Modelling of size and shape of damage zone in quasi-brittle notched specimens – analytical approach based on fracture-mechanical evaluation of loading curves

Simple item page
dc.contributor.authorKlon, Jiřícs
dc.contributor.authorVeselý, Václavcs
dc.coverage.issue39cs
dc.coverage.volume11cs
dc.date.accessioned2020-08-04T11:02:06Z
dc.date.available2020-08-04T11:02:06Z
dc.date.issued2017-01-01cs
dc.description.abstractAn analysis focused on capturing the phenomenon of quasibrittle fracture is presented. Selected parameters relevant for quasi-brittle fracture are evaluated and an assessment of their dependence on the size and shape of the test specimen is studied. Determination of these fracture characteristics is based on the records of the fracture tests on notched specimens, particularly from recorded loading diagrams. A method of separation of the energy amounts released for the propagation of the (effective) crack and that dissipated within the volume of a large nonlinear zone at the crack tip – the fracture process zone – is introduced and tested on selected data from experimental campaigns published in the literature. The work is accompanied with own conducted numerical simulations using commercial finite element code with implemented cohesive crack model. Results from three-point bending tests on specimens of different sizes and relative notch lengths are taken into account in this study. The proposed model has only two parameters whose values are constant for all specimen sizes and notch lengths.en
dc.formattextcs
dc.format.extent17-28cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationFrattura ed Integrita Strutturale. 2017, vol. 11, issue 39, p. 17-28.en
dc.identifier.doi10.3221/IGF-ESIS.39.03cs
dc.identifier.issn1971-8993cs
dc.identifier.other131362cs
dc.identifier.urihttp://hdl.handle.net/11012/180646
dc.language.isoencs
dc.publisherGruppo Italiano Fratturacs
dc.relation.ispartofFrattura ed Integrita Strutturalecs
dc.relation.urihttp://www.gruppofrattura.it/pdf/rivista/numero39/numero_39_art_3.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1971-8993/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectQuasi-brittle Fractureen
dc.subjectLoading Curveen
dc.subjectWork of Fractureen
dc.subjectResistance Curveen
dc.subjectEffective Cracken
dc.subjectFracture Process Zoneen
dc.titleModelling of size and shape of damage zone in quasi-brittle notched specimens – analytical approach based on fracture-mechanical evaluation of loading curvesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-131362en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:02:06en
sync.item.modts2020.08.04 12:21:38en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavební mechanikycs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
650111020161215.pdf
Size:
3.12 MB
Format:
Adobe Portable Document Format
Description:
650111020161215.pdf
Download
Collections
Ústav stavební mechaniky