000016031 001__ 16031
000016031 005__ 20161115135336.0
000016031 04107 $$aeng
000016031 046__ $$k2013-06-12
000016031 100__ $$aKaratarakis, A.
000016031 24500 $$aComputation of the Isogeometricanalysis Stiffness Matrix on Gpu

000016031 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000016031 260__ $$bNational Technical University of Athens, 2013
000016031 506__ $$arestricted
000016031 520__ $$2eng$$aDue to high regularity across mesh elements of isogeometric analysis, this new method achieves higher accuracy per degree of freedom and improved spectrum properties, among others, compared to finite element analysis. However, this inherent feature of isogeometric analysis reduces the sparsity pattern of stiffness matrix and requires more elaborate numerical integration schemes for its computation. For these reasons, the assembly of the stiffness matrix in isogeometric analysis is a computationally demanding task, which needs special attention in order to be affordable in real-world implementations. In this paper we address the computational efficiency of assembling the stiffness matrix using the standard element-wise Gaussian quadrature. A novel approach is proposed for the formulation of the stiffness matrix which exhibits several computational merits, among them its amenability to parallelization and the efficient utilization of the graphic possessing units to drastically accelerate computations.

000016031 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000016031 653__ $$aIsogeometric analysis, Gauss quadrature, NURBS, Stiffness matrix assembly, Parallel computing, GPU acceleration

000016031 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000016031 720__ $$aKaratarakis, A.$$iKarakitsios, P.$$iPapadrakakis, M.
000016031 8560_ $$ffischerc@itam.cas.cz
000016031 8564_ $$s288265$$uhttps://invenio.itam.cas.cz/record/16031/files/2143.pdf$$yOriginal version of the author's contribution as presented on CD, section: SC-MS 17 ISOGEOMETRIC METHODS
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000016031 962__ $$r15525
000016031 980__ $$aPAPER