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Cohesive particle model using discrete element method on the Yade platform



dc.contributor.advisorJirásek Milan
dc.contributor.authorŠmilauer Václav
dc.date.accessioned2018-11-29T10:27:19Z
dc.date.available2018-11-29T10:27:19Z
dc.date.issued2010-06-19
dc.identifierKOS-43072056805
dc.identifier.urihttp://hdl.handle.net/10467/79056
dc.description.abstractThe thesis describes implementation of particle-based model of concrete using the Discrete Element Method (DEM) using the Yade platform. DEM discretizes given domain using packing of (spherical) particles of which motion is governed via local contact laws and Newton's equations. Continuity is modeled via pre-established cohesive contacts between particles, while discontinuous behavior arises naturally from their failure. Concrete is modeled as a homogeneous material, where particles are purely discretization units (not representing of granula, mortar or porosity); the local contact law features damage, plasticity and viscosity and calibration procedures are described in detail.This model was implemented on the Yade platform, substantially enhanced in the course of our work and described for the first time in all its aspects here. As platform for explicit dynamic simulations, in particular the DEM, it is designed as highly modular toolkit of reusable algorithms. The computational part is written in c++ for efficiency and supports shared-memory parallel computation. Python, popular scripting language, is used for rapid and concise simulation setup, control and post-processing; Python also provides full access to most internal data. Good practices (documentation in particular) leading to sustainable development are encouraged by the framework.cze
dc.description.abstractThe thesis describes implementation of particle-based model of concrete using the Discrete Element Method (DEM) using the Yade platform. DEM discretizes given domain using packing of (spherical) particles of which motion is governed via local contact laws and Newton's equations. Continuity is modeled via pre-established cohesive contacts between particles, while discontinuous behavior arises naturally from their failure. Concrete is modeled as a homogeneous material, where particles are purely discretization units (not representing of granula, mortar or porosity); the local contact law features damage, plasticity and viscosity and calibration procedures are described in detail.This model was implemented on the Yade platform, substantially enhanced in the course of our work and described for the first time in all its aspects here. As platform for explicit dynamic simulations, in particular the DEM, it is designed as highly modular toolkit of reusable algorithms. The computational part is written in c++ for efficiency and supports shared-memory parallel computation. Python, popular scripting language, is used for rapid and concise simulation setup, control and post-processing; Python also provides full access to most internal data. Good practices (documentation in particular) leading to sustainable development are encouraged by the framework.eng
dc.language.isoENG
dc.publisherČeské vysoké učení technické v Praze. Vypočetní a informační centrum.cze
dc.publisherCzech Technical University in Prague. Computing and Information Centre.eng
dc.rightsA university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.htmleng
dc.rightsVysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.htmlcze
dc.subjectconcrete,discrete element method,dynamic,numerical programmingcze
dc.subjectconcrete,discrete element method,dynamic,numerical programmingeng
dc.titleCohesive particle model using discrete element method on the Yade platformcze
dc.titleCohesive particle model using discrete element method on the Yade platformeng
dc.typedisertační prácecze
dc.typedoctoral thesiseng
dc.date.accepted2010-06-24
dc.contributor.refereeVítek Jan
theses.degree.disciplineFyzikální a materiálové inženýrstvícze
theses.degree.grantorkatedra mechanikycze
theses.degree.programmeStavební inženýrstvícze


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