environmentally friendly substitute for conventional Portland cement concrete (OPC) by using fly ash (FA) in place of cement. The study discovered that the properties of FAC were comparable to those of OPC, and that the concrete's performance was greatly impacted by the geopolymer's polymeric nature. The geopolymerization process was started with an alkaline solution, and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 250–260 Read article
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Interfacial Engineering of Carbon Fiber/Epoxy Laminates Using Functionalized Graphene Nanoplatelets: Experimental and Numerical Study
Abstract: Current research work studies the influence of amines(–NH₂) and carboxyl(–COOH) functionalized graphene nanoplatelets on the mechanical and thermomechanical behavior of unidirectional hybrid composite. Composites having different graphene concentration from 0 to 0.7 wt% were fabricated, characterized and analyzed for multiple testing - tensile testing, dynamic mechanical analysis (DMA) and Fourier transform infrared spectroscopy (FTIR). Tensile testing indicates better elastic modulus and tensile strength due to efficient load transfer between nanoparticles …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 61–77 Read article
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Rubber Materials: Synthesis, Key Properties, and Cutting-Edge Applications
Abstract: Because of its special blend of flexibility, durability, and ability to adapt, rubber and rubber products have long been essential to many different sectors. The synthesis processes used to produce rubber are discussed in this overview, with a focus on developments in polymer chemistry and processing approaches that improve material qualities. Important characteristics, including tensile strength, resilience, and chemical resistance are brought out, highlighting their significance in a variety of …
Published in International Journal of Industrial and Product Design Engineering · Vol. 3, Issue 1, 2025 · pp. 12–23 Read article
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Mechanical and Sustainable Enhancement of Epoxy Composites using Tamarind Seed Powder
Abstract: The investigation examines how tamarind seed powder affects epoxy-based materials for the development of waste-based useful products. The research examines the mechanical behavior of epoxy resin composites which contain tamarind seed powder in increasing percentages spanning from 10% to 40%. The team utilized the hand layup method to produce the composites which then fulfilled the ASTM guidelines for specimen fabrication for mechanical tests. The study examined fundamental mechanical parameters by …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 797–806 Read article
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Typhoid Fever: Etiology, Clinical Manifestations, Diagnosis, and Management
Abstract: Typhoid fever is a systemic and potentially life-threatening infectious disease caused by Salmonella enterica serotype Typhi, which primarily spreads through the fecal-oral route via ingestion of contaminated food and water. It continues to be a major global public health concern, particularly in developing and low-resource countries where poor sanitation, inadequate personal hygiene, and unsafe water supplies prevail. The disease is characterized by prolonged high-grade fever, abdominal discomfort, headache, loss of …
Published in Recent Trends in Infectious Diseases · Vol. 3, Issue 1, 2026 · pp. 1–4 Read article
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Efficacy of Educational Intervention on Knowledge Regarding High-Risk Pregnancy and Its Management in Terms of Knowledge Gain Among Antenatal Women
Abstract: Background: High-risk pregnancies are associated with increased maternal and fetal complications and require timely identification and proper management. Many antenatal women have limited knowledge regarding high-risk conditions and the necessary precautions. Structured teaching programs can significantly improve awareness and empower mothers to take proactive steps for safe pregnancy outcomes. Aim: To assess the effectiveness of a structured teaching program on knowledge regarding high-risk pregnancy and its management among antenatal women …
Published in Research and Reviews: A Journal of Health Professions · Vol. 16, Issue 1, 2026 · pp. 1–5 Read article
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Numerical Investigation on Structural Behavior of RC Beam-Column Joints: Beam Weak in Shear
Abstract: This study presents a numerical investigation on structural performance of reinforced concrete (RC) beam-column joints (BCJ) with beam weak in shear subjected to cyclic loading. Retrofitting techniques are explored, utilizing Glass Fiber Reinforced Polymer (GFRP) for shear strengthening, in accordance with ductile detailing standards outlined in IS 13920:2016. The column and beam elements are designed following the guidelines of IS 456:2000. Various specimen scales, including full-scale, 2/3-scale, and 1/3-scale specimens, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 202–226 Read article
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Development of strontium ferrite/polyamide 12 and neodymium iron boron/polyamide 12 composites using additive manufacturing
Abstract: Polymer matrix composite materials with magnetic properties obtained by the addition of micron-size particles of neodymium iron boron (NdFeB) and strontium ferrite for fused filament fabrication (FFF) are becoming attractive because of their potential applications in the health and automotive industries. Additionally, the design flexibility and low cost of additive manufacturing processes encourage the scientific community to create the materials and understand the properties of the parts obtained with such …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 15, Issue 2, 2025 Read article
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Enhancement of Mechanical Properties in Hemp Fiber-Reinforced Epoxy Composites Using Graphene Nanoplatelets
Abstract: This study investigates how incorporating graphene nanoplatelets (GNPs) influences the mechanical performance of hemp fiber–reinforced epoxy composites. Hemp fibers were chemically treated by alkali treatment to improve fiber–matrix adhesion owing to their high specific strength, stiffness, renewability, and environmental friendliness. Graphene nanoplatelets were dispersed in acetone by probe sonication and added to acetone epoxy matrix at a concentration of 0.5 wt% and 1.0 wt%, respectively. Composite laminates were prepared by …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 98–109 Read article
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Mechanical Strength Prediction of Nano-Silica Concrete Composites Using Machine Learning Techniques
Abstract: Nano-silica, or nanosilica, refers to silicon dioxide nanoparticles, which are a kind of silica (SiO₂) with diameters that often fall below 100 nanometers. This nanomaterial has attracted considerable attention because of its distinctive characteristics and diverse array of uses, notably in augmenting the performance of materials such as concrete. The integration of nanoparticles with cementitious matrix in nano-silica concrete offers a viable approach to improving the mechanical characteristics and longevity …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 963–973 Read article
