About: Hypoplastic Model for Clays: Issues Specific to FEM Implementation

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The contribution focuses on problems related to the implementation of the hypoplastic model for clays to the finite element method. Attention is first paid to the choice of integration procedure of the stress-strain relation. Three adaptive Runge-Kutta methods of different orders are compared in terms of the efficiency, accuracy and sensitivity to the prescribed tolerance. Second topic covers the inability of the model to treat a zero stress state. In actual FEM implementation this drawback is usually solved by maintaining the stress in the constitutive model shifted by a certain value when compared to the true stress expressed at integration points. The influence of this stress offset on the accuracy of the predicted settlement is demonstrated on a simple problem of vertically loaded flexible foundation placed on terrain. The contribution focuses on problems related to the implementation of the hypoplastic model for clays to the finite element method. Attention is first paid to the choice of integration procedure of the stress-strain relation. Three adaptive Runge-Kutta methods of different orders are compared in terms of the efficiency, accuracy and sensitivity to the prescribed tolerance. Second topic covers the inability of the model to treat a zero stress state. In actual FEM implementation this drawback is usually solved by maintaining the stress in the constitutive model shifted by a certain value when compared to the true stress expressed at integration points. The influence of this stress offset on the accuracy of the predicted settlement is demonstrated on a simple problem of vertically loaded flexible foundation placed on terrain. (en)
Title	Hypoplastic Model for Clays: Issues Specific to FEM Implementation Hypoplastic Model for Clays: Issues Specific to FEM Implementation (en)
skos:prefLabel	Hypoplastic Model for Clays: Issues Specific to FEM Implementation Hypoplastic Model for Clays: Issues Specific to FEM Implementation (en)
skos:notation	RIV/68407700:21110/13:00208702!RIV14-TA0-21110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TA01030245)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Janda, Tomáš
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	78570
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/13:00208702
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Hypoplasticity; FEM Implementation; Clay; Runge-Kutta method; Constitutive modeling; Critical state (en)
http://linked.open.../riv/klicoveSlovo	Clay Runge-Kutta method Hypoplasticity Constitutive modeling Critical state FEM Implementation
http://linked.open...ontrolniKodProRIV	[10B1BE5C8FC6]
http://linked.open...v/mistoKonaniAkce	Cagliari
http://linked.open...i/riv/mistoVydani	Stirling
http://linked.open...i/riv/nazevZdroje	Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Tools for reliable design and construction of tunnels in urban development with emphasis on safety and lifetime
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Janda, Tomáš
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-09-03 (xsd:date)
issn	1759-3433
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Civil-Comp Press Ltd
https://schema.org/isbn	978-1-905088-57-7
http://localhost/t...ganizacniJednotka	21110

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