About: Numerical Aspects of the Crack Band Approach

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The crack band approach has been used in many engineering computations as a simple technique eliminating or reducing the sensitivity of numerical results to the size of finite elements in simulations that involve strain localization due to softening. In the present paper, this traditional technique is carefully analyzed and potential sources of errors are identified. The role of various components of the modeling strategy is elucidated by simple examples dealing with a one-dimensional tensile test and a two-dimensional model of a notched beam subjected to bending. The influence of the specific choice of finite elements, integration scheme and formula for estimation of the crack band width is analyzed. Particular attention is devoted to the differences among band width estimation methods based on element area or volume, on element projection, and on the idea proposed by Oliver (1989). The results are summarized in the form of recommendations which can contribute to reduction of errors in practical simulations. The crack band approach has been used in many engineering computations as a simple technique eliminating or reducing the sensitivity of numerical results to the size of finite elements in simulations that involve strain localization due to softening. In the present paper, this traditional technique is carefully analyzed and potential sources of errors are identified. The role of various components of the modeling strategy is elucidated by simple examples dealing with a one-dimensional tensile test and a two-dimensional model of a notched beam subjected to bending. The influence of the specific choice of finite elements, integration scheme and formula for estimation of the crack band width is analyzed. Particular attention is devoted to the differences among band width estimation methods based on element area or volume, on element projection, and on the idea proposed by Oliver (1989). The results are summarized in the form of recommendations which can contribute to reduction of errors in practical simulations. (en)
Title	Numerical Aspects of the Crack Band Approach Numerical Aspects of the Crack Band Approach (en)
skos:prefLabel	Numerical Aspects of the Crack Band Approach Numerical Aspects of the Crack Band Approach (en)
skos:notation	RIV/68407700:21110/12:00200366!RIV13-GA0-21110___
http://linked.open...avai/predkladatel	Fakulta stavební
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP108/11/1243)
http://linked.open...iv/cisloPeriodika	November
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Jirásek, Milan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	154991
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/12:00200366
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	softening; cracking; damage; localization; dissipation; fracture energy; crack band (en)
http://linked.open.../riv/klicoveSlovo	cracking damage softening crack band dissipation localization fracture energy
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[935306043D66]
http://linked.open...i/riv/nazevZdroje	Computers and Structures
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Large-Strain Anisotropic Model for Failure of Trabecular Bone
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	110-111
http://linked.open...iv/tvurceVysledku	Jirásek, Milan Bauer, M.
http://linked.open...ain/vavai/riv/wos	000310114500005
issn	0045-7949
number of pages	19 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.compstruc.2012.06.006
http://localhost/t...ganizacniJednotka	21110
is http://linked.open...avai/riv/vysledek of	Numerical Aspects of the Crack Band Approach

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