Article
Thermodynamics
Muhammad Bilal Hafeez, Marek Krawczuk, Kottakkaran Sooppy Nisar, Wasim Jamshed, Amjad Ali Pasha
Summary: The use of hybrid nanoparticles to improve thermal processes has implications for various interventions in different sectors. This paper investigates the impacts of ternary nanoparticles on the thermal characteristics of hyperbolic tangent materials. It explores flow describing equations under heat production, non-Fourier heat flux, and an induced magnetic field. Boundary layer analysis and finite element techniques are employed to model and solve the complex generated partial differential equations.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Nanoscience & Nanotechnology
Dustin A. A. Gilbert, Mi-Young Im, Kai Liu, Peter Fischer
Summary: The first-order reversal curve (FORC) method is a macroscopic measurement technique that can extract quantitative and microscopic properties of hysteretic systems. In this study, magnetic transmission x-ray microscopy (MTXM) was used to perform local element-specific FORC measurements on a 20 nm thick film of CoTb. The microscopy results revealed the step-by-step domain evolution under the magnetic field cycling protocol and provided a direct visualization of the mechanistic interpretation of FORC diagrams. The comparison with magnetometry FORCs showed good quantitative agreement. Moreover, MTXM's high spatial resolution and element-specific sensitivity enabled the measurement of FORCs in small regions or specific phases within multicomponent systems, including buried layers in heterostructures. The ability to perform FORCs on very small features was demonstrated with the MTXM-FORC measurement of a rectangular microstructure with vortex-like Landau structures. This work demonstrated the combination of two powerful techniques to gain quantitative insight into nanoscale magnetic behavior.
Article
Computer Science, Information Systems
Lv Zhongbin, Xiaohui Liu, Bo Zhang, Tao Yaguang, Fangyu Li, Li Qing, Bo Yan
Summary: By establishing models for electric power fittings, transmission lines, and tension insulator strings, the study focused on the maximum dynamic tension of conductors during ice coating and shedding processes. Results indicated that for isolated span transmission lines, the maximum dynamic tension of the conductor exceeded the static tension with conductor icing only when the ice-shedding section was small. In multi-span transmission lines, the maximum dynamic tension of the conductor approached or exceeded the static tension after conductor icing under any ice-shedding condition.
Article
Mechanics
Pawan Kumar, S. P. Harsha
Summary: In this study, the vibration response of porous functionally graded piezoelectric plates with electro-thermal loading was investigated using finite element formulations. The results showed that the material's unevenness and porosity distribution have an impact on the frequency, and the frequency decreases with an increase in the a/h ratio.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Materials Science, Multidisciplinary
Quoc Tuan Pham, Trung Nguyen-Thoi, Jinjin Ha, Young-Suk Kim
Summary: This study proposes a hybrid method combining curve-fitting and inverse finite element analysis to identify the parameters of the Kim-Tuan hardening model over large strain ranges. By calibrating the hardening laws, the stress-strain relationship of sheet metals can be effectively captured.
MECHANICS OF MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Jai Kumar Sharma, Sateesh Kumar, Nishant Kumar, S. M. Mozammil Hasnain, Shatrudhan Pandey, Ahmed Farouk Deifalla, Adham E. Ragab
Summary: The first-order shear deformation theory (FSDT) was used to study the natural frequency response of functionally graded piezoelectric plates subjected to static electrical and mechanical strain. A monomorph model for a functionally graded piezoelectric plate with material properties changing according to sigmoid law with respect to plate thickness was considered. A three-dimensional finite element model with a free tetrahedral element mesh was created to investigate variations in the FGPM plate's free vibration boundary conditions, composition, and geometry. The non-dimensional natural frequency of FGPM plates initially decreases considerably and then remains almost constant with an increase in volume fraction index when material property is graded by power law. When material properties are varied by sigmoid law, the non-dimensional natural frequency remains virtually constant with an increase in volume fraction index. FGPM plates have a lower non-dimensional natural frequency if the thickness to width ratio is greater. Clamped-Clamped FGPM plates (C-C-C-C) have higher non-dimensional natural frequencies compared to Clamped-Free FGPM (C-F-C-F) and Simply Supported Free FGPM (S-F-S-F).
