Pregled bibliografske jedinice broj: 593564
A B-spline meshless formulation for plate bending analysis
A B-spline meshless formulation for plate bending analysis // ECCOMAS 2012 CD-ROM Proceedings / Eberhardsteiner, Josef ; Boehm, Helmut J. ; Rammerstorfer, Franz G. (ur.).
Beč: Vienna University of Technology, 2012. (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 593564 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
A B-spline meshless formulation for plate bending analysis
Autori
Sorić, Jurica ; Hoster, Josip ; Jarak, Tomislav
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
ECCOMAS 2012 CD-ROM Proceedings
/ Eberhardsteiner, Josef ; Boehm, Helmut J. ; Rammerstorfer, Franz G. - Beč : Vienna University of Technology, 2012
ISBN
978-3-9502481-9-7
Skup
ECCOMAS 2012 : European Congress on Computational Methods in Applied Sciences and Engineering
Mjesto i datum
Beč, Austrija, 10.09.2012. - 14.09.2012
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
plate analysis; meshless approach; B-spline interpolation; locking phenomena.
Sažetak
A meshless local Petrov-Galerkin formulation based on a mixed approach is developed for the analysis of plate structures. Using a three-dimensional solid concept, a plate continuum is discretized by the nodes located on the upper and lower plate surfaces. In contrast to the previous mixed formulations for plate and shell analysis, where the separate strain and displacement interpolations have been performed, here all stress tensor components are interpolated in terms of their nodal values which are then computed by the interpolated displacement components. A new approach using the B-spline functions as the in-plane approximations is proposed, and the results are compared with the solutions obtained by means of the moving least square approximation usually used in meshless formulations. Simple polynomials are applied for the interpolations in the transversal direction. The global discretized equations with only nodal displacement components as unknown variables are derived. The shear locking phenomenon in the thin plate limit is fully suppressed by means of the stress interpolation. The Poisson’s thickness locking effect is eliminated by using the hierarchical quadratic interpolation of the transversal displacement component. The efficiency and accuracy of the proposed formulation are illustrated by numerical examples.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
120-1201910-1812 - Numeričko modeliranje procesa deformiranja bioloških tkiva (Sorić, Jurica, MZOS ) ( CroRIS)
120-1201910-1906 - Modeliranje oštećenja i sigurnost konstrukcija (Tonković, Zdenko, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