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Sustainable Development of Carbon–Sisal Reinforced Polyester Composites through Green Nanotechnology
Abstract: This study presents the sustainable development of carbon–sisal fiber reinforced polyester composites enhanced through green nanotechnology for improved mechanical performance and environmental compatibility. The hybrid composites were fabricated using varying fiber ratios - C1 (70% carbon, 30% sisal), C2 (60% carbon, 40% sisal), and C3 (50% carbon, 50% sisal) - with an optimized addition of 1 wt.% nano-silica (SiO2) synthesized via a green sol–gel route. The tensile, flexural, and impact …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1179–1194 Read article
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Impact of Composite Materials by Silica Fume and Fly Ash in Cement and Partial Substitution of Fine Aggregate Using Quarry Dust in Steel Fibre Concrete
Abstract: Mineral admixtures can be added to concrete to replace some of the cement, increasing its overall strength. Fly ash (FA) and silica fume (SF) are two often used mineral admixtures. A series of experiments were conducted to investigate the effect of adding varied amounts of fly ash and a consistent amount of silica fume on concrete strength by using the same amount of substitute for cement and the same water-binder …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 139–147 Read article
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Tailoring Toughness of Pineapple Leaf Fiber-Reinforced Epoxy Composites Using Halloysite Nanotubes
Abstract: This comprehensive study investigates the effects of halloysite nanotubes (HNTs) on the impact strength and fracture toughness of pineapple leaf fabric-reinforced epoxy (PALF/Ep) composites with an emphasis on sustainable material development. ASTM D256 and ASTM D5045 standards were followed in the fabrication of the composites. HNT weight percentages were systematically changed from 0 to 3wt% through using solution mixing and manual lay-up techniques, and vacuum bagging was used to obtain …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 261–272 Read article
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Impact of Chemical Conditioning on the Mechanical Performance of Pine Fibre-Reinforced Composites
Abstract: The study examines the effects of treatments like alkaline, silane, and acetylation on enhancing the mechanical strength and reducing water absorption in pine fiber-reinforced composites. Natural fibres, while eco-friendly and sustainable, present challenges in fibre-matrix adhesion due to their hydrophilic nature, impacting composite performance. Chemical treatments were employed to modify fibre surface characteristics, enhance interfacial bonding, and thereby improve mechanical properties. Silane-treated composites exhibited the highest tensile and flexural strengths, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 140–150 Read article
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Machine Learning–Guided Cognitive RF System with Dynamic FFT Resolution and Multiplier Reconfiguration for Adaptive Anti-Jamming Communication
Abstract: This paper presents a hierarchical adaptive RF communication system that integrates signal quality-based pre- processing with machine learning-driven signal classification to achieve robust and resource-efficient operation in dynamic, interference-prone environments. Unlike prior art that addresses adaptive RF, ML classification, or anti-jamming individually, this work uniquely combines real-time SNR/RSSI-based signal strength estimation with dynamic FFT size selection (64-, 256- , or 512-point) and arithmetic-level multiplier reconfiguration (CORDIC, Distributed Arithmetic, and hybrid …
Published in International Journal of Radio Frequency Innovations · Vol. 4, Issue 1, 2026 Read article
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Recent Progress in Magnesium Hybrid Metal Matrix Composites: Processing, Properties, and Applications
Abstract: Magnesium hybrid composites have emerged as promising materials to meet the growing demands of advanced sectors such as biomedical, aerospace, defense, automotive, electronics, and marine industries. However, the inherent drawbacks of magnesium, specifically low wear resistance, have encouraged scientists to develop magnesium-based MMC with improved mechanical properties and thermal properties. To achieve this, various mixtures of reinforcement are employed. These include ceramics with high strength and wear resistance; solid lubricants …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1287–1301 Read article
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Enhanced Mechanical and Tribological Performance of Magnesium–Boron Carbide Composites Fabricated via Stir Casting for Lightweight Structural Applications
Abstract: This study investigates the fabrication and evaluation of properties of magnesium (Mg) matrix composites reinforced with boron carbide (B₄C) for lightweight structural applications. Stir casting was employed to incorporate B₄C particles at varying weight fractions (0%, 3%, 6%, and 9%) into the magnesium matrix. The influence of B₄C on density, porosity, hardness, tensile strength, and wear resistance was systematically examined. Theoretical density increased from 1.74 g/cm³ (pure Mg) to 1.88 …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 29–39 Read article
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Enhancement of Flexural Strength in FDM-Printed Components through Taguchi-Based Process Parameter Optimization
Abstract: Additive manufacturing (AM), especially Fused Deposition Modeling (FDM), has emerged as a widely adopted and versatile method for producing three-dimensional components. The process involves the deposition of a thermoplastic filament in a semi-molten state, which solidifies in successive layers to form the final structure. While this method enables the production of complex geometries at relatively low cost, the printed parts often exhibit inferior surface quality and reduced mechanical performance compared …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 272–280 Read article
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Investigation on mechanical performance of 3D printed PLA-Kraft Lignin composites
Abstract: Bio-based polymer composites are becoming more popular due to the growing need for sustainable and biodegradable materials in additive manufacturing. PLA-kraft lignin composites were created and their mechanical performance in fused deposition modeling (FDM) applications was assessed in this work. Polylactic acid (PLA) was mixed with Kraft lignin, a sustainable by-product of the paper industry, at weight percentages of 0%, 1%, 3%, 5%, and 7%. Melt blending was utilized to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 1002–1015 Read article