000022414 001__ 22414
000022414 005__ 20170622150012.0
000022414 04107 $$aeng
000022414 046__ $$k2015-05-25
000022414 100__ $$aIdesman, Alexander
000022414 24500 $$aACCURATE SOLUTIONS OF WAVE PROPAGATION PROBLEMS UNDER IMPACT LOADING BY THE STANDARD, SPECTRAL AND ISOGEOMETRIC HIGH-ORDER FINITE ELEMENTS. COMPARISON AND PREDICTION OF ACCURACY OF DIFFERENT SPACE-DISCRETIZATION TECHNIQUES.

000022414 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022414 260__ $$bNational Technical University of Athens, 2015
000022414 506__ $$arestricted
000022414 520__ $$2eng$$aFor the first time, accurate numerical solutions to impact problems have been obtained with the standard, spectral, and isogeometric high-order finite elements. Spurious high-frequency oscillations appearing in numerical results are quantified and filtered out by the two-stage time-integration approach. We also use the 1-D impact problem with a simple analytical solution for the comparison of accuracy of the different spacediscretization techniques used for transient acoustics and elastodynamics problems. The numerical results show the computational efficiency of the linear finite elements with reduced dispersion compared with other linear and high-order space-discretization techniques used for elastodynamics with implicit and explicit time-integration methods.

000022414 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022414 653__ $$a

000022414 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022414 720__ $$aIdesman, Alexander
000022414 8560_ $$ffischerc@itam.cas.cz
000022414 8564_ $$s9963$$uhttps://invenio.itam.cas.cz/record/22414/files/C761_abstract.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022414 962__ $$r22030
000022414 980__ $$aPAPER