A computationally efficient finite element model with perfectly matched layers applied to scattering from axially symmetric objects

2007 ◽  
Vol 122 (3) ◽  
pp. 1472-1485 ◽  
Author(s):  
Mario Zampolli ◽  
Alessandra Tesei ◽  
Finn B. Jensen ◽  
Nils Malm ◽  
John B. Blottman
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Axially Symmetric ◽  
Perfectly Matched Layers ◽  
Computationally Efficient ◽  
Matched Layers

Predicting Wave Propagation Through Inhomogeneous Soils Using a Finite-Element Model Incorporating Perfectly-Matched Layers

2015 ◽  
Author(s):  
Simon Jones
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Element Model ◽  
Perfectly Matched Layer ◽  
Surface Velocity ◽  
Perfectly Matched Layers ◽  
Local Soil

A 2D, plane-strain, finite element model, with perfectly-matched layer elements acting as absorbing boundaries, is used to investigate the effect of soil inhomogeneity on resultant surface vibration. The stiffness and mass matrices for the perfectly-matched layer element is derived and included for reference. Stochastic variability of the soil’s shear wave velocity is introduced using a K-L expansion; the shear wave velocity is assumed to have a log-normal distribution and a modified exponential co-variance kernel. Results suggest that local soil inhomogeneity can significantly affect surface velocity predictions; 90% confidence intervals showing 7dB averages and peak values up to 11dB are computed. This is a significant source of uncertainty and should be considered when using predictions from models assuming homogeneous soil properties.

A computationally efficient finite element model of wire and arc additive manufacture

2013 ◽  
Vol 70 (1-4) ◽  
pp. 227-236 ◽  
Author(s):  
J. Ding ◽  
P. Colegrove ◽  
J. Mehnen ◽  
S. Williams ◽  
F. Wang ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Additive Manufacture ◽  
Computationally Efficient

scholarly journals Methodology for Developing a Macro Finite Element Model of Lithium-Ion Pouch Cells for Predicting Mechanical Behaviour under Multiple Loading Conditions

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1921
Author(s):  
Richard Beaumont ◽  
Iain Masters ◽  
Abhishek Das ◽  
Steve Lucas ◽  
Arunn Thanikachalam ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Cell Structure ◽  
Lithium Ion ◽  
Element Model ◽  
Confined Compression ◽  
Computationally Efficient ◽  
Internal Cell ◽  
Bending Load ◽  
Modelling Methodology

To assist in light weighting of electric vehicles by improving the volumetric and gravimetric energy density and the structural performance of the battery pack, a modelling methodology based on a macro finite element model of a pouch cell has been developed. This model treats the core cell structure as a homogeneous orthotropic honeycomb block with the pouch material being defined as an orthotropic fabric with compressive stress elimination. The model considers five compression and bending load cases simultaneously and allows a level of element discretisation that is computationally efficient and appropriate for inclusion in full vehicle and sub-system simulations. The methodology is scalable in that it can be applied to a range of chemistries, external geometries and internal cell constructions. When considering stacks of cells, the model is predictive for both lateral compression and three-point bend, but further work is required to improve the confined compression response.

Development of a Computationally Efficient Full Human Body Finite Element Model

2015 ◽  
Vol 16 (sup1) ◽  
pp. S49-S56 ◽  
Author(s):  
Doron Schwartz ◽  
Berkan Guleyupoglu ◽  
Bharath Koya ◽  
Joel D. Stitzel ◽  
F. Scott Gayzik
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Human Body ◽  
Element Model ◽  
Computationally Efficient

A Finite Element Model for the Design of Local Skin Flaps

1986 ◽  
Vol 19 (4) ◽  
pp. 807-824
Author(s):  
Wayne F. Larrabee ◽  
J.A. Galt
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Skin Flaps ◽  
Local Skin

New Finite Volume–Multiscale Finite-Element Model for Solving Solute Transport Problems in Porous Media

2021 ◽  
Vol 26 (3) ◽  
pp. 04021002
Author(s):  
Yifan Xie ◽  
Zhenze Xie ◽  
Jichun Wu ◽  
Yong Chang ◽  
Chunhong Xie ◽  
...  
Keyword(s):  
Finite Element ◽  
Porous Media ◽  
Finite Element Model ◽  
Solute Transport ◽  
Finite Volume ◽  
Element Model ◽  
Multiscale Finite Element ◽  
Transport Problems
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