eprintid: 14167
rev_number: 18
eprint_status: archive
userid: 1903
dir: disk0/00/01/41/67
datestamp: 2012-12-19 08:53:05
lastmod: 2016-04-21 13:41:40
status_changed: 2012-12-19 08:53:05
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Correa, S.
creators_name: Militello, C.
creators_name: Recuero López, Manuel
title: Acoustic displacement triangle based on the individual element test
ispublished: pub
subjects: industrial
subjects: fisica
abstract: A three node, displacement based, acoustic element is developed. In order to avoid spurious rotational modes, a higher order stiffness is introduced. The higher order stiffness is developed from an incompatible strain field which computes element volume changes under nodal rotational displacements fields. The higher order strain satisfies the IET requirements, non affecting convergence. The higher order stiffness is modulated, element by element, with a factor. Thus, the displacement based formulation is capable of placing the spurious rotational modes over the range of physical compressional modes that can be accurately captured by the mesh.
date: 2012
date_type: published
publisher: Argentinean Association of Computational Mechanics, Brazilian Association of Computational Mechanics, Mexican Association of Numerical Methods in Engineering and Applied Sciences
official_url: http://www.lajss.org/index.php/LAJSS/article/viewArticle/358
full_text_status: public
publication: Latin American Journal of Solids and Structures
volume: 9
number: 2
pagerange: 133-144
institution: Industriales
department: Ingenieria_Mecanica
refereed: TRUE
issn: 1679-7825
rights: by-nc-nd
citation:   Correa, S. and Militello, C. and Recuero López, Manuel  (2012).  Acoustic displacement triangle based on the individual element test.   "Latin American Journal of Solids and Structures", v. 9  (n. 2);   pp. 133-144.  ISSN 1679-7825.    
document_url: https://oa.upm.es/14167/1/INVE_MEM_2012_121726.pdf