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3601
Biomechanical Performance of Menisci under Cyclic Loads
Published 2021-01-01“…This study uses reverse engineering equipment, a 3D optical scanner, and a plastic teaching human body model to build the geometry of knee joint meniscus. Then, the finite element method (FEM) is employed to obtain the dynamic characteristics of the meniscus. …”
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3602
The Numerical and Experimental Investigation of the Change of the Thermal Conductivity of Expanded Polystyrene at Different Temperatures and Densities
Published 2019-01-01“…The numerical study has three stages as the acquisition of electron microscope images (SEM) of expanded polystyrene blocks, modeling of internal structure geometry with CAD program, and realization of solutions with a finite element-based ANSYS program. Findings from experimental and numerical studies and the parameters affecting thermal conductivity were determined. …”
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3603
Design Forces of Horizontal Braces Unlocated at Middle of Columns considering Random Initial Geometric Imperfections
Published 2021-01-01“…In this paper, a large number of column-bracing systems with the horizontal braces unlocated at middle of columns were modelled and analyzed using the finite element method, in which the random initial geometric imperfections of both the columns and the horizontal braces unlocated at middle of columns were well considered by the Monte Carlo method. …”
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3604
An Analytical Solution for the Vibration and Far-Field Sound Radiation Analysis of Finite, Semisubmerged Cylindrical Shells
Published 2021-01-01“…Furthermore, compared with the FEM (the finite element method), the present method is not only reliable but also effective. …”
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3605
Advanced Damage Monitoring in Beam Structures Using Grey Wolf Optimizer and Additional Masses
Published 2025-01-01“…A custom MATLAB code was developed to perform finite element analysis on the numerical model. The results were validated against previously published experimental data, demonstrating the method’s reliability with a 5% difference. …”
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3606
Bending and Shear Experimental Tests and Numerical Analysis of Composite Slabs Made Up of Lightweight Concrete
Published 2016-01-01“…Nonlinear numerical simulations were performed by means of the finite element method (FEM). Four different multilinear isotropic hardening laws were used to simulate the four concretes. …”
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3607
Variable Modal Parameter Identification for Non-Linear Mdof Systems. Part II: Experimental Validation and Advanced Case Study
Published 2000-01-01“…An advanced numerical case study that included both inherent structural damping and non-linear friction damping, was considered next. The linear finite element model of a high-pressure turbine blade was used in conjunction with three local non-linear friction damper elements. …”
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3608
Identification of Behavioral Features of Bridge Structure Based on Static Image Sequences
Published 2020-01-01“…The research results show that the output data of our NRS method were basically consistent with the finite-element prediction (maximum error: 11.11%) and dial gauge measurement (maximum error: 12.12%); the NRS method is highly sensitive to the actual deformation of the bridge structure under different damage conditions and can capture the deformation in a continuous and accurate manner. …”
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3609
Hydraulic Fracturing Mechanism of Rock Mass under Stress-Damage-Seepage Coupling Effect
Published 2022-01-01“…Based on the theory of elasticity and Weibull distribution, the statistical damage constitutive model of rock mass and the finite element numerical algorithm are established, by adopting the COMSOL Multiphysics numerical software and MATLAB program. …”
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3610
Stability Assessment of Concrete Gravity Dams via Multifidelity Surrogate Models
Published 2025-01-01“…To illustrate this, the seismic behavior of a gravity dam is assessed by means of a HF nonlinear finite element model that considers geometric, material, and seismic uncertainties. …”
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3611
The Analytical Method to Compute the Strain on the Soft PSD in Double-Pulse SRM
Published 2019-01-01“…In order to study the failure mechanism of the soft PSD in the double-pulse solid rocket motor (SRM), a two-dimensional axisymmetric finite element method (FEM) model of the stress process of the soft PSD is established. …”
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3612
EFFECT OF THE THICKNESS OF ALLOY LINING ON SEALING PERFORMANCE OF REACTION PRESSURE VESSELS METAL C-RING
Published 2018-01-01“…This article has built C-ring three-dimensional elastic-plastic finite element analysis model. Based on the reliability of the theoretical model which is verified by the experimental study,thickness of alloy lining on the mechanical behavior and sealing performance of C ring are discussed. …”
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3613
Recommendation of Suitable Loading Waveforms and Wavelength Equations for Dynamic Modulus Based on Measured Wheel Loads
Published 2019-01-01“…Specifically, the vertical compressive stress of different pavement structures was calculated by utilizing a three-dimensional finite element program incorporating with the measured wheel loads. …”
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3614
Revampment of surface permanent magnet synchronous motor design for ameliorated torque profile in e‐mobility applications
