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861
Exact Free Vibration Analysis for Plate Built-Up Structures under Comprehensive Combinations of Boundary Conditions
Published 2020-01-01“…The results show that the DSM gives exact results with as much as 100-fold computational efficiency advantage over the commercial finite element method. Besides, benchmark results are also provided.…”
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862
A Numerical Method of the Euler-Bernoulli Beam with Optimal Local Kelvin-Voigt Damping
Published 2014-01-01“…We firstly use the finite element method (FEM) to obtain a finite-dimensional model based on the original PDE system. …”
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863
Vibration Characteristics and Power Flow Analyses of a Ship Propulsion Shafting System with General Support and Thrust Loading
Published 2020-01-01“…Numerical examples are presented to demonstrate the reliability and effectiveness of the established model by comparing results with those from finite element method. Results show that the current model can deal with the vibration analysis of ship propulsion shafting with thrust loading and distributed bearing very well. …”
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864
Determination of Slope Safety Factor with Analytical Solution and Searching Critical Slip Surface with Genetic-Traversal Random Method
Published 2014-01-01“…However GA needs to be validated with more numeric tests, while Fellenius’ slices method is just an approximate method like finite element method. This paper proposed a new method to determine the minimum slope safety factor which is the determination of slope safety factor with analytical solution and searching critical slip surface with Genetic-Traversal Random Method. …”
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865
Numerical Simulation and Analysis of Diffusion Process for the Leakages of a Tunnel LNG Pipeline
Published 2020-01-01“…Taking a practical project as an example, based on the computational fluid dynamics (CFD), standard k-ε model and finite element method, a mathematical model for the diffusion due to liquefied natural gas (LNG) pipeline leakage in a tunnel was established, and the diffusion process was numerically simulated for three LNG leakage cases. …”
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866
Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns
Published 2016-01-01“…Two-dimensional finite element method is used to determine chloride concentration. …”
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867
Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System
Published 2024-06-01“…Aiming at the design challenges of multi-branch orthogonal compliant vector force measuring system, a finite element method with beam connection units is proposed, and finite element models of dynamometry branches and vector force measuring system are established using this method. …”
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868
Beam-like damage detection methodology using wavelet damage ratio and additional roving mass
Published 2022-09-01“…A Timoshenko beam was modeled in finite element method, and an additional mass was applied along their length. …”
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869
The Effects of Different Materials and Geosynthetics on Embankment Safety and Behavior
Published 2020-07-01“…In this study, road embankment models constructed with new materials obtained from the recycling of natural and waste materials were analysed using the finite element method. The effects of different materials such as sandy silt, rock aggregate, concrete, glass on the road fill were investigated and the results of the analysis of the models using waste fibers in the road fill were compared with the natural conditions. …”
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870
Finite element analysis of the thermomechanical behavior of metal matrix composites (MMC)
Published 2020-01-01“…In this work the finite element method (FEM) was used to analyze the mechanical behavior of the composite materials subjected to the mechanical loading. …”
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871
An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core
Published 2020-01-01“…The mode coupling characteristics, dispersion, confinement loss of the fiber, and the influence on dispersion of some structure parameters are simulated by full-vector finite element method. By using the relationship between phase matching wavelengths and coupling strength with the change of fiber microstructure parameters, an all-solid dual-concentric-core dispersion-compensating photonic crystal fiber is presented. …”
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872
Design Method for Twisting and Reducing Tooth Surfaces of Herringbone Gears for Form Grinding
Published 2024-03-01“…The contact line optimization of the gears before and after the shaping is combined with the Monte Carlo method; and the transmission error of the tooth surface anti-twisting and the tooth surface twisting; and also the tooth surface contact stress are analyzed by the finite element method. Finally, the dynamic characteristics of the tooth surface twist and the tooth surface anti-twist after the shape are compared. …”
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873
