title: Acoustic displacement triangle based on the individual element test
creator: Correa, S.
creator: Militello, C.
creator: Recuero López, Manuel
subject: Industrial Engineering
subject: Physics
description: 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.
publisher: E.T.S.I. Industriales (UPM)
rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/
date: 2012
type: info:eu-repo/semantics/article
type: Article
source: Latin American Journal of Solids and Structures, ISSN 1679-7825, 2012, Vol. 9, No. 2
type: PeerReviewed
format: application/pdf
language: eng
relation: http://www.lajss.org/index.php/LAJSS/article/viewArticle/358
rights: info:eu-repo/semantics/openAccess
identifier: https://oa.upm.es/14167/