Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.apacoust.2010.06.007
Title: A coupled edge-/face-based smoothed finite element method for structural-acoustic problems
Authors: He, Z.C.
Liu, G.R. 
Zhong, Z.H.
Cui, X.Y.
Zhang, G.Y.
Cheng, A.G.
Keywords: Edge-based smoothed finite element method (ES-FEM)
Face-based smoothed finite element method (FS-FEM)
Finite element method (FEM)
Meshfree method
Numerical method
Structural-acoustic
Issue Date: Oct-2010
Source: He, Z.C., Liu, G.R., Zhong, Z.H., Cui, X.Y., Zhang, G.Y., Cheng, A.G. (2010-10). A coupled edge-/face-based smoothed finite element method for structural-acoustic problems. Applied Acoustics 71 (10) : 955-964. ScholarBank@NUS Repository. https://doi.org/10.1016/j.apacoust.2010.06.007
Abstract: The edge-based smoothed finite element method (ES-FEM) and the face-based smoothed finite element method (FS-FEM) developed recently have shown great efficiency in solving solid mechanics problems with triangular and tetrahedral meshes. In this paper, a coupled ES-/FS-FEM model is extended to solve the structural-acoustic problems consisting of a plate structure interacting with the fluid medium. Three-node triangular elements and four-node tetrahedral elements are used to discretize the two-dimensional (2D) plate and three-dimensional (3D) fluid, respectively, as they can be generated easily and even automatically for complicated geometries. The field variable in each element is approximated using the linear shape functions, which is exactly the same as that in the standard FEM. The gradient field of the problem is obtained particularly using the gradient smoothing operation over the edge-based and face-based smoothing domains in 2D and 3D, respectively. The gradient smoothing technique can provide a proper softening effect to the model, effectively solve the problems caused by the well-known "overly-stiff" phenomenon existing in the standard FEM, and hence significantly improve the accuracy of the solution for the coupled systems. Intensive numerical studies have been conducted to verify the effectiveness of the coupled ES-/FS-FEM for structural-acoustic problems. © 2010 Elsevier Ltd. All rights reserved.
Source Title: Applied Acoustics
URI: http://scholarbank.nus.edu.sg/handle/10635/54040
ISSN: 0003682X
DOI: 10.1016/j.apacoust.2010.06.007
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

30
checked on Dec 14, 2017

WEB OF SCIENCETM
Citations

23
checked on Nov 17, 2017

Page view(s)

42
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.