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Journal articles on the topic 'Enhanced FEM stability simulations'

Author: Grafiati

Published: 1 June 2024

Last updated: 19 July 2025

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1

Zhang, Yanan, Peigang Jiao, Weibo Du, Guoqing Qi, and Bowen Chen. "Numerical Simulation of Casting Filling Process Based on SPH-FEM Coupling Method." Symmetry 17, no. 4 (2025): 494. https://doi.org/10.3390/sym17040494.

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The coordinated optimization of free-surface dynamics tracking and solid deformation computation remains a persistent challenge in casting filling simulations. While the traditional smoothed particle hydrodynamics (SPH) method suffers from prohibitive computational costs limiting practical applications, the delayed interface updates of the finite element method (FEM) compromise simulation fidelity. This study proposes a symmetric SPH-FEM coupling algorithm that integrates real-time particle-grid data exchange, and validation through ring filling simulations demonstrated close agreement with Sc

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2

Zheng, Zumei, Shasha Zhou, Jun Chen, Naoto Mitsume, and Shunhua Chen. "A Multi-Resolution MPS/FEM Coupling Method for Three-Dimensional Fluid–Structure Interaction Analysis." Journal of Marine Science and Engineering 11, no. 8 (2023): 1483. http://dx.doi.org/10.3390/jmse11081483.

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This work aims to propose an efficient MPS/FEM coupling method for the simulation of fluid–structure interaction (FSI), where the MPS and FEM are respectively employed to account for fluid flows and structural deformation. The main idea of our method is to develop a multi-scale multi-resolution MPS method for efficient fluid simulations in the context of MPS/FEM coupling. In the developed multi-scale MPS method, the fluid domain is discretized into particles of different resolutions before calculation, where particles close to the interest domain will be discretized into high resolution, while

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3

Demin, Vladimir, Alexey Kalinin, Nadezhda Tomilova, et al. "Advanced Digital Modeling of Stress–Strain Behavior in Rock Masses to Ensure Stability of Underground Mine Workings." Civil Engineering Journal 11, no. 3 (2025): 1072–87. https://doi.org/10.28991/cej-2025-011-03-014.

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This study focuses on optimizing underground support systems through advanced numerical modeling and geomechanical assessment. The research aims to refine reinforcement parameters for underground mine workings by analyzing the stress-strain behavior of rock masses using Rocscience RS2 software. The study integrates geological and geotechnical data, including field observations and numerical simulations, to enhance the accuracy of support system designs. The methodology is based on the finite element method (FEM) and the Hoek–Brown softening model, allowing the identification of plastic deforma

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Song, Eun Jeong, Jung Soo Lee, Hyungpil Moon, Hyouk Ryeol Choi, and Ja Choon Koo. "A Multi-Curvature, Variable Stiffness Soft Gripper for Enhanced Grasping Operations." Actuators 10, no. 12 (2021): 316. http://dx.doi.org/10.3390/act10120316.

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For soft grippers to be applied in atypical industrial environments, they must conform to an object’s exterior shape and momentarily change their stiffness. However, many of the existing grippers have limitations with respect to these functions: they grasp an object with only a single curvature and a fixed stiffness. Consequently, those constraints limit the stability of grasping and the applications. This paper introduces a new multicurvature, variable-stiffness soft gripper. Inspired by the human phalanx and combining the phalanx structure and particle jamming, this work guarantees the requi

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Wei, Wei, Songjian Yu, and Baozuo Li. "Research on Magnetic Characteristics and Fuzzy PID Control of Electromagnetic Suspension." Actuators 12, no. 5 (2023): 203. http://dx.doi.org/10.3390/act12050203.

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This paper proposes an electromagnetic suspension with an electromagnetic actuator, which can improve the riding comfort and stability of the vehicle without changing the safety of traditional MacPherson suspension. First, the electromagnetic suspension structure is introduced, and the principle of the proposed actuator is described in detail. Second, a magnetic flux density model of a single PM ring (permanent magnetic ring) and a magnet assembly are built, and a theoretical analysis of the magnetic flux density is carried out for comparison. Then, the magnetic flux distribution of the magnet

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6

Primo, Gustavo S. P., Ramon Silva, Francisco Evangelista, and Marcos H. Oliveira. "Statistical Reliability Analysis for Assessing Bridge Structural Integrity: A Review Paper." Infrastructures 10, no. 7 (2025): 156. https://doi.org/10.3390/infrastructures10070156.

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This article reviews methods for estimating the remaining service life of bridges, focusing on the statistical analysis of reliability indices, which aids in identifying risks and predicting structural failures. Among the methodologies examined, the First-Order Reliability Method (FORM) is highlighted for its effectiveness in calculating failure probabilities based on current deterioration and loading conditions. Sensitivity analysis is also discussed, as it pinpoints the variables that most significantly impact structural stability. Enhanced using the Finite Element Method (FEM), this method

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Kien, Dang Van, Do Ngoc Anh, and Do Ngoc Thai. "Numerical Simulation of the Stability of Rock Mass around Large Underground Cavern." Civil Engineering Journal 8, no. 1 (2022): 81–91. http://dx.doi.org/10.28991/cej-2022-08-01-06.

