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3901
Simulation of size effects on the optical properties of KTP nanoparticles
Published 2024-07-01“…This study employs COMSOL Multiphysics software and the finite element method (FEM) in order to examine the effects of particle size (10 to 100 nm) on the optical properties of spherical KTP nanoparticles, including refractive index dispersion, scattering cross-section, band gap energy, and cut-off wavelength. …”
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3902
Numerical simulation and experimental investigation of pressure riveting connection using the smoothed particle Galerkin method
Published 2025-01-01“…Subsequently, three-dimensional finite element models for press-in push-out and press-in twist-out are established to simulate the riveting process and meet the requirements for quality testing of riveted joints. …”
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3903
Numerical and Experimental Failure Analysis of Carbon Fiber-Reinforced Polymer-Based Pyrotechnic Separation Device
Published 2020-01-01“…In this paper, cutting tests were carried out on CFRPs for the failure analysis of CFRPs under LSC, and nonlinear finite element analysis (FEA) was performed to characterize the evolution of LSC cutting in CFRPs. …”
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3904
Optimizing design and stability of open pit slopes in Tolay coal mine, Ethiopia
Published 2025-01-01“…Stability was evaluated using Limit Equilibrium Methods (LEM) with Slide software and Finite Element Methods (FEM) using Phase2. Geological surveys revealed mudstone, siltstone, and claystone layers up to 39 m deep, with a 10 m coal seam. …”
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3905
A Longitudinal-Bending Hybrid Linear Ultrasonic Motor and Its Driving Characteristic
Published 2022-01-01“…The dynamic analysis of the stator is carried out by using finite element software. The structure dimension of the stator and the driving frequency under the working mode are determined. …”
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3906
Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine
Published 2017-10-01“…Stress analysis has been conducted by using Niemann methods and Lewis equation. Finite element methods also have been conducted by using commercial software where the stress was obtained on the root of gear by modeling with pitting, without pitting, and matting. …”
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3907
Static assessment of brittle/ductile notched materials: an engineering approach based on the Theory of Critical Distances
Published 2014-10-01“…The Theory of Critical Distances has been proven to predict accurate results, but, conventionally, requires two key ingredients to be implemented: the first is a stress-distance curve which can be obtained relatively easily by means of any finite element software, the second is two additional material parameters which are determined by running appropriate experiments. …”
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3908
Modeling of Electric Field and Dielectrophoretic Force in a Parallel-Plate Cell Separation Device with an Electrode Lid and Analytical Formulation Using Fourier Series
Published 2024-12-01“…The distributions of the potential and electric fields obtained by the analytical solution were compared with those from numerical simulations using finite element method software to verify their accuracy. …”
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3909
Study on the Influence and Deformation Control of Rich Water Foundation Excavation on Adjacent Buildings
Published 2024-12-01“…Taking the foundation pit of the Suzhou Chunshenhu Road Expressway Reconstruction Project as an example, the excavation process of the foundation pit was numerically simulated using a three-dimensional finite element method. The measured data and simulated data of the lateral deformation of the enclosure structure, surface settlement deformation of the ground outside the pit, and settlement deformation of the building were compared to analyze the impact of foundation pit construction on adjacent buildings. …”
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3910
Analyzing Cutting Temperature in Hard-Turning Technique with Standard Inserts Through Both Simulation and Experimental Investigations
Published 2025-01-01“…This paper provides a comprehensive and systematic analysis of this issue based on an evaluation of tool geometry in hard turning via finite element analysis (FEA) simulations and experiments. …”
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3911
Temporal and Spatial Effect of Surrounding Rock and Supporting Construction of a Large Soil Tunnel
Published 2021-01-01“…Based on the Zaosheng No. 3 tunnel of the Yinchuan-Xi’an high-speed railway, the surrounding rock pressure, contact pressure of the primary support, and secondary lining and internal force of the secondary lining concrete are systematically tested using a vibrating wire sensor, and the correlation between the advance construction distance and the surrounding rock release rate is studied with finite element software. The results show that the pressure on the surrounding rock is low when the deeply buried soil tunnel is excavated and can be divided into three stages: rapid growth, slow growth, and flattening with time. …”
