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Nonconforming rotat...
Nonconforming rotated Q1 tetrahedral element with explicit time stepping for elastodynamics
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- Hansbo, Peter (författare)
- Jönköping University,JTH, Maskinteknik,JTH. Forskningsmiljö Produktutveckling - Simulering och optimering
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(creator_code:org_t)
- 2012-07-13
- 2012
- Engelska.
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Ingår i: International Journal for Numerical Methods in Engineering. - : John Wiley & Sons. - 0029-5981 .- 1097-0207. ; 91:10, s. 1105-1114
- Relaterad länk:
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http://hj.diva-porta...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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visa färre...
Abstract
Ämnesord
Stäng
- In this paper, we apply a rotated bilinear tetrahedral element 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 (point- wise continuity versus edge average continuity) as well as lumping versus consistent mass in the setting of eigenvibrations. We also use the element in combination with the leapfrog method for time domain com- putations and make numerical comparisons with the constant strain and linear strain tetrahedra.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- finite element method
- nonconforming element
- explicit time stepping
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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