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Acoustoelastic Pure-Displacement Elements Based on Biot's Poromechanics Theory
Citation
Guadalupe Suarez, Viana Lida, Militello, C. and Recuero López, Manuel (2012). Acoustoelastic Pure-Displacement Elements Based on Biot's Poromechanics Theory. "Computers and structures", v. 96-97 ; pp. 54-60. ISSN 0045-7949. https://doi.org/10.1016/j.compstruc.2012.01.00.
Description
| Title: | Acoustoelastic Pure-Displacement Elements Based on Biot's Poromechanics Theory |
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| Author/s: |
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| Item Type: | Article |
| Título de Revista/Publicación: | Computers and structures |
| Date: | 2012 |
| ISSN: | 0045-7949 |
| Volume: | 96-97 |
| Subjects: | |
| Freetext Keywords: | Porous elements; Displacement formulation; Spurious modes; Porous beam; Porous tetrahedron |
| Faculty: | E.T.S.I. Industriales (UPM) |
| Department: | Ingeniería Mecánica y de Fabricación [hasta 2014] |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
From the elastic energy contained in a displacement based porous material the general form of the stiffness and mass matrices are obtained. If both fields can be expanded with equal order polynomials the general form is further simplified and it is shown that the coupling stiffness reduces to the one arising to compute volume changes in an elastic medium. A plane beam and a four node tetrahedron are developed. To avoid spurious rotational modes appearance in the tetrahedron fluid a penalty formulation is used. The effect of the penalty factor in matrix conditioning is analysed. Elements dynamic behaviour is compared.
More information
| Item ID: | 10467 |
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| DC Identifier: | https://oa.upm.es/10467/ |
| OAI Identifier: | oai:oa.upm.es:10467 |
| DOI: | 10.1016/j.compstruc.2012.01.00 |
| Official URL: | http://www.sciencedirect.com/science/article/pii/S... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 07 Mar 2012 08:58 |
| Last Modified: | 20 Apr 2016 18:40 |