STUDY ON VIBRATION FATIGUE OF SUBWAY VEHICLE BODY BASED ON RIGID-FLEXIBLE COUPLING DYNAMICS
Published 2022-01-01“…The reliability of the structure is directly related to the service safety of the vehicle.Based on the existing vehicle body standard EN12663, this paper firstly studies the static strength and fatigue strength of the vehicle body, and identifies the static weak position of the vehicle body under standard load.In order to further identify the weak position of the vehicle body under service conditions, a rigid-flexible coupling dynamic model of subway vehicle is established based on the rigid-flexible coupling dynamic theory and finite element method.Using the modal stress recovery method, the dynamic weak positions in various service modes are identified, and the vehicle modes which contribute a lot to each weak position are analyzed.Finally, based on the subway rigid-flexible coupling dynamic model, the dynamic stress characteristic of vehicle body weak position under various service conditions is analyzed, and the service life of key welds of vehicle body structure is predicted based on monte Carlo sampling and Miner linear cumulative damage theory.…”
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874
Resistance of CNT film toughened composite laminates under high-speed impact: Experimental and numerical study
Published 2025-02-01“…It shows that the FEM (Finite element method) model can effectively predict the impact behavior of CNTs interlaminar toughened composites under high-speed impact. …”
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875
Multiple Reflective Cracks in Semirigid Base Asphalt Pavement under Traffic Load Using XFEM
Published 2022-01-01“…This paper built a three-dimensional layered structure model of semirigid base asphalt pavement with single and double transverse reflective cracks based on the Extended Finite Element Method and fatigue fracture theory. The effects of the number of cracks, crack spacing, and crack length on the stress intensity factors (KI, KII, and Keff) under moving vehicle loads were studied. …”
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876
Vibration Failure Analysis and Countermeasures of the Inlet Pipelines at a Gas Compressor Station
Published 2019-01-01“…A better modification model was applied by performing modal analysis and fluid-structure interaction (FSI) vibration analysis using the finite element method. The effect of countermeasures was evaluated by vibration and pulsation measurements during operation after modifications, which results showed the level of piping vibration and pressure pulsation was within the allowable limits. …”
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877
Numerical study of TRIP transformation in 35NCD16 steel-effects of plate orientation and some criteria
Published 2021-12-01“…The numerical calculation is carried out using the finite element method (FEM), implemented in the Zebulon calculation code. …”
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878
Paths of interactive cracks in creep conditions
Published 2015-10-01“…The Continuum Damage Mechanics constitutive equations are used to describe the creep crack growth problem and Finite Element Method Abaqus system is applied to solve corresponding boundary and initial value problem. …”
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879
Research on Slope Angle of Base for Asphalt-Concrete Core Dam
Published 2023-01-01“…This study takes Miaotang Reservoir in Wushan of Chongqing as an example and uses the nonlinear finite element method (FEM) to analyze the stress and deformation characteristics of concrete bases during the completion and impoundment periods and tensile stress graphs for different base shapes.The effort is to study the influence of the slope angle of the base for the asphalt-concrete core dam on its stress and deformation.The results show that during the completion period,the horizontal displacement,settlement,and principal stress of the base slowly increase as the upstream or downstream slope angle grows.During the impoundment period,the horizontal displacement and settlement of the base gradually decrease with the reduction in the upstream or downstream slope angle.In addition,a greater upstream slope angle can lower the principal stress while a greater downstream slope angle has the opposite effect.In the two working conditions,when the slope angle on both sides of the base increases at the same time,the value of compressive stress will rise,and the value of tensile stress will drop.The change in the slope angle on one side of the base has a stronger influence on the tensile stress graph than that on both sides.It is recommended to use a base with a larger slope angle on the upstream side and a smaller slope angle on the downstream side to improve the stress and deformation within the range of 58° to 90°.…”
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880
Investigations of the Elongational Deformation Induced by Pins in Pin-Barrel Cold-Feed Extruders
Published 2022-01-01“…It is proved that there is elongational deformation when the fluid bypasses the pin, and the elongational deformation is quantitatively calculated. The finite element method is used to simulate the flow field of the screw mixing section of the pin-barrel cold-feed extruder with different specifications. …”
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