About: Accuracy of approximation of stress field in cracked bodies for failure zone extent estimation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Accurate knowledge of stress/displacement field in a cracked specimen is very important for fracture analysis and for instance in the case of quasi-brittle materials, where the zone of non-linear behavior affecting the overall fracture process is larger than in other (brittle) materials, it can play a key role. In this paper, it is shown that Williams expansion can describe the crack-tip fields reliably, provided that considerably more than one or two terms of the power series are taking into account. Such an approach, referred to as multi-parameter fracture mechanics, is usually not used for a common assessment of crack behavior. The study presented shows that especially in larger distances from the crack tip the higher-order terms are crucial in order to minimize the error corresponding with use of only one or two fracture parameters (the first and second terms of Williams expansion). In other words, considering of the higher-order terms of the Williams expansion is essential if knowledge of accur Accurate knowledge of stress/displacement field in a cracked specimen is very important for fracture analysis and for instance in the case of quasi-brittle materials, where the zone of non-linear behavior affecting the overall fracture process is larger than in other (brittle) materials, it can play a key role. In this paper, it is shown that Williams expansion can describe the crack-tip fields reliably, provided that considerably more than one or two terms of the power series are taking into account. Such an approach, referred to as multi-parameter fracture mechanics, is usually not used for a common assessment of crack behavior. The study presented shows that especially in larger distances from the crack tip the higher-order terms are crucial in order to minimize the error corresponding with use of only one or two fracture parameters (the first and second terms of Williams expansion). In other words, considering of the higher-order terms of the Williams expansion is essential if knowledge of accur (en)
Title	Accuracy of approximation of stress field in cracked bodies for failure zone extent estimation Accuracy of approximation of stress field in cracked bodies for failure zone extent estimation (en)
skos:prefLabel	Accuracy of approximation of stress field in cracked bodies for failure zone extent estimation Accuracy of approximation of stress field in cracked bodies for failure zone extent estimation (en)
skos:notation	RIV/00216305:26110/13:PU105569!RIV14-GA0-26110___
http://linked.open...avai/predkladatel	Fakulta stavební
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP105/11/1551), P(GPP105/12/P417)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Veselý, Václav Frantík, Petr Malíková, Lucie Sobek, Jakub
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	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	59316
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/13:PU105569
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Near-crack-tip fields, Williams power expansion, over-deterministic method, finite elements, failure zone extent (en)
http://linked.open.../riv/klicoveSlovo	Near-crack-tip fields Williams power expansion failure zone extent over-deterministic method finite elements
http://linked.open...ontrolniKodProRIV	[445E16426767]
http://linked.open...v/mistoKonaniAkce	Toledo, Španělsko
http://linked.open...i/riv/mistoVydani	Toledo, Španělsko
http://linked.open...i/riv/nazevZdroje	Fracture Mechanics of Concrete and Concrete Structures
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Energetic and stress state aspects of quasi-brittle fracture – consequences for determination of fracture-mechanical parameters of silicate composites Estimation of higher terms of the Williams expansion and their use for fracture response description in structures made of quasi-brittle composites
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Frantík, Petr Veselý, Václav Malíková, Lucie Sobek, Jakub
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-03-11 (xsd:date)
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Neuveden
https://schema.org/isbn	978-84-941004-0-6
http://localhost/t...ganizacniJednotka	26110

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