eprintid: 10467
rev_number: 26
eprint_status: archive
userid: 1903
dir: disk0/00/01/04/67
datestamp: 2012-03-07 08:58:29
lastmod: 2016-04-20 18:40:28
status_changed: 2012-11-07 13:33:19
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Guadalupe Suarez, Viana Lida
creators_name: Militello, C.
creators_name: Recuero López, Manuel
title: Acoustoelastic Pure-Displacement Elements Based on Biot's Poromechanics Theory
ispublished: pub
subjects: industrial
subjects: matematicas
keywords: Porous elements; Displacement formulation; Spurious modes; Porous beam; Porous tetrahedron
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.
date: 2012
date_type: published
publisher: Elsevier B.V.
official_url: http://www.sciencedirect.com/science/article/pii/S0045794912000065
id_number: 10.1016/j.compstruc.2012.01.00
full_text_status: public
publication: Computers and structures
volume: 96-97
pagerange: 54-60
institution: Industriales
department: Ingenieria_Mecanica
refereed: TRUE
issn: 0045-7949
rights: by-nc-nd
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 <https://doi.org/10.1016/j.compstruc.2012.01.00>. 
document_url: https://oa.upm.es/10467/2/INVE_MEM_2012_94797.pdf