-
981
A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction
Published 2021-01-01“…The correctness and effectiveness of the theoretical model are verified by the finite element method (FEM), showing acoustic reflectance of less than 13.5% at broadband frequencies. …”
Get full text
Article -
982
Numerical analysis of isolated end-flattened steel bars under compression in space trusses
Published 2023-01-01“…The association of numerical analyses using the finite element method (FEM) with previously collected experimental data is performed, and their respective results are the core object of critical analysis in this work. …”
Get full text
Article -
983
Response of a Two-Degree-of-Freedom Vibration System with Rough Contact Interfaces
Published 2019-01-01“…In this model, the force-deflection characteristic of the contact interfaces is determined by finite element analysis. By analyzing the undamped free vibration, it was found that the variation of the second-order natural frequency with amplitude increases with rougher contact interfaces; however, the amplitude has little influence on the first-order natural frequency of the system. …”
Get full text
Article -
984
A Method of Reducing Motor Vibration: Natural Frequency, Damping Ratio, and Vibration Analysis of CFRP Motor Frame
Published 2020-01-01“…The damp ratio of the CFRP motor frame is calculated by the damp prediction model based on strain energy, which is verified by the combination of the finite element method and experiment. The vibration characteristics of the CFRP frame motor are studied experimentally and compared with that of the metal frame motor. …”
Get full text
Article -
985
High-Velocity Impact Behaviour of Prestressed Composite Plates under Bird Strike Loading
Published 2012-01-01“…The modelling methodology for the composite material, delamination interfaces, impact projectile, and preload using the commercial finite element code Abaqus are presented in detail. Finally, the influence of prestress and of different delamination modelling approaches on the impact response is discussed and a comparison to experimental test data is given. …”
Get full text
Article -
986
A Mesoscale Approach for Concrete Block Masonry
Published 2022-01-01“…However, it is still difficult to analyze the mesomodel efficiently due to a large number of operating processes caused by the components’ nonlinear mechanical properties. An efficient finite-element-method-based mesoscale approach for concrete block masonry was introduced in this paper. …”
Get full text
Article -
987
Numerical analysis of isolated end-flattened steel bars under compression in space trusses
Published 2022-12-01“…The association of numerical analyses using the finite element method (FEM) with previously collected experimental data is performed, and their respective results are the core object of critical analysis in this work. …”
Get full text
Article -
988
Miniaturized Wideband Aperture Coupled Microstrip Patch Antenna by Using Inverted U-Slot
Published 2014-01-01“…The theoretical analysis is based on the finite element method (FEM). This design has wide bandwidth, good return loss, VSWR, and radiation characteristics by implanting the inverted U-shaped stepped slots on a single aperture coupled patch. …”
Get full text
Article -
989
Evaluating the safety and the effect of blast loading on the shotcrete together with lattice girder support of tunnels
Published 2023-04-01“…For this purpose, LS-DYNA finite element software was used to assess the dynamic response of the structure to the vibration of the blasting-induced explosion. …”
Get full text
Article -
990
Usporedba analitičkog i numeričkog proračuna vitkih ploča za međudjelovanja sila u ravnini i okomito na ravninu modela
Published 2019-02-01“…Numerički postupak koristi metodu konačnih elemenata i slobodni software FEAP (Finite Element Analysis Program, Univesity of California at Berkeley), u koji je nadograđen vlastiti kod i koji numeričkom iteracijom omogućava rješavanje različitih ravninskih primjera stabilnosti ploča prikazanih o ovom radu.…”
Get full text
Article -
991
Study on the Failure of the Bolted Flange Connection Structure between Stages of Missiles (Rockets) under Transverse Impact Load
Published 2018-01-01“…The sequential failure mechanism of the structure under transverse impact load is analyzed and demonstrated according to the experimental results and the measured data. Additionally, a finite element model to simulate the failure process of the connection structure has been established, and the precision of the model has been verified and validated according to the experimental results. …”
Get full text
Article -
992
Numerical study of transitions in lid-driven flows in shallow cavities
Published 2023-02-01“…The numerical solution of the Navier–Stokes equations modeling incompressible viscous fluid flow in a cavity is obtained via a methodology combining a first order accurate operator-splitting scheme, a $L^2$-projection Stokes solver, a wave-like equation treatment of the advection and finite element space approximations. Numerical results of a lid-driven flow in a cubic cavity show a good agreement with those reported in literature. …”
Get full text
Article -
993
Impact of Thin-Walled Projectiles with Concrete Targets
Published 1995-01-01“…A computational simulation of a test was conducted with an impact/penetration model created by linking a rigid-body penetration trajectory code with a general-purpose finite element code. Scientific visualization of the resulting data revealed that circumferential buckling was induced by the impact conditions considered.…”
Get full text
Article -
994
Inverse Approach to Evaluate the Tubular Material Parameters Using the Bulging Test
Published 2015-01-01“…Tubular material parameters are required for both part manufactory process planning and finite element simulations. The bulging test is one of the most credible ways to detect the property parameters for tubular material. …”
Get full text
Article -
995
The Effects of Crack on the Transmission Matrix of Rotor Systems
Published 2011-01-01“…In the present study, the infl uence of crack on the transmission matrices of the rotor systems is investigated by using the FEM (finite element method) analysis and the HBM (harmonic balance method) technique. …”
Get full text
Article -
996
Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces
Published 2025-01-01“…With the increase of laser etching times, the shear strength of brazed joints shows a gradual decline trend. The finite element results indicate that the microstructure formed by laser etching promotes the generation of thermal residual compressive stress and reduces residual tensile stress.…”
Get full text
Article -
997
Evaluation of an Improved Technique for Geosynthetic-Reinforced and Pile-Supported Embankment
Published 2015-01-01“…To investigate the performance of the FGT embankment, the comparison analyses and parametric studies are conducted by Finite Element Method (FEM). The influencing factors investigated include elastic modulus of soil, tensile stiffness of geosynthetics, pile length, pile spacing, and pile elastic modulus. …”
Get full text
Article -
998
Analysis of Naturally Occurring Radioactive Material (NORM) in shifting earth layers in Piyungan, Bantul
Published 2025-02-01“…We developed a radon well geometry for Piyungan using Finite Element Method principles, and conducted simulations via GNU Octave to assess normal and anomalous conditions. …”
Get full text
Article -
999
The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel
Published 2018-01-01“…A nonlinear coupling model of wheel-track and a finite element calculation model of tunnel and soil were established based on the mechanical character of elastic supporting block ballastless track and the actual parameters of Nanjing soft soil. …”
Get full text
Article -
1000
A Generalized Multiconductor Transmission Line Model and Optimized Method for the Solution of the MTL Equations
Published 2012-01-01“…Then, the optimized solution based on Time domain finite element method (TDFEM) is developed for the above MTL equations. …”
Get full text
Article