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Geotechnical problems are complicated to the extent and cannot be expected in other areas since non-uniformities of existing discontinuous, pores in materials and various properties of the components. At present, it is extremely difficult to develop a program for tunnel analysis that considers all complicated factors. However, tunnel analysis has made remarkable growth for the past several years due to the development of numerical analysis method and computer development, given the situation that it was difficult to solve formula of elasticity, viscoelasticity, and plasticity for the dynamic f

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Msolli, Sabeur. "Shear Instability and Localization in High-Speed Cold Spray Processes: Impact on Particle Fragmentation and Bonding Mechanisms." Materials 18, no. 3 (2025): 490. https://doi.org/10.3390/ma18030490.

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This study investigates the deformation behavior and interfacial phenomena occurring during the high-velocity impact of a copper particle into a copper substrate under various conditions using FEM. It also offers an enhanced physics-based model based on discrete dislocation dynamics simulations to depict newly observed features such as interfacial instabilities and shear localization leading to bonding and particle fragmentation. To investigate bonding mechanisms at the particle–substrate interface, additional simulations using a one-element-thickness model are conducted. These simulations foc

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9

Xiao, Enzhao, Shengquan Li, Ali Matin Nazar, Ronghua Zhu, and Yihe Wang. "Antarctic Snow Failure Mechanics: Analysis, Simulations, and Applications." Materials 17, no. 7 (2024): 1490. http://dx.doi.org/10.3390/ma17071490.

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Snow failure is the process by which the stability of snow or snow-covered slopes is destroyed, resulting in the collapse or release of snow. Heavy snowfall, low temperatures, and volatile weather typically cause consequences in Antarctica, which can occur at different scales, from small, localized collapses to massive avalanches, and result in significant risk to human activities and infrastructures. Understanding snow damage is critical to assessing potential hazards associated with snow-covered terrain and implementing effective risk mitigation strategies. This review discusses the theoreti

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Chen, Peng, Xiaorong Cai, Na Min, et al. "Enhanced Fatigue Resistance of Nanocrystalline Ni50.8Ti49.2 Wires by Mechanical Training." Metals 13, no. 2 (2023): 361. http://dx.doi.org/10.3390/met13020361.

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In this paper, the fatigue resistance of superelastic NiTi shape memory alloy (SMA) wires was improved by combining mechanical training and nanocrystallization. Fatigue tests were performed after mechanical training with a peak stress of 600 MPa for 60 cycles of nanocrystalline (NC) NiTi wires, and the associated microscopic mechanism was investigated by using transmission electron microscopy (TEM) and transmission Kikuchi diffraction (TKD). The results showed that stress-controlled training effectively improved the functional stability (the accumulated residual strain decreased by 83.8% in th

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Lin, Hsun-Yen, and Jyh-Ming Wu. "Piezo-Photocatalytic Water Splitting of MoS₂@Mo₂CT_x Heterostructure Catalyst." ECS Meeting Abstracts MA2024-02, no. 39 (2024): 2611. https://doi.org/10.1149/ma2024-02392611mtgabs.

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A heterostructure comprised of two-dimensional transition metal dichalcogenides (2D-TMDs) and transition metal carbide/nitride (MXenes) was fabricated. The substrate for the growth of 2D MoS2 nanoflowers (NFs) was established using the highly conductive metal phase Mo2CTx MXene. The resulting MoS2@Mo2CTx catalysts exhibited a remarkably enhanced piezocatalytic hydrogen (H2) generation rate, reaching 1164.8 μmol･g-1 h-1, being 4.01 times and 3.06 times higher than the individual pristine Mo2CTx and MoS2 counterparts, respectively. Moreover, with the introduction of light irradiation, the piezo-

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Sudrajat, Oka Akbar, Ladya Cheril Az Zahra, Arum Sinda Santika, Dira Ernawati, and Akbar Sujiwa. "Implant Design Femur Bone using CAD Computation with Variation in Implant Plate Length." FARADAY 1, no. 1 (2025): 39–46. https://doi.org/10.33005/faraday.v1i1.9.

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Femoral fractures are among the most common and severe musculoskeletal injuries, necessitating effective and reliable treatment strategies. This study explores the biomechanical performance of femur implants by evaluating the effects of material selection and implant design using the finite element method (FEM). Three biocompatible materials—titanium alloy Ti-6Al-4V, stainless steel, and PEEK—were analyzed under linear elastic isotropic conditions. Implant designs varied in length (10.02 mm, 13.37 mm, and 15.60 mm) with a fixed head thickness of 3 mm. Simulations assessed stress distribution,

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Puttiwongrak, Avirut, Thatree Deekaoropkun, Khin Phyu Sin, Krit Saowiang, Pittaya Jamsawang, and Piti Sukontasukkul. "Basal Heave Stability Analysis of Excavations in Bangkok Soft Clay with Confined Groundwater Recovery Using Numerical Modeling." Modelling 6, no. 1 (2025): 21. https://doi.org/10.3390/modelling6010021.

