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Nonconforming rotated Q1 tetrahedral element with explicit time stepping for elastodynamics
Jönköping University, School of Engineering, JTH, Mechanical Engineering. Jönköping University, School of Engineering, JTH. Research area Product Development - Simulation and Optimization.
2011 (English)Report (Other academic)
Abstract [en]

In this paper we apply a rotated bilinear tetrahedral element recently introduced by Hansbo to elastodynamics in R3. This element performs superior to the constant strain element in bending and, unlike the conforming linear strain tetrahedron, allows for row-sum lumping of the mass matrix. We study the effect of different choices of approximation (pointwise continuity versus edge average continuity) as well as lumping versus consistent mass in the setting of eigenvibrations. We also use the element in combination withthe leapfrog method for time domain computations and make numerical comparisons with the constant strain and linear strain tetrahedra.

Place, publisher, year, edition, pages
2011.
Series
JTH research report, ISSN 1404-0018 ; 2011:4
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-16222OAI: oai:DiVA.org:hj-16222DiVA: diva2:444856
Available from: 2011-09-30 Created: 2011-09-30 Last updated: 2012-02-07Bibliographically approved

Open Access in DiVA

fulltext(1202 kB)373 downloads
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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