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3912
Effects of Karst Cave on the Stability of Diaphragm Walls During Ultra-Deep Excavation
Published 2024-01-01“…A three-dimensional finite element analysis was conducted to investigate the effects of the karst cave height, roof thickness, and location on the horizontal displacement of the D-walls. …”
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3913
Crashworthiness Design and Multiobjective Optimization for Hexagon Honeycomb Structure with Functionally Graded Thickness
Published 2019-01-01“…The validation of a numerical analysis model for a UT honeycomb under axial loading is implemented by a nonlinear finite element code LS-DYNA (V971). Furthermore, the multiobjective crashworthiness optimization of an FGT honeycomb subjected to axial quasi-static compression is conducted to maximize specific energy absorption (SEA) and minimize peak crashing force (PCF). …”
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3914
RESEARCH ON THE FATIGUE LIFE CALCULATION METHOD OF HYDRO-TURBINE HEAD COVER CONNECTING BOLTS BASED ON PD-STFA
Published 2020-01-01“…Long-term alternating loads on the connecting bolts of hydro-turbine head cover,which results in fatigue damage causing many serious accidents.Therefore,it is necessary to carry out in-depth study on the calculation method of fatigue life of head cover bolts in order to improve the accuracy of fatigue life calculation.In order to solve the above problems,a method for calculating the fatigue life of Turbine head cover bolts based on combination of power density and short-time Fourier analysis(PD-STFA) is put forward,with emphasis on the influence of coupling action of loading frequency and amplitude load on the fatigue life of head cover bolts.Firstly,the position and stress of dangerous section of connecting bolt are calculated by finite element method;secondly,the average stress of contact surface of bolt head is measured by strain-based hollow pressure sensor,and then the measured average stress of contact surface of bolt head is transformed into the stress of dangerous section according to generalized Hooke’s law;finally,based on linear damage accumulation theory,the fatigue life of the head cover bolts is calculated by PD-STFA method and the traditional rain flow counting method.The calculation results show that the fatigue life of the head cover bolts is 1.966× 10~5 h based on PD-STFA method and 4.113 ×10~5 h based on traditional rain flow counting method.According to the investigation of power plant users,the calculation results based on PD-STFA method are closer to the actual service life of bolts for about 30 years,and can predict the fatigue life of the turbine head cover connecting bolts more accurately,thus providing theoretical guarantee for the safe and stable operation of the hydro-turbine.…”
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3915
Theoretical, Experimental and Numerical Analysis of Behavior of Adhesive Bonded Joints Thin-Walled Aluminum-Composite Structures Under Axial Loading
Published 2024-12-01“…In this study, four L-shaped composites are locally attached to the rectangle from inside the aluminum structure using Araldite 2015 glue. Finite element model is developed to analyze these hybrid structures. …”
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3916
Application and Analysis of an Ionic Liquid Gel in a Soft Robot
Published 2019-01-01“…Based on nonlinear finite element theory, the deformation mechanism of the ILG actuator was deeply analyzed and the deformation of the soft robot when grabbing an object was also analyzed. …”
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3917
Driving Safety Analysis Using Grid-Based Water-Filled Rut Depth Distribution
Published 2021-01-01“…In order to explore the impact of water-filled ruts on driving safety, a three-dimensional (3D) tire-road finite element model is established in this paper to calculate the adhesion coefficient between the tire and the road surface. …”
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3918
Study on Calculation of Bearing Capacity of Axially Loaded CFRP-Strengthened Cold-Formed Thin-Walled Lipped Channel Steel Columns
Published 2020-01-01“…A three-dimensional (3D) finite element model of cold-formed thin-walled steel strengthened by CFRP was established to discuss the bearing capacity under axial compression. …”
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3919
Dynamic Amplification Factor of Shear Force on Bridge Columns under Impact Load
Published 2019-01-01“…Therefore, a novel method to obtain dynamic response under concentrated impact load including the effect of higher-order modes is proposed in the paper, which is based on the modified Timoshenko beam theory (MTB) and the classical Timoshenko beam theory (CTB). Finite element models are conducted to validate the proposed method. …”
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3920
ANALYSIS METHOD OF STRENGTH RELIABILITY SAFETY COEFFICIENT FOR HIGH SPEED TRAIN ALUMINUM CARBODY
Published 2019-01-01“…A certain type of high speed train carbody was taken as research object, the finite element model was established. Based on the code EN 12663-1, the static and fatigue loads were determined, which is considered the aerodynamic load in condition of high speed passing. …”
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