A Finite Element Method for Interactive Physically Based Shape Modelling with Quadratic Tetrahedra

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dc.contributor.author Mezger, Johannes de_DE
dc.contributor.author Thomaszewski, Bernhard de_DE
dc.contributor.author Pabst, Simon de_DE
dc.contributor.author Straßer, Wolfgang de_DE
dc.date.accessioned 2007-07-27 de_DE
dc.date.accessioned 2014-03-18T10:17:34Z
dc.date.available 2007-07-27 de_DE
dc.date.available 2014-03-18T10:17:34Z
dc.date.issued 2007 de_DE
dc.identifier.other 28695978X de_DE
dc.identifier.uri http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-29305 de_DE
dc.identifier.uri http://hdl.handle.net/10900/49060
dc.description.abstract We present an alternative approach to standard geometric shape editing using physically-based simulation. With our technique, the user can deform complex objects in real-time. The enabling technology of this approach is a fast and accurate finite element implementation of an elasto-plastic material model, specifically designed for interactive shape manipulation. Using quadratic shape functions, we avoid the inherent drawback of volume locking exhibited by methods based on linear finite elements. The physical simulation uses a tetrahedral mesh, which is constructed from a coarser approximation of the detailed surface. Having computed a deformed state of the tetrahedral mesh, the deformation is transferred back to the high detail surface. This can be accomplished in an accurate and efficient way using the quadratic shape functions. In order to guarantee stability and real-time frame rates during the simulation, we cast the elasto-plastic problem into a linear formulation. For this purpose, we present a corotational formulation for quadratic finite elements. We demonstrate the versatility of our approach in interactive manipulation sessions and show that our animation system can be coupled with further physics-based animations like, e.g. fluids and cloth, in a bi-directional way. en
dc.language.iso en de_DE
dc.publisher Universität Tübingen de_DE
dc.rights ubt-podok de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_mit_pod.php?la=de de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_mit_pod.php?la=en en
dc.subject.ddc 500 de_DE
dc.subject.other Dreidimensionale geometrische Modellierung , Elastoplastische Deformation , Finite-Elemente-Methode de_DE
dc.subject.other Mesh deformation , Quadratic finite elements , Plasticity en
dc.title A Finite Element Method for Interactive Physically Based Shape Modelling with Quadratic Tetrahedra en
dc.type ResearchPaper de_DE
dc.date.updated 2012-10-11 de_DE
utue.publikation.fachbereich Informatik de_DE
utue.publikation.fakultaet 7 Mathematisch-Naturwissenschaftliche Fakultät de_DE
dcterms.DCMIType Text de_DE
utue.publikation.typ workingPaper de_DE
utue.opus.id 2930 de_DE
utue.opus.portal wsi de_DE
utue.opus.portalzaehlung 2007.01000 de_DE
utue.publikation.source WSI ; 2007 ; 1 de_DE
utue.publikation.reihenname WSI-Reports - Schriftenreihe des Wilhelm-Schickard-Instituts für Informatik de_DE
utue.publikation.zsausgabe 2007, 1
utue.publikation.erstkatid 2919855-0

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