000013780 001__ 13780
000013780 005__ 20161114170255.0
000013780 04107 $$aeng
000013780 046__ $$k2011-05-25
000013780 100__ $$aZhang, Z.
000013780 24500 $$aAn Efficient H-Adaptive Scaled Boundary Element Method for Transient Elastodynamics

000013780 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013780 260__ $$bNational Technical University of Athens, 2011
000013780 506__ $$arestricted
000013780 520__ $$2eng$$aThis study develops a posterior h-hierarchical adaptive scaled boundary finite element method for transient elastodynamic problems using a mesh refinement procedure which subdivides subdomains. In a time step, the fields of displacement, stress, velocity and acceleration are all semi-analytical and the kinetic energy, strain energy and energy errors are all semi-analytically integrated in subdomains. This makes mesh mapping very simple but accurate. Mesh refinement is very simple, flexible and efficient because only a small number of subdomains are subdivided due to the high accuracy of the SBFEM. The results of an example with stress wave propagation were presented. It is shown that the developed method is capable of capturing the propagation of steep stress regions and calculating accurate dynamic responses, but only using a fraction of degrees of freedom required by adaptive finite element methods.

000013780 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013780 653__ $$aScaled boundary finite element method, h-hierarchical adaptivity, subdivision of subdomains, mesh mapping, elastodynamics

000013780 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013780 720__ $$aZhang, Z.$$iYang, Z.$$iLiu, G.$$iHu, Y.
000013780 8560_ $$ffischerc@itam.cas.cz
000013780 8564_ $$s688988$$uhttps://invenio.itam.cas.cz/record/13780/files/664.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 04 Advances in Numerical Methods for Linear and Nonlinear Dynamics.
000013780 962__ $$r13401
000013780 980__ $$aPAPER