Journal of Research on Engineering Structures and Materials

🌱 Exploring Sustainable Materials in Construction with RESM Journal 🌱 🔍 New Article: "Influence of Palm Oil Fuel Ash as Agricultural Waste on the Environment and Strength of Geopolymer Concrete" 🌍🏗️ 📚 We are excited to present the latest review by Khamees N Abdulhaleem, Hussein M. Hamada, Ali Majdi, and Salim T. Yousif, focusing on the environmental and strength impacts of using Palm Oil Fuel Ash (POFA) in Geopolymer Concrete (GPC). This research contributes significantly to the growing body of knowledge on sustainable construction materials and their potential to reduce environmental footprints. 🛠️🌿 🔬 Key Insights: - Sustainable Utilization: POFA, a by-product of the palm oil industry, is reviewed for its potential as a Supplementary Cementitious Material (SCM) in GPC, providing an eco-friendly alternative to conventional materials. 🌾🔧 - Environmental Impact: The review thoroughly examines the chemical composition of POFA, noting that its silica oxide content ranges from 55.7% to 69.02%, influenced by the source and treatment conditions. The study also discusses the environmental benefits and challenges of incorporating agricultural waste into construction practices. 🌍🔬 - Strength Properties: The review highlights the varying effects of POFA on the compressive strength of GPC. In one instance, increasing POFA replacement from 0% to 20% improved compressive strength from 28.1 MPa to 30.1 MPa, while in another, it decreased from 24 MPa to 18.5 MPa for the same replacement level. The research suggests that low replacement levels (0-20%) are generally optimal for strength enhancement. 📈🧱 - Future Directions: The review identifies key areas for further research, emphasizing the need to refine the optimal replacement levels and improve the overall sustainability of POFA in GPC. 🔍💡 🔗 Read the full review to explore how POFA could be a game-changer for sustainable construction practices: https://lnkd.in/duEmKnsw 📑 🌟 Stay at the forefront of sustainable construction materials by following our LinkedIn page! 🔗 University of Kirkuk University of Kirkuk Al Qalam University College Al-Mustaqbal University Nawroz University #SustainableConstruction #GeopolymerConcrete #PalmOilFuelAsh #EnvironmentalImpact #EngineeringResearch #RESMJournal 🚀🏗️📊

🔍 Just Published: "Optimization of Stir Casting Parameters for the Tensile Behavior of Nano Al2O3 and ZrO2 Reinforced Al-Mg-Si Alloy Metal Composites" 🌍🔩 📚 Check out the latest research by Annapoorna K, Shobha R, Bharath V, Rajanna S, Manjunath Vatnalmath, Madeva Nagaral, V Auradi, and C G Shivaprasad, focusing on the optimization of stir casting parameters to enhance the tensile performance of Al-Mg-Si (Al6061) alloy composites. This study is pivotal in advancing the production of high-performance metal matrix composites. 🛠️🔬 🔬 Key Highlights: - Optimization Focus: Unlike traditional studies that use predetermined stir casting parameters, this research employs the Taguchi optimization technique to fine-tune the stir casting process for creating hybrid composites reinforced with nano Al2O3 and nano ZrO2. 📊⚙️ - Advanced Methodology: The ultrasonic-aided stir casting method was utilized, with parameters determined by the Taguchi L16 orthogonal array. The study leverages S/N (Signal to Noise ratio) and regression models to pinpoint optimal process settings and their impact on Ultimate Tensile Strength (UTS). 🧪🔄 - Significant Findings: The research revealed that the composition of nano reinforcements, along with stirring temperature, speed, and time, are crucial in significantly improving the UTS of the Al6061 alloy composites. 📈🔧 🔗 Explore the full article to understand how these optimizations could enhance composite manufacturing practices: https://lnkd.in/gTrySi2C 🌟 Stay updated with the latest research in engineering materials by following our LinkedIn page! 🔗 Visvesvaraya Technological University Ramaiah Institute Of Technology Siddaganga Institute Of Technology (Official) Hindustan Aeronautics Limited Hindustan Aeronautics Limited #StirCasting #MetalMatrixComposites #Optimization #EngineeringResearch #RESMJournal 🚀🔧📊

🔍 New Publication: "Optimization of Process Parameter of FS-Welding of Aluminum-Lithium Alloy (AA8090) Using Desirability Analysis" 🌐🔩 📚 Examine the latest study by Munna Singh Dahiya and Meenu Gupta, exploring the potential of Friction Stir Welding (FSW) for Aluminum Lithium Alloys (AA8090). This research underscores the importance of experimental investigations in optimizing FSW processes to enhance material performance. 🛠️🔍 🔬 Key Highlights: - Optimization Process: The study focuses on critical factors such as Rotational Speed (RS), Tilt Angle (TA), and Welding Speed (WS) to optimize Ultimate Tensile Strength (UTS) and % Elongation (EL) in welded joints. 📈⚙️ - Experimental Setup: Utilizing a Vertical Machine Center (VMC) with a customized fixture and tool, the research employs a regression model based on the Central Composite Design (CCD) of Response Surface Methodology to analyze UTS and EL. 🧪🔄 - Optimal Parameters Identified: The study found that the best results were achieved at 1428 rpm rotational speed, 36.4 mm/min welding speed, and 1.5° tilt angle, with the welded joints showing comparable performance to the parent metal. 🔧📊 - Detailed Analysis: Microstructural analysis, microhardness distribution, and fractography were used to evaluate the effectiveness of the FSW joints, offering deep insights into the welding process's impact on material properties. 🔬🔍 🔗 Read the full article to discover how this research enhances welding practices for high-performance materials: https://lnkd.in/gvR56qHh 📑 🌟 Follow our LinkedIn page for more updates on the latest advancements in engineering structures and materials! 🔗 National Institute of Technology, Kurukshetra, Haryana #FrictionStirWelding #AluminumLithiumAlloys #WeldingOptimization #EngineeringResearch #RESMJournal 🚀🔧📊

Exciting News for Our Journal! We’re pleased to share that the Journal of Research on Engineering Structures and Materials has been accepted into the Ei Compendex index, one of the key engineering-focused databases in the research world. This inclusion marks a positive step forward for our journal, reflecting the hard work and dedication of our entire community. From our committed staff and editors to our talented authors and supportive readers—this accomplishment is a shared success. 🙌💙 Ei Compendex, with its history dating back to 1884 as a trusted resource, will help us reach a broader audience and enhance the visibility of the impactful research we publish. While it's not the final destination, it's certainly a meaningful milestone on our journey to growing our presence in the engineering research community. While this is a major accomplishment, we recognize it as a stepping stone towards our ultimate goal of becoming a leading voice in the engineering research landscape. We remain committed to publishing high quality research and fostering a vibrant academic community. Thank you for your continued support! 🙏 #EiCompendex #EngineeringResearch #AcademicPublishing #Teamwork #Milestone #Innovation

🔍 Just Published: "The Effects of the Quality of Recycled Aggregates on the Mechanical Properties of Roller Compacted Concrete" 🌍🔧 📚 Discover the insightful research by Selma Kaabeche, Mebarek Belaoura, and Ramdane KAHLOUCHE, which explores the impact of using recycled aggregates in Roller Compacted Concrete (RCC). This study sheds light on the potential of sustainable materials in construction. 🌱🏢 🔬 Key Findings: - Recycled vs. Natural Aggregates: The study compares RCC made with varying proportions of recycled aggregates (from 0% to 100%) against those made with natural aggregates. 🧱🔄 - Mechanical and Physical Properties: The research examines crucial properties such as compression resistance, flexion resistance, ultrasonic pulse speed, volume mass, and water absorption rate, observing how these properties change with different levels of recycled aggregate incorporation. 🧪📊 - Pre-Wetting Treatment: Interestingly, pre-wetting the recycled aggregates before mixing did not significantly enhance mechanical strength, highlighting the inherent challenges with recycled materials. 🌊🔍 - Impact of Silica Fume and Slag: Additionally, the study includes 5% silica fume and slag in each composition, offering valuable insights into optimizing RCC for better performance. 🏗️💡 🔗 Read the full article and discover how recycled aggregates could enhance the future of sustainable construction: https://lnkd.in/d6f3QsuE 📑 🌟 Stay informed with the latest advancements in engineering structures and materials! Follow our LinkedIn page for updates on pioneering studies. 🔗 #SustainableConstruction #RecycledAggregates #RollerCompactedConcrete #EngineeringResearch #RESMJournal 🚀🏗️🔧

