dc.contributor.author |
Andhavarapu, EV
|
|
dc.contributor.author |
Loveday, Philip W
|
|
dc.contributor.author |
Long, Craig S
|
|
dc.contributor.author |
Heyns, PS
|
|
dc.date.accessioned |
2011-11-30T07:44:47Z |
|
dc.date.available |
2011-11-30T07:44:47Z |
|
dc.date.issued |
2010-01 |
|
dc.identifier.citation |
Andhavarapu, EV, Loveday, P, Long, CS and Heyns, PS. 2010. Accuracy of semi-analytical finite elements for modelling wave propagation in rails. Seventh South African Conference on Computational and Applied Mechanics (SACAM10), University of Pretoria, 10-13 January 2010 |
en_US |
dc.identifier.uri |
http://hdl.handle.net/10204/5347
|
|
dc.description |
Seventh South African Conference on Computational and Applied Mechanics (SACAM10), University of Pretoria, 10-13 January 2010 |
en_US |
dc.description.abstract |
The semi-analytical finite element method (SAFE) is a popular method for analysing guided wave propagation in elastic waveguides of complex cross-section such as rails. The convergence of these models has previously been studied for linear triangular elements. This paper extends this study to include quadratic triangular elements and other linear and quadratic elements. It is shown that for a given number of degrees of freedom the quadratic elements are more efficient than the linear elements. Based on the results of the convergence studies presented here, the use of quadratic quadrilateral elements is recommended and these may be complemented by quadratic triangular elements if necessary. The use of symmetry and antisymmetry boundary conditions when modelling rails was also investigated. It was found that these models predict all the modes of propagation within the frequencies investigated. The use of this approach is therefore recommended for elastic waveguides with symmetrical crosssection. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
SACAM 2010 |
en_US |
dc.relation.ispartofseries |
W orkflow request;7641 |
|
dc.subject |
Guided waves |
en_US |
dc.subject |
Semi analytical finite element |
en_US |
dc.subject |
SAFE |
en_US |
dc.subject |
Wave propagation |
en_US |
dc.subject |
Rails |
en_US |
dc.subject |
Applied mechanics |
en_US |
dc.subject |
SACAM 2010 |
en_US |
dc.title |
Accuracy of semi-analytical finite elements for modelling wave propagation in rails |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Andhavarapu, E., Loveday, P. W., Long, C. S., & Heyns, P. (2010). Accuracy of semi-analytical finite elements for modelling wave propagation in rails. SACAM 2010. http://hdl.handle.net/10204/5347 |
en_ZA |
dc.identifier.chicagocitation |
Andhavarapu, EV, Philip W Loveday, Craig S Long, and PS Heyns. "Accuracy of semi-analytical finite elements for modelling wave propagation in rails." (2010): http://hdl.handle.net/10204/5347 |
en_ZA |
dc.identifier.vancouvercitation |
Andhavarapu E, Loveday PW, Long CS, Heyns P, Accuracy of semi-analytical finite elements for modelling wave propagation in rails; SACAM 2010; 2010. http://hdl.handle.net/10204/5347 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Andhavarapu, EV
AU - Loveday, Philip W
AU - Long, Craig S
AU - Heyns, PS
AB - The semi-analytical finite element method (SAFE) is a popular method for analysing guided wave propagation in elastic waveguides of complex cross-section such as rails. The convergence of these models has previously been studied for linear triangular elements. This paper extends this study to include quadratic triangular elements and other linear and quadratic elements. It is shown that for a given number of degrees of freedom the quadratic elements are more efficient than the linear elements. Based on the results of the convergence studies presented here, the use of quadratic quadrilateral elements is recommended and these may be complemented by quadratic triangular elements if necessary. The use of symmetry and antisymmetry boundary conditions when modelling rails was also investigated. It was found that these models predict all the modes of propagation within the frequencies investigated. The use of this approach is therefore recommended for elastic waveguides with symmetrical crosssection.
DA - 2010-01
DB - ResearchSpace
DP - CSIR
KW - Guided waves
KW - Semi analytical finite element
KW - SAFE
KW - Wave propagation
KW - Rails
KW - Applied mechanics
KW - SACAM 2010
LK - https://researchspace.csir.co.za
PY - 2010
T1 - Accuracy of semi-analytical finite elements for modelling wave propagation in rails
TI - Accuracy of semi-analytical finite elements for modelling wave propagation in rails
UR - http://hdl.handle.net/10204/5347
ER -
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en_ZA |