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This study addresses the critical issue of basal heave stability in deep excavations within Bangkok’s soft clay, particularly under conditions of confined groundwater recovery. Historical failures in excavation projects highlight the urgent need for effective stability assessments that account for fluctuating groundwater levels. Utilizing a comprehensive dataset derived from case studies and numerical simulations, this research employs the finite element method (FEM) to analyze the interactions between excavation depth, undrained shear strength, and groundwater dynamics. The findings reveal th

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Chen, Shuang, Yan Chen, Jie Hong, Ge Tang, and Yanming Chen. "Optimizing the configuration of grid-forming and grid-following control in doubly-fed wind farms considering machine-side dynamics." Journal of Physics: Conference Series 2902, no. 1 (2024): 012048. https://doi.org/10.1088/1742-6596/2902/1/012048.

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Abstract With the growing integration of renewable energy, particularly wind power, into power systems, the effectiveness of wind farms in supporting grid stability is increasingly critical. Traditional grid-following (GFL) controls often fall short in weak grids with low short-circuit ratios (SCR), leading to stability issues. In contrast, grid-forming (GFM) controls, which simulate synchronous machine behavior, offer enhanced grid support and stability. This study investigates the optimization of control strategies for doubly-fed induction generator (DFIG) wind farms by comparing four config

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15

Gil, Javier, Clara Sandino, Miguel Cerrolaza, et al. "Influence of Bone-Level Dental Implants Placement and of Cortical Thickness on Osseointegration: In Silico and In Vivo Analyses." Journal of Clinical Medicine 11, no. 4 (2022): 1027. http://dx.doi.org/10.3390/jcm11041027.

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The purpose of this research is to study the biomechanical response of dental implants in bone-level type locations, 0.5 mm above and below the bone level. In addition, the influence of the thickness of the cortical bone on osseointegration is determined due to the mechanical loads transfer from the dental implant to the cortical and trabecular bone. The thicknesses studied were 1.5 mm and 2.5 mm. Numerical simulations were performed using a finite element method (FEM)-based model. In order to verify the FEM model, the in silico results were compared with the results obtained from a histologic

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Casazza, Marco, and Fabrizio Barone. "Cultural heritage structures and infrastructures vibration monitoring: vibration sensors metrological characteristics identification through finite elements modelling and simulation." Acta IMEKO 13, no. 2 (2024): 1–9. http://dx.doi.org/10.21014/actaimeko.v13i2.1800.

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The preservation of historical structures and infrastructures requires a multidisciplinary approach, based on preventive and planned conservation actions. For such a purpose, digital technologies are increasingly used to adaptively model and verify the behavior and stability of heritage assets. However, the reliability of model outputs depends on the accuracy on input data, which, in turn, depends on an appropriate choice of sensors, based on their technical characteristics. This is why an accurate design of monitoring system is crucial. Considering the installation and operation costs for a t

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17

Gajbhiye, Shilpa S. "Design and Analysis of Load Carrying Chassis Structure of Robotics Tank System." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem46607.

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Abstract - The chassis of a robotic tank system plays a vital role in supporting essential components such as motors, sensors, and payloads while ensuring the system’s performance, stability, and durability. The design of the chassis is critical, as it directly impacts the robot's ability to bear loads, withstand environmental conditions, and maintain reliable mobility. This paper discusses the importance of chassis design, focusing on load-bearing capacity, structural integrity, mobility, stability, durability, and cost-effectiveness. Key considerations include material selection, design conf

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18

Sanchaniya, Jaymin Vrajlal, Inga Lasenko, Vishnu Vijayan, et al. "A Novel Method to Enhance the Mechanical Properties of Polyacrylonitrile Nanofiber Mats: An Experimental and Numerical Investigation." Polymers 16, no. 7 (2024): 992. http://dx.doi.org/10.3390/polym16070992.

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This study addresses the challenge of enhancing the transverse mechanical properties of oriented polyacrylonitrile (PAN) nanofibers, which are known for their excellent longitudinal tensile strength, without significantly compromising their inherent porosity, which is essential for effective filtration. This study explores the effects of doping PAN nanofiber composites with varying concentrations of polyvinyl alcohol (PVA) (0.5%, 1%, and 2%), introduced into the PAN matrix via a dip-coating method. This approach ensured a random distribution of PVA within the nanofiber mat, aiming to leverage

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19

Ren, Qinghua, Junhong Chen, Xin Liu, Songsong Zhang, and Yuandong Gu. "Design and 3D FEM Analysis of a Flexible Piezoelectric Micromechanical Ultrasonic Transducer Based on Sc-Doped AlN Film." Sensors 22, no. 21 (2022): 8100. http://dx.doi.org/10.3390/s22218100.

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In this paper, a flexible piezoelectric micromachined ultrasonic transducer (PMUT) based on Scandium (Sc)-doped Aluminum Nitride (AlN) film was designed and modeled by the three-dimensional finite element method (3D-FEM). The resonant frequency of 218.1 kHz was reported. It was noticeable that a high effective electromechanical coupling coefficient (k2eff) of 1.45% was obtained when a combination of a flexible PI and a thin Si layer was used as the PMUT supporting structure layer. Compared with a pure Si supporting layer counterpart, the coupling coefficient had been improved by 110.68%. Addit

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Elnaggar, Mohamed F. "Design and Implementation of Crowbar and STATCOM for Enhanced Stability of Grid-Tied Doubly Fed Induction Wind Generators." International Journal of Robotics and Control Systems 4, no. 3 (2024): 1263–78. http://dx.doi.org/10.31763/ijrcs.v4i3.1498.

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These days, one of the most used layouts in the wind power industry is a variable-speed doubly-fed induction wind generator (DFIWG). For providing active power (P) and reactive power (Q) control during grid failures, this research examines the DFIWG. The system's transient behavior is examined under normal and abnormal circumstances. Through control of rotor side (RSC) and grid side (GSC) converters, Q assistance for the grid, and power converter stress reduction, the suggested control approach achieves system stability while enabling DFIWG to operate smoothly during grid failures. The DFIWG i

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21

Nguyen, Phuong Tuan, Luan Nhat Vo, Truong Xuan Dang, Hoa Van Vu Tran, and Tuan Anh Nguyen. "Assessment of the Impact of Pile Characteristics on the Horizontal Displacement of Retaining Walls under Heavy Rainfall: A Case Study in Vietnam." Engineering, Technology & Applied Science Research 15, no. 2 (2025): 21208–13. https://doi.org/10.48084/etasr.9957.

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This study evaluates how pile characteristics influence the Horizontal Displacement (Ux) of river retaining walls in Ho Chi Minh City, Vietnam, during heavy rainfall, which floods the walls, while the river water level remains at its lowest. The study utilizes Finite Element Method (FEM) in combination with statistical methods, such as linear regression and Pearson correlation, to examine the effects of pile factors. These factors are the Number of Piles (NoP), Pile Spacing (PS), Pile Diameter (PD), and Pile Type (PT) based on the Ux of the river retaining walls. Finite element simulations are

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Słowiński, Jakub J., Maciej Roszak, Mikołaj Kazimierczak, Grzegorz Skrzypczak, and Maksymilian Stępczak. "Enhanced Mechanical Performance of Resin-Infused 3D-Printed Polymer Lattices." Polymers 17, no. 8 (2025): 1028. https://doi.org/10.3390/polym17081028.

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Fused deposition modelling (FDM) technology provides a flexible and cost-effective solution for the manufacture of polymer components, enabling the precise design of structures and the incorporation of a variety of composite materials. Its development is confirmed by numerous studies on fibre reinforcements (e.g., GFRP and CF) and thermosetting resin modifications, resulting in improved impact strength and fracture toughness and increased thermal stability of products. The final mechanical properties are significantly influenced by processing parameters (e.g., fill density, layer height, and p

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Hatipoglu, Kenan, Mohammed Olama, and Yaosuo Xue. "Model-Free Dynamic Voltage Control of Distributed Energy Resource (DER)-Based Microgrids." Energies 13, no. 15 (2020): 3838. http://dx.doi.org/10.3390/en13153838.

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In this paper, we present a new control technique for sustaining dynamic voltage stability by effective reactive power control and coordination of distributed energy resources (DERs) in microgrids. The proposed control technique is based on model-free control (MFC), which has shown successful operation and improved performance in different domains and applications. This paper presents its first use in the voltage stability of a microgrid setting employing multiple synchronous generator (SG)-based and power electronic (PE)-based DERs. MFC is a computationally efficient, data-driven control tech

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Y, Heman*, and M. Sushama Dr. "NEW-FANGLED ASSIMILATION OF A PV-WIND ENERGY SYSTEM WITH ENHANCED EFFICIENCY." International Journal of Engineering Sciences & Research Technology 5, no. 3 (2016): 5–22. https://doi.org/10.5281/zenodo.46977.

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A novel integration scheme of solar photovoltaic (PV) with a large capacity doubly excited induction generator-based wind energy system is described. The proposed scheme uses both the grid- and rotor-side power converters of doubly fed induction generator to inject PV power into the grid. Thus, it renders a cost-effective solution to PV-grid integration by obviating the need for a dedicated converter for PV power processing. The system is able to feed significantly large PV power into the grid compared to an equivalent rating inverter used in the conventional PV-grid system. The proposed schem

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Li, Shanjun, Zehua Yang, Qiang Wan, et al. "Increase in Wear Resistance of Traction Wheel via Chromizing: A Study Combining Experiments and Simulations." Coatings 12, no. 9 (2022): 1275. http://dx.doi.org/10.3390/coatings12091275.

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The wear failure of traction wheels in orchard transport severely restricts the stability of orchard conveyors and impedes the mechanization of orchard work. In this study, the thermal-diffusion chromizing method was employed to increase the hardness of a traction wheel for the enhancement of wear resistance. The results show that a uniform and dense chrome coating with a thickness of 16 μm was formed on the surface. The coating was revealed to have a hardness of 1752.7 HV and benefited from the formation of Cr-C compounds. A friction test and a wear simulation test under both dry-friction and

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Omigbodun, Francis T., and Bankole I. Oladapo. "Enhanced Mechanical Properties and Degradation Control of Poly(Lactic) Acid/Hydroxyapatite/Reduced Graphene Oxide Composites for Advanced Bone Tissue Engineering Application." Biomimetics 9, no. 11 (2024): 651. http://dx.doi.org/10.3390/biomimetics9110651.

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This study explores the enhancement of poly(lactic acid) (PLA) matrix using calcium hydroxyapatite (cHAP) and reduced graphene oxide (rGO) for developing composite scaffolds aimed at bone regeneration applications. The PLA composites were fabricated through solvent evaporation and melt extrusion and characterized by various techniques, including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and mechanical testing. The incorporation of cHAP and rGO significantly improved the thermal,

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Singh, Spoorthi, Mohammad Zuber, Naman Bhat, et al. "Bio-Inspired Robotics: Kinematic and Gait Analysis of Quad and Hexa-Legged Systems." Journal of Robotics and Control (JRC) 6, no. 2 (2025): 757–68. https://doi.org/10.18196/jrc.v6i2.23905.

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Navigating hazardous environments, such as areas with fire risks, wild animal activity, or inaccessible terrains, poses significant challenges, necessitating the development of bio-inspired robotic systems. This study focuses on the biomechanical design and kinematic analysis of a spider-mimicking robot, specifically examining quad and hexa-legged configurations to optimize movement efficiency and stability. The research employed 3D Computer-Aided Design (CAD) in Fusion 360 to model and simulate the robot's leg framework, analyzing deformation, tension, and strain. Fused Deposition Modelling (

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Ma, Kunqi, Keyuan Chen, and Qiong Liu. "A Hippocampus-likeRobotic Arm Based on Controllable Airbag." Theoretical and Natural Science 122, no. 1 (2025): 1–11. https://doi.org/10.54254/2753-8818/2025.gl24463.

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Traditional soft robotic manipulators with circular cross-sections face inherent challenges in balancing flexibility and stiffness, particularly in precision-demanding applications such as medical and agricultural tasks. Inspired by the biomechanical superiority of the seahorse tailcharacterized by its square-prismatic vertebral architecture and modular segmentationthis study proposes a novel variable-stiffness manipulator. The design integrates 3D-printed rigid skeletons (mimicking seahorse osteoderms) and silicone-based joints with embedded pneumatic airbags, enabling anisotropic stiffness m

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Nyika, Andrew. "Transforming the Mobile Money Ecosystem: Eliminating All Transaction Fees to Drive Digital Growth and Economic Inclusion." International Journal of Economic Policy 5, no. 2 (2025): 56–81. https://doi.org/10.47941/ijecop.2628.

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Purpose: The purpose of this research is to examine and propose a transformative policy shift toward eliminating all consumer-facing mobile money transaction fees in Zambia. It evaluates the feasibility of replacing Mobile Money Operators’ (MMOs) traditional revenue streams from fees with interest income generated from customer trust accounts, aiming to significantly accelerate financial inclusion and digital financial service (DFS) adoption nationwide. Methodology: This applied policy research utilized a mixed-method approach, combining quantitative financial modeling, comparative internation

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Nelson, DhanpalChetty, Sharma Gulshan, N. Bokoro Pitshou, and Kumawat Manoj. "Application of optimal control for wind integrated power system." Application of optimal control for wind integrated power system 32, no. 2 (2023): 654–63. https://doi.org/10.11591/ijeecs.v32.i2.pp654-663.

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This paper presents the modeling and application of an optimal controller for frequency and tie-line power stability for a two-area interconnected hydro-thermal power plant having tandem compound non-reheat turbines integrated with wind power generation having doubly fed induction generator (DFIG) wind turbines in each area. The power system is interconnected using AC tie-lines. The designed optimal controller was implemented and the system dynamic responses for three power system model states were obtained considering a 1% load fluctuation in one of the areas. The optimal control strategy pre

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Chetty, Nelson Dhanpal, Gulshan Sharma, Manoj Kumawat, and Pitshou N. Bokoro. "Application of optimal control for wind integrated power system." Indonesian Journal of Electrical Engineering and Computer Science 32, no. 2 (2023): 654. http://dx.doi.org/10.11591/ijeecs.v32.i2.pp654-663.

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<div align="center"><span>This paper presents the modeling and application of an optimal controller for frequency and tie-line power stability for a two-area interconnected hydro-thermal power plant having tandem compound non-reheat turbines integrated with wind power generation having doubly fed induction generator (DFIG) wind turbines in each area. The power system is interconnected using AC tie-lines. The designed optimal controller was implemented and the system dynamic responses for three power system model states were obtained considering a 1% load fluctuation in one of the a

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Vogt, Alexander, Holger Geßwein, Johann Chable, et al. "K_0.5FeF₃ as a New Zero-Strain Cathode Material for Lithium-Ion Batteries." ECS Meeting Abstracts MA2023-02, no. 2 (2023): 260. http://dx.doi.org/10.1149/ma2023-022260mtgabs.

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The stability of the cathode is of crucial importance for the service life of lithium-ion batteries (LIB). In the cathode, the lattice parameter usually changes during (de-)insertion of lithium, which causes various signs of aging that have a negative effect on the capacity of the cell. This problem can be tackled using a specific type of materials called zero-strain (ZS) materials. These materials do not show any (de-)intercalation-induced structural changes and stresses. Such a zero-strain effect was already demonstrated with fluorine-containing materials [1] and even for the similar materia

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Wang, Qian, Jianmin Bian, Yihan Li, Chunpeng Zhang, and Fei Ding. "Bimolecular Reactive Transport Experiments and Simulations in Porous Media." Water 12, no. 7 (2020): 1931. http://dx.doi.org/10.3390/w12071931.

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For reactive transport process in porous media, limited mixing and non-Fickian behavior are difficult to understand and predict. To explore the effects of anomalous diffusion and limited mixing, the column-based experiments of bimolecular reactive migration were performed and simulated by the CTRW-FEM model (continuous time random walk-finite element method). Simulated parameters were calibrated and the correlation coefficients between modeled and observed BTCs (breakthrough curves) were greater than 0.9, indicating that CTRW-FEM can solve over-prediction and tailing problems effectively. Poro

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Šapalas, Vaidotas, Michail Samofalov, and Viačeslavas Šaraškinas. "FEM STABILITY ANALYSIS OF TAPERED BEAM‐COLUMNS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 11, no. 3 (2005): 211–16. http://dx.doi.org/10.3846/13923730.2005.9636352.

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This paper deals with a theoretical and a numerical analysis of tapered beam‐columns subjected to a bending moment and an axial force. A standard FEM code COSMOS/M has been used for a numerical estimation of a critical load multiplier. It has been assumed that the critical force of an axially loaded tapered column could be calculated in an analogous way as for uniform member just with an additional correction factor αn. Similarly, a critical bending moment of the tapered column subjected to a pure bending could be determined by using a correction factor αm. A large number of simulations carrie

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Lai, Xin, Li Sheng Liu, Qi Wen Liu, Dong Feng Cao, Zhen Wang, and Peng Cheng Zhai. "Slope Stability Analysis by Peridynamic Theory." Applied Mechanics and Materials 744-746 (March 2015): 584–88. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.584.

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Peridynamic simulations have been carried out to perform the slope stability analysis. A slope is first modelled with discretized particles in 2D. Then the non-ordinary state-based Peridynamic model is utilized. In order to obtain a more realistic behavior of the soil, Drucker-Prager constitutive model is used to describe the mechanic properties of soil. Results show great agreements with the FEM results, while provides the dynamic slide progress in the post-failure process.

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Lakruwan, Mihira, Akiyoshi Kamura, and Motoki Kazama. "Effect of 3D water table profile of horizontal drains on slope stability and idealization of 3D-FEM flow modeling to 2D-FEM flow modeling." E3S Web of Conferences 347 (2022): 03002. http://dx.doi.org/10.1051/e3sconf/202234703002.

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Horizontal drains (HDs) are commonly used in the groundwater regime management of landslides. The groundwater table (GWT) profile of slopes with HDs have a complicated formation in three-dimensional (3D) space, requiring 3D analyses to obtain accurate results. However, owing to the complexity of 3D simulations, idealized two-dimensional (2D) cross sections are widely used in numerical simulations of such slopes. Unfortunately, stabilities are overestimated by 2D simulations because the 3D variation of the GWT is neglected. Finite element analysis is performed in this study to evaluate the effe

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De Basabe, Jonás D., and Mrinal K. Sen. "Grid dispersion and stability criteria of some common finite-element methods for acoustic and elastic wave equations." GEOPHYSICS 72, no. 6 (2007): T81—T95. http://dx.doi.org/10.1190/1.2785046.