Published 2021-06-01“…The developed relationship has been validated in the finite element model of the machine. Gradient‐based nonlinear sequential programming has been used to find out the optimum magnetic embrace for the minimised torque ripple. …”
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3615
Seismic Performance and Mechanical Mechanism of Steel-Enhanced Damping Concrete Core Wall with Concealed Steel Plate Bracings under Oblique Loading
Published 2022-01-01“…A much more serious damage was also found in the wall limbs of oblique tested core walls by comparing with the unidirectional test core walls. Then finite element analysis (FEA) was also carried out to study the axial compression ratio (n), coupling beam span-depth ratio (l/h) on the stress distributions, and effective width of the end wall limbs (be). …”
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3616
Theorical study on mechanical properties of AZ31B Magnesium alloy Sheets under multiaxial loading
Published 2016-10-01“…The activity of characterization and modeling of material behavior of the plastic deformation shaping remains a very important research field of activity; the objective of proposing laws of behavior used in computer codes, essentially based on finite element is sufficiently to represent the real behavior of materials. …”
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3617
Joint Optimization of RCC Gravity Dam on Complex Foundation Considering Seismic Dynamic Response
Published 2023-01-01“…To explore the influence of transverse seam cutting of a high RCC gravity dam on the seismic performance of the dam body,this paper takes the RCC gravity dam project of Mahl Hydropower Station in Pakistan with high seismic intensity and sand-mudstone interbedded foundation as the research object.Through the establishment of three-dimensional integral finite element model,the self-compiled viscoelastic dynamic boundary program is introduced.The dynamic response and difference of the dam body under the design earthquake and maximum credible earthquake (MCE) conditions are calculated respectively when the code wave,site wave,and Koyna wave are input.Based on the ratio defined by the design formula of bearing capacity limit state,the seismic safety state of the RCC gravity dam is comprehensively evaluated by simulating the three comparison schemes of 1/3 height,2/3 height,and full joint cutting of transverse seam.The results show that when the code wave is input,under the action of MCE,the resistance effect ratio coefficient η of the dam foundation surface under the 1/3 and 2/3 height schemes of transverse seam cutting is greater than 1.Under the full joint scheme,η<sub>min</sub>=0.91,and the values of η are less than 1 for a total of 6 times within 0.6 s.After comprehensive consideration,the 2/3 height of transverse seam cutting can be used as the construction recommendation scheme.The research results can provide a reference for the optimal layout of the RCC gravity dam project in the conditions of high seismic intensity and complex geology.…”
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3618
Arbitrary 3D multi-body road vehicle modeling for vehicle-infrastructure interaction
Published 2025-03-01“…Although powerful Multi-body Dynamics (MBD) and Finite Element (FE) software can model vehicles with complex configurations in great detail, their utilization is limited by high costs and long computation times. …”
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3619
Study on Stability Characteristics of Earth Rock Dam Slope under Different Rainfall Conditions Combined with the Variation of Reservoir Water Level
Published 2021-01-01“…To study the influence of rainfall and the variation of reservoir water level on the stability characteristics of earth rock dam slope,based on the principle of unsaturated seepage,this paper conducts the finite element simulation of dam slope stability under different rainfall intensities,different rainfall types (three in total) and different variation rates of reservoir water level.The results show that:①When there is no rainfall,the variation rate of water level mainly affects the time when the safety factor of upstream and downstream dam slopes tends to be stable,and the variation range of safety factor of downstream dam slope is smaller than that of upstream dam slope.②When the different intensities of rainfall and the variation of reservoir water level occur simultaneously,the influence of rainfall intensity on the safety factor of upstream dam slope is small.The most dangerous condition of upstream dam slope is that the water level falling rate is 4 m/d and the rainfall intensity is 40 mm/d,and the safety factor is 1.298;while that of downstream dam slope is that the water level rising rate is 4 m/d and the rainfall intensity is 40 mm/d,and the safety factor is 1.443.③When different types of rainfall and the variation of reservoir water level occur simultaneously,the analysis of dam slope stability can be divided into three stages,and the safety factor changes with the rainfall type at each stage presents complex characteristics.The study provides a reference for correctly understanding the stability law of earth rock dam slope under different intensities and types of rainfall combined with the variation of reservoir water level.…”
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3620
A Novel Excavation and Construction Method for an Extra-Long Underwater Tunnel in Soft Soils
Published 2021-01-01“…To investigate the tunnel deformation during excavation, a finite element analysis combined with field monitoring data was adopted, indicating that the magnitude of the tunnel deformation was notably less than those reported from other excavation projects. …”
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