Radiographic observation and semi-analytical reconstruction of fracture process zone in silicate composite specimen
- NázevTitle
- Radiographic observation and semi-analytical reconstruction of fracture process zone in silicate composite specimenRadiographic observation and semