Radha Krishna Mallik¹, Gokarna Bahadur Motra¹, Krishna Shrestha^2,3,*

Structural Durability & Health Monitoring, Vol.20, No.3, 2026, DOI:10.32604/sdhm.2025.075535 - 18 May 2026

Abstract The study proposes a low-cost friction damper designed to enhance the seismic performance of buildings, particularly in regions where existing structures lack adequate seismic resistance and conventional friction dampers are cost-prohibitive or require specialized fabrication. Friction dampers are displacement-controlled devices that dissipate energy through constant slip-force action and relative displacement between attachment points, typically ensuring elastic structural behavior under Design Basis Earthquake (DBE) demands and controlled yielding under Maximum Considered Earthquake (MCE) conditions. To address limitations in current practice, the proposed device integrates the damping mechanism of vehicle leaf-spring suspension systems with rotational plate friction… More >

Xianshi Fang¹, Zexian Guo^1,*, Kaihong Tang¹, Guanzhu Ren²

Frontiers in Heat and Mass Transfer, Vol.24, No.2, 2026, DOI:10.32604/fhmt.2026.077372 - 30 April 2026

Abstract To investigate the complex phase change behavior in two-phase condensation flow of hydrocarbon mixtures in inclined tubes, a numerical model was developed in Fluent using the Volume of Fluid method combined with the Lee phase change model. A mixing effect correction was incorporated to enhance the simulation accuracy, and its impact on the flow and heat transfer characteristics was systematically evaluated. Numerical simulations were performed and subsequently corrected for mixing effects; the final results show good agreement with classical experimental data. The average deviation of the heat transfer coefficient is −0.76%, while that of the… More >

Abdullah Abdullah^1,*, Ghulam Mohi Ud Din², Tipu Sultan³, Muhammad Aleem¹, Muhammad Shareef Shazil¹

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.3, 2026, DOI:10.32604/fdmp.2026.077023 - 31 March 2026

Abstract Turbulent flow over gravel beds in open channels is a fundamental yet complex problem in hydraulic engineering, as flow behavior is highly sensitive to channel geometry and bed roughness. In this study, the Volume of Fluid (VOF) method coupled with the standard k-ε turbulence model is employed to simulate air-water interactions over gravel beds, with open boundary conditions capturing realistic channel-atmosphere interactions. Numerical simulations are performed to examine how channel design influences the relationship between the friction factor (f) and the Reynolds number (RN). Velocity and VOF contours indicate peak flow near the inlet, with… More > Graphic Abstract

Mojgan Mohammadi¹, Naser Khaji^2,*

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.078945 - 30 March 2026

Abstract The failure of liquid storage tanks, one of the most critical infrastructure systems widely used, during severe earthquakes can have direct or indirect impacts on public safety. The significance of their safe performance even after destructive earthquakes and their potential for operational use underscores the necessity of appropriate seismic design. Hence, seismic isolation, specifically base isolation, has gained attention as a seismic control method to reduce damage to these infrastructures by increasing their vibration period. One prevalent type of seismic isolator used for tanks and other structures is the friction pendulum system (FPS) isolator. However,… More >

Yasir Nawaz¹, Nabil Kerdid², Muhammad Shoaib Arif³, Mairaj Bibi^4,*

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.2, 2026, DOI:10.32604/cmes.2026.077616 - 26 February 2026

Abstract A high-order hybrid numerical framework is developed by coupling a three-stage exponential time integrator with a Runge–Kutta scheme for the efficient solution of partial differential equations involving first-order time derivatives. The proposed scheme attains third-order temporal accuracy and is rigorously validated through stability and convergence analyses for both scalar and coupled systems. Its effectiveness is demonstrated by simulating unsteady Eyring-Prandtl non-Newtonian nanofluid flow over a Riga plate with coupled heat and mass transfer under electromagnetic actuation. The physical model accounts for Brownian motion and thermophoresis, and the nanofluid considered is a Prandtl-type non-Newtonian base fluid… More >

Huixin Wei, Baopeng Liao^*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.34, No.1, pp. 1-1, 2025, DOI:10.32604/icces.2025.012367

Abstract Friction behavior at soft-hard material interfaces plays a pivotal role in applications spanning biomedical devices, robotics, and tactile systems. While theoretical frameworks and experimental characterization methods have advanced, it is still difficult to unravel interfacial mechanisms. In this study, a theoretical model is firstly developed to predict static-to-sliding transitions by analyzing geometric evolution and stick-slip dynamics at soft material interfaces. The model quantitatively determines the threshold force for slip initiation, offering predictive insights into The sliding behavior of the interface. Second, an innovative tribometry platform is introduced, combining synchronized optical visualization, mechanical loading, and automated More >

Quanzhou Yao^*, Wenxin Chang, Lin Ye

The International Conference on Computational & Experimental Engineering and Sciences, Vol.34, No.1, pp. 1-1, 2025, DOI:10.32604/icces.2025.011903

Abstract With the rapid advancement of global infrastructure development and the deepening of sustainable development principles, fiber-reinforced polymer (FRP) reinforcement bars have emerged as an innovative alternative to traditional steel reinforcement due to their lightweight, high-strength, corrosion resistance, and fatigue-resistant properties. However, the practical engineering application of FRP bars in concrete structures still faces critical challenges in optimizing the interfacial bond performance between the reinforcement and concrete. This study addresses the scientific bottleneck in rib height design for FRP bars by systematically investigating the evolution mechanism of fiber strain during the rib-forming process through theoretical analysis… More >

Du-Yi Wang¹, Shih-Chen Shi^1,*, Dieter Rahmadiawan^1,2

Journal of Polymer Materials, Vol.42, No.4, pp. 1075-1095, 2025, DOI:10.32604/jpm.2025.072263 - 26 December 2025

Abstract Polymethyl methacrylate (PMMA) is widely used in diverse applications such as protective components (e.g., automotive lamp covers and structural casings), optical devices, and biomedical products, owing to its lightweight nature and impact resistance. However, its surface hardness and wear resistance remain insufficient under prolonged exposure to abrasive environments. In this study, a multi-filler strategy with nano-silica (SiO₂), brominated lignin (Br-Lignin), and cellulose nanocrystals (CNCs) was employed to enhance PMMA tribological properties. SiO₂ provided localized reinforcement, Br-Lignin established stable network structures, and CNCs improved compactness, enabling strong synergistic effects. As a result, the composites achieved up to More >

Xiaoxiao Li, Xiujiang Shi^*, Yusheng Jian, Yaqi Yang, Bailing Guan, Zehong Cai

The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.4, pp. 1-1, 2025, DOI:10.32604/icces.2025.011099

Abstract Based on COMSOL simulation software, the planar Gaussian heat source model was used to simulate and analyze the surface reinforced nickel-based coating on H13 steel, and the optimal process parameters were obtained. Secondly, TiC reinforced nickel base coating was prepared in situ on H13 steel surface by laser cladding technology. The morphology, phase composition, microhardness and friction and wear properties of matrix, single coating and gradient coating were compared by scanning electron microscopy, X-ray diffractometer, microhardness tester and universal friction and wear machine. Finally, the bionic gradient TiC reinforced nickel base coating was prepared on… More >

Chengle Yang, Qingyu Shi, Gaoqiang Chen^*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.3, pp. 1-1, 2025, DOI:10.32604/icces.2025.011530

Abstract The dissimilar friction stir welding (FSW) of aluminum (Al) and magnesium (Mg) alloys occurs at relatively low temperatures, but how the plastic flow happens under these conditions remains unclear. In this study, a computational fluid dynamics (CFD) model was developed to investigate the thermo-mechanical-flow coupled material behavior during the dissimilar friction stir welding of AA6061-T6 Al alloy and AZ31B Mg alloy. The present work established a generation model and a constitutive model for intermetallic compound (IMC) in welding process. An iso-stress mixing model was utilized to determine the viscosity of the Al-Mg-IMC mixture by volume… More >