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
P. Das, M. A. Islam, S. Somadder, M. A. Hasib
Summary: This study investigates the thermo-mechanical behavior of FGM hollow cylinders under mechanical loading and thermal stresses. The results indicate that the properties of the cylinder can be altered by changing the non-dimensional parameter beta, and the effect of various boundary conditions on stress fields is significant, with thermal boundary conditions having a more dominant influence.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Peyman Rezaei Baravati, Seyed Mohammad Hassan Hosseini, Majid Moazzami
Summary: The article introduces the method of accurate simulation of fast transient phenomena and partial discharge research based on winding modeling, proposing the CMTL model and improved RLC model as solutions. The improved RLC model is shown to have the same accuracy as the CMTL model in terms of frequency validity range and computational complexity.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Engineering, Manufacturing
Martin Dix, Welf-Guntram Drossel, Berthold Schlecht, Ruben Bauer, Verena Kraeusel, Mike Lahl, Carsten Ulrich, Eric Hensel, Joachim Regel, Jonas Boettger, Thomas Rosenloecher
Summary: The development of modern gearing systems requires interdisciplinary and holistic approaches. Herringbone gearings have potential for compact gearbox designs and relatively quiet running properties. Joint development of manufacturing process steps and consideration of their influence on operational behavior is essential for advantageous application of herringbone gear designs. Gear rolling and power skiving processes show technical feasibility with high quality results and short processing times. Calculations and simulations are used to design process parameters and resulting gear wheel geometry. The impact of specific manufacturing processes on gear wheel properties are discussed.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Matthias Baray, David Levadoux, Jean-Rene Poirier
Summary: In this paper, we present a new numerical scheme for efficiently solving scattering problems involving elongated and flat heterogeneous dielectric materials. The scheme uses a quantized tensor train (QTT) algorithm to compress the integral operators of an integro-differential formulation, resulting in small memory footprint and fast matrix-vector product.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Zhongbin Lv, Yaguang Tao, Xiaohui Liu, Zhongfei Ye, Hongpan Li, Yuntao Sun, Bo Yan
Summary: This paper investigates the variations in the holding force of preformed helical fitting under different geometric parameters. By analyzing the geometric structure and conducting secondary development using ABAQUS finite element software, it is found that the holding force of preformed helical fitting increases with the decrease in molding aperture and pitch length, and has a linear positive correlation with the pitch number. Moreover, the holding force increases with the armor rod diameter.
Article
Engineering, Electrical & Electronic
Mengqi Xu, Ke Ma, Quan Zhong, Marco Liserre
Summary: Previous studies focused only on the frequency-domain response of thermal impedance, neglecting the temperature behavior of other parts of power semiconductor devices. This article proposes a novel perspective to study thermal dynamics by analyzing heat flow behaviors, revealing that the heat flow of power semiconductor devices behaves like a multi-layer low-pass filter. A new modeling method of heat flow is developed to comprehensively describe the heat flow behaviors of power modules at full bandwidth.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Construction & Building Technology
Yuhang Li, Yang Deng, Aiqun Li
Summary: Wooden architectural heritage in East Asia holds high historical, cultural, and scientific value, thus requiring comprehensive protection. A simplified finite element model of dou-gongs was developed to investigate their hysteresis performance quantitatively. The study reviewed types of Song-style dou-gongs, determined eight parameters, and compared predicted hysteresis behaviors with experimental results to validate accuracy and rationality.
JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES
(2021)
Article
Engineering, Mechanical
Tai-Ho Yu
Summary: This study investigates the dispersive properties and resonant frequencies of ridge waves around piezoelectric circular ridge waveguides, using numerical and experimental methods. The research proposes an effective approach to inversely calculate the elastic constants and geometric parameters of the circular piezoelectric ridge waveguides.
JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS
(2021)
Article
Engineering, Electrical & Electronic
Keita Morimoto, Akito Iguchi, Yasuhide Tsuji
Summary: An efficient finite-element-method-based scattering operator (FEM-SO) is proposed in this paper, which utilizes field-based propagation operators as boundary conditions to handle arbitrary light waves, applicable to arbitrary structures. An interface matrix is introduced to address structural discontinuities at the connecting boundary of scattering operators. Numerical examples demonstrate the effectiveness of this approach.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Gabriele Milani, Marco Valente
ENGINEERING FAILURE ANALYSIS
(2015)
Article
Engineering, Multidisciplinary
Elisa Bertolesi, Gabriele Milani, Roberto Fedele
COMPOSITES PART B-ENGINEERING
(2016)
Article
Computer Science, Interdisciplinary Applications
Elisa Bertolesi, Gabriele Milani, Paulo B. Lourenco
COMPUTERS & STRUCTURES
(2016)
Article
Construction & Building Technology
Marco Valente, Gabriele Milani
CONSTRUCTION AND BUILDING MATERIALS
(2016)
Article
Construction & Building Technology
Maurizio Acito, Claudio Chesi, Gabriele Milani, Stefano Torri
CONSTRUCTION AND BUILDING MATERIALS
(2016)
Article
Engineering, Civil
Fabio Minghini, Elisa Bertolesi, Antonio Del Grosso, Gabriele Milani, Antonio Tralli
ENGINEERING STRUCTURES
(2016)
Article
Engineering, Civil
Simone Tiberti, Maurizio Acito, Gabriele Milani
ENGINEERING STRUCTURES
(2016)
Article
Engineering, Civil
Marco Valente, Gabriele Milani
ENGINEERING STRUCTURES
(2016)
Article
Engineering, Civil
G. Milani, M. Rossi, C. Calderini, S. Lagomarsino
ENGINEERING STRUCTURES
(2016)
Article
Mechanics
Gabriele Milani, Alberto Taliercio
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2016)
Article
Polymer Science
G. Milani, T. Hanel, R. Donetti, F. Milani
JOURNAL OF APPLIED POLYMER SCIENCE
(2016)
Article
Materials Science, Characterization & Testing
G. Milani, F. Milani
Proceedings Paper
Mathematics, Applied
G. Milani, T. Hanel, R. Donetti, F. Milani
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2015 (ICNAAM-2015)
(2016)
Proceedings Paper
Mathematics, Applied
G. Milani, T. Hanel, R. Donetti, F. Milani
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2015 (ICNAAM-2015)
(2016)
Proceedings Paper
Physics, Applied
Elisa Bertolesi, Gabriele Milani, Roberto Fedele
INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2015 (ICCMSE 2015)
(2015)