🔍 Featured Research: "Phenomenological Failure Criteria Analysis of a Composite Bolted Joint Under Multi-Axial Loading Using the Finite Element Method" 🌐🔧 📚 Discover the latest study by Manuela Karla Ribeiro Mathias and Bruno Mikio Fujiwara Marques, focusing on the complex failure modes of Carbon Fiber Reinforced Polymer Composites (CFRP), particularly in bolted joints—critical components in the aeronautical industry. 🛠️💡 🔬 Key Findings: - Failure Criteria Evaluation: The study analyzes the Hashin, Puck, and LaRC04 phenomenological failure criteria using finite element method (FEM) simulations, providing crucial insights for selecting the most suitable criterion for different scenarios. 📊🛠️ - Simulation Details: Numerical simulations were performed on a 2D model of a carbon/epoxy composite bolted joint under multi-axial loads, following ASTM D5661 dimensions. These simulations help in understanding the performance and reliability of CFRP bolted joints under various loading conditions. 🔍🧪 Results Overview:   - Hashin Criterion: Found to be moderately conservative and suitable for general analysis.   - Puck Criterion: The most conservative, recommended for analyses where safety margins are a priority.   - LaRC04 Criterion: The least conservative, ideal for detailed examinations of compression failure modes. ⚙️📏 🔗 Read the full article to explore how these criteria can enhance the design and reliability of CFRP components in critical applications: https://lnkd.in/dzvV_TSX 📑 🌟Keep up with the latest advancements in engineering structures and materials! Follow our LinkedIn page for updates on pioneering studies. 🔗 Instituto Federal de Educação, Ciência e Tecnologia de São Paulo - IFSP #CFRP #FiniteElementMethod #FailureCriteria #AerospaceEngineering #RESMJournal 🚀📊🌍

🔍 Newly Published: "Study the Effects of TiB2 Reinforcement on the AA-2014 Matrix Fabricated by Friction Stir Processing" 🌟🔩 📚 Dive into the innovative research by Jitendra Kumara, Vipin Kumar Sharma, and Ajay Partap Singh, focusing on the transformative impact of TiB2 nanoparticles on the AA-2014 surface composite, crafted through Friction Stir Processing (FSP). 🌍🛠️ 🔬 Key Highlights: - Microstructure Enhancements: The study reveals optimal bonding between TiB2 and the AA-2014 substrate at 1200 rpm, outperforming other FSP parameters. However, microstructural analysis also highlighted challenges like particle agglomeration and void formation. 🧪🔍 - Significant Hardness Boost: Microhardness of the composite soared from 88 HV (AA-2014) to 138 HV (AA-2014/3% TiB2 @1200 rpm), thanks to TiB2 nanoparticles and FSP-induced changes. This marks a substantial improvement in surface hardness. 📈💪 - Tensile Strength Breakthrough: The Ultimate Tensile Strength (UTS) saw a remarkable increase from 290 MPa (AA-2014) to 465 MPa (AA-2014/3% TiB2 @1200 rpm), highlighting the effectiveness of uniform TiB2 dispersion during FSP in enhancing mechanical properties. 💥🔧 🔗 Explore the full study to understand how TiB2 reinforcement and FSP can enhance material performance: https://lnkd.in/dFBAwyWQ 📑 🌟 Stay connected with the latest research in engineering structures and materials! Follow our LinkedIn page for updates on pioneering studies. 🔗 IIMT University, Meerut IIMT UNIVERSITY #MaterialsScience #FrictionStirProcessing #SurfaceComposite #TiB2Reinforcement #EngineeringInnovation #RESMJournal 🚀🔩🔍

🔍 Newly Published Research: "Optimal Positioning and Distribution of Magnetorheological Dampers" 🌐🔧 📚 Explore the comprehensive study by Chandan K, Daniel C, Anuroop P, S Vivekananda Sharma, Arunraj E, and Hemalatha G, which dives deep into optimizing magnetorheological damper placement to enhance building resilience during seismic events. 🌍💡 🔬 Key Insights: - Advanced Modeling: The researchers employed detailed mathematical models and mode shapes that cover over 95% of a building's mass to identify the most effective damper positions. These positions are critical for minimizing structural damage and preventing collapse during earthquakes. 📊🏗️ - Customized Damper Distribution: The study provides a nuanced approach to damper distribution based on different load conditions:   - For 20kN and 30kN loads: Optimal distribution involves placing 14 to 20 dampers, with strategic placements from the ground to the fifth floor.   - For 90kN load: A more intensive setup with 44 dampers is suggested, distributed across lower levels to upper floors, achieving an optimization score of 45.84.   - For 200kN load: 17 dampers are positioned to maximize efficiency, resulting in an optimization score of 49.616. 🏢🔩 - Cost-Effective Strategy: The proposed placement and distribution strategies not only improve seismic resistance but also reduce the overall costs associated with damper installation in typical building practices. 💰🌍 🔗 Read the full article to explore how these insights could enhance building safety: https://lnkd.in/d92-Dfrf 📑 🌟 Stay ahead with the latest research in engineering structures and materials! Follow our LinkedIn page for updates on cutting-edge studies. 🔗 Karunya Institute of Technology and Sciences Karunya Institute of Technology and Sciences Hindustan Institute of Technology and Science, Kancheepuram National Institute of Technology Meghalaya #SeismicSafety #StructuralEngineering #MagnetorheologicalDampers #EngineeringInnovation #RESMJournal 🚀🏢🔧

🌍 Examining Ground Motion Directionality's Impact on Ductility of 3D RC Structures 🏗️ Discover the insightful research by Marco Breccolotti and Mattia Pucci on the "Influence of the Ground Motion Directionality on the Global Ductility of 3D RC Structures". 🌐📊 📚 Study Highlights: - Investigates how ground motion directionality affects the global ductility (μs) of framed reinforced concrete (RC) structures. 🔄 - Considered various factors such as angle of attack (θ), longitudinal reinforcement ratio (ρl), dimensionless axial stress (υ), and mechanical ratio of transverse reinforcement (ωwd). 📐 - Utilized detailed nonlinear modeling to replicate the behavior of RC elements in the plastic field, accounting for concrete confinement effects. 🧪 🔬 Key Findings: - Nonlinear static simulations conducted using OpenSees code revealed capacity curves and corresponding global ductility. 📈 - Plastic hinges were observed to develop on columns due to the combined effect of bending moments from beams framing into the same joint at angles θ of 30° and 45°. 🏗️ - Formation of soft-storey mechanisms notably reduced global ductility (μs). 📉 - A design formula is proposed to prevent such collapse mechanisms in high-ductility class framed RC structures. 🧩 💡 This study highlights the critical impact of ground motion directionality on the ductility of RC structures and offers valuable design insights to enhance structural resilience. 🌍 📑 For a comprehensive understanding of this significant research, read the full study: https://lnkd.in/d66NM-f2 📑 🚀 Stay updated with cutting-edge research! Follow our LinkedIn page for more insights. 🔗 Università per Stranieri di Perugia #ReinforcedConcrete #Ductility #GroundMotion #EarthquakeEngineering #EngineeringResearch #RESMJournal 🌍🏗️📊

🔧 Evaluating Self-Compacting Concrete for Superior Concrete Repair Applications 🏗️ Explore the comprehensive study by benaddi hachemi, Billel Rebai, Tidjani Messas, and Mohamed Salhi on "Evaluation of Self-Compacting Concrete for Concrete Repair Applications". 🧱🔍 📚 Study Highlights: - Investigated the use of Self-Compacting Concrete (SCC) as a repair material for concrete structures, formulating various SCC mixtures with different compositions. 🧪 - Examined fresh properties like fluidity, deformability, and stability to optimize SCC mixtures for effective repair applications. 🌊 - Assessed mechanical properties including compressive strength, tensile strength, and elastic modulus, comparing SCC to vibrated ordinary concrete (VOC). 📊 🔬 Key Findings: - SCC demonstrated superior mechanical performance compared to VOC, with higher compressive and tensile strengths. 📈 - Incorporation of mineral additives like limestone fillers (30%), blast furnace slag (40%), and silica fume (10%) enhanced SCC’s mechanical properties and bond strength. 🏗️ - Bond strength between SCC repair material and existing concrete was evaluated using indirect tensile bond and splitting tensile bond tests, showing improved adhesion. 🔗 💡 This study underscores the potential advantages of using SCC for concrete repair, offering enhanced mechanical performance and adhesion characteristics over traditional VOC. 🌍 📑 For a deeper understanding of this innovative research, read the full study: https://lnkd.in/d2evgXrF 📑 🚀 Stay updated with cutting-edge research! Follow our LinkedIn page for more insights. 🔗 #SelfCompactingConcrete #ConcreteRepair #SustainableConstruction #EngineeringResearch #RESMJournal 🏗️🔧📊