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Purely numerical methods based on finite-element approximation of the acoustic or elastic wave equation are becoming increasingly popular for the generation of synthetic seismograms. We present formulas for the grid dispersion and stability criteria for some popular finite-element methods (FEM) for wave propagation, namely, classical and spectral FEM. We develop an approach based on a generalized eigenvalue formulation to analyze the dispersive behavior of these FEMs for acoustic or elastic wave propagation that overcomes difficulties caused by irregular node spacing within the element and the

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Suresh Kumar Sahani. "AI-Enhanced Finite Element Method (FEM) for Structural Analysis." Journal of Electrical Systems 20, no. 1 (2025): 661–76. https://doi.org/10.52783/jes.8946.

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The Finite Element Method (FEM) has been the foundation of computational structural analysis for a very long time; yet, because to its high computing demand, it has limits when used to applications that are data-intensive, real-time, and large-scale. In response, this research presents a hybrid framework that combines traditional finite element method (FEM) with artificial intelligence (AI), more especially supervised deep learning, in order to improve the effectiveness and scalability of mathematical models of structural systems. The AI-Enhanced FEM framework that has been proposed has been t

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Nugroho, Willy Satrio, Fikrul Akbar Alamsyah, and Carlos Nicolas Quispe Chanampa. "THERMAL SIMULATION OF THE CZOCHRALSKI PROCESS FOR SILICON CRYSTAL GROWTH USING FINITE ELEMENT MODELING APPROACH." International Journal of Mechanical Engineering Technologies and Applications 5, no. 2 (2024): 195–206. http://dx.doi.org/10.21776/mechta.2024.005.02.8.

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This study investigates the thermal dynamics of the Czochralski (CZ) process for silicon crystal growth through numerical simulations. The simulation method of this study is based on finite element method (FEM) heat transfer simulation. The FEM simulation was performed using triangular mesh in half cross section of CZ system with real material properties. The analysis of heat transfer mechanisms includes conduction, convection, and radiation which reflect the impact of cooled argon convection on crystal growth. The simulations reveal that convection currents driven by cooled argon has a crucia

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NOCHETTO, RICARDO H., and JAE-HONG PYO. "THE GAUGE-UZAWA FINITE ELEMENT METHOD PART II: THE BOUSSINESQ EQUATIONS." Mathematical Models and Methods in Applied Sciences 16, no. 10 (2006): 1599–626. http://dx.doi.org/10.1142/s0218202506001649.

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The Gauge-Uzawa finite element method (GU-FEM)13 is a fully discrete projection type method to solve the evolution Navier–Stokes equations, which overcomes many shortcomings of projection methods and displays superior numerical performance. In this second part, we apply the GU-FEM to the evolution Boussinesq equations, which model the thermal driven motion of incompressible fluids. We show unconditional stability and error estimates for velocity, pressure and temperature, the three physical unknowns. We use a new variational approach13 and realistic regularity assumptions. We conclude with two

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Kalyani, V. Mohana, J. Preetha Roselyn, C. Nithya, and D. Devaraj. "Enhanced Crowbar Protection for Fault Ride through Capability of Wind Generation Systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 4 (2016): 1366. http://dx.doi.org/10.11591/ijpeds.v7.i4.pp1366-1376.

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Due to increasing demand in power, the integration of renewable sources like wind generation into power system is gaining much importance nowadays. The heavy penetration of wind power into the power system leads to many integration issues mainly due to the intermittent nature of the wind and the desirability for variable speed operation of the generators. As the wind power generation depends on the wind speed, its integration into the grid has noticeable influence on the system stability and becomes an important issue especially when a fault occurs on the grid. The protective disconnection of

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Lv, Xueman, Shuo Wang, Zihe Xu, et al. "Structural Mechanical Properties of 3D Printing Biomimetic Bone Replacement Materials." Biomimetics 8, no. 2 (2023): 166. http://dx.doi.org/10.3390/biomimetics8020166.

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One of the primary challenges in developing bone substitutes is to create scaffolds with mechanical properties that closely mimic those of regenerated tissue. Scaffolds that mimic the structure of natural cancellous bone are believed to have better environmental adaptability. In this study, we used the porosity and thickness of pig cancellous bone as biomimetic design parameters, and porosity and structural shape as differential indicators, to design a biomimetic bone beam scaffold. The mechanical properties of the designed bone beam model were tested using the finite element method (FEM). PCL

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Litak, Grzegorz, Mirosław Kondratiuk, Piotr Wolszczak, Bartłomiej Ambrożkiewicz, and Abhijeet M. Giri. "Energy Harvester Based on a Rotational Pendulum Supported with FEM." Applied Sciences 14, no. 8 (2024): 3265. http://dx.doi.org/10.3390/app14083265.

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The proposed energy harvesting system is based on a rotational pendulum-like electromagnetic device. Pendulum energy harvesting systems can be used to generate power for wearable devices such as smart watches and fitness trackers, by harnessing the energy from the human body motion. These systems can also be used to power low-energy-consuming sensors and monitoring devices in industrial settings where consistent ambient vibrations are present, enabling continuous operation without any need for frequent battery replacements. The pendulum-based energy harvester presented in this work was equippe

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Mohd Saim, Noraida, and Anuar Kasa. "Prediction Reinforced Slope Stability Using Pile Using Adaptive Neuro-Fuzzy Inference System (ANFIS) Model." Jurnal Kejuruteraan 36, no. 2 (2024): 591–99. http://dx.doi.org/10.17576/jkukm-2024-36(2)-19.

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Predictive analysis using artificial intelligence (AI) has transformed the landscape of forecasting analysis in various research fields. The advancements in AI modelling algorithms have enhanced decision-making, trend identification, and process optimization. In geotechnical engineering, AI assists in predicting soil behaviour, structural stability, and slope stability. The AI model discussed in this paper is the Adaptive Neuro-Fuzzy Inference System (ANFIS). In this study, the ANFIS model predicts slope stability by examining the Factor of Safety (FOS) value. Slope stability analyses reinforc

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Belachew, M., C. Arson, and J. D. Frost. "Insights from Studies on the Spatial Distribution of Chambers in Ant Nests." IOP Conference Series: Earth and Environmental Science 1480, no. 1 (2025): 012100. https://doi.org/10.1088/1755-1315/1480/1/012100.

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Abstract Underground structures found in nature (e.g. ant nests) are complex in their topology. This study aims to draw inspiration from structures made by Harvester ants (Pogonomyrmex Badius) by analyzing the geometric features and understanding the underlying mechanical stability. We fit triaxial ellipsoids to individual chambers and used an analytical solution to establish the stress zones of influence (ZOI) of the individual chambers. The entire nest was modeled using the Finite Element Method (FEM) and the arching mechanisms were visualized in conjunction with the stress ZOIs and their ov

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González-Barbosa, Erick-Alejandro, Sergio-Alberto Hernández, José-Joel González-Barbosa, Héctor Castro-Mosqueda, Fernando Jurado-Pérez, and José-Roberto Razo-Hernández. "Behavior and Analysis of Stainless Steel Wires Under Straight Bending." Journal of Manufacturing and Materials Processing 9, no. 7 (2025): 205. https://doi.org/10.3390/jmmp9070205.

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The study aimed to establish effective tools and methodologies for optimizing the bending process of metal wires, particularly focusing on the performance of SUS304 stainless steel in manufacturing torsion springs. This includes addressing challenges like spring-back and ensuring product quality and lifespan. The research employed a combination of analytical approaches, computer simulations using the Finite Element Method (FEM), and mechanical tests to validate the bending process. The mathematical analysis provided a theoretical framework, while FEA simulations allowed for the assessment of s

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Giżejowski, M. A., R. B. Szczerba, M. D. Gajewski, and Z. Stachura. "Beam-Column In-Plane Resistance Based on the Concept of Equivalent Geometric Imperfections." Archives of Civil Engineering 62, no. 4 (2016): 35–72. http://dx.doi.org/10.1515/ace-2015-0108.

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AbstractAssessment of the flexural buckling resistance of bisymmetrical I-section beam-columns using FEM is widely discussed in the paper with regard to their imperfect model. The concept of equivalent geometric imperfections is applied in compliance with the so-called Eurocode’s general method. Various imperfection profiles are considered. The global effect of imperfections on the real compression members behaviour is illustrated by the comparison of imperfect beam-columns resistance and the resistance of their perfect counterparts. Numerous FEM simulations with regard to the stability behavi

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Hüser, Lucie, Tobias Pahl, and Peter Lehmann. "Polarization dependency of the 3D transfer behavior in microsphere enhanced interferometry." EPJ Web of Conferences 266 (2022): 10006. http://dx.doi.org/10.1051/epjconf/202226610006.

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Enhancing the lateral resolution limit in optical microscopy and interferometry is of great interest in recent research. In order to laterally resolve structures including feature dimensions below the resolution limit, microspheres applied in the optical near-field of the specimen are shown to locally improve the resolution of the imaging system. Experimental and simulated results following this approach obtained by a high NA Linnik interferometer are analyzed in this contribution. For further understanding of the transfer characteristics, measured interference data are compared with FEM (fini

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Kumar, Avishek, Deepshikha Ghosh, and Mithun Radhakrishna. "Surface Patterning for Enhanced Protein Stability: Insights from Molecular Simulations." Journal of Physical Chemistry B 123, no. 40 (2019): 8363–69. http://dx.doi.org/10.1021/acs.jpcb.9b05663.

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Ortner, Michael, Neosha Navaei, and Martin Lenzhofer. "Modeling Planar Fluxgate Structures." Proceedings 2, no. 13 (2018): 830. http://dx.doi.org/10.3390/proceedings2130830.

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Planar fluxgate structures have been the focus of multiple experimental studies. However, theoretical treatises are still limited to the classical models that describe 3D structures. In this paper we derive an effective fluxgate equation for planar systems, dealing with strong stray fields and direct coupling, and show the stability and applicability of the Vacquier implementation. To support the theoretical model, FEM simulations are performed that also provide means of layouting planar fluxgates by pure magnetostatic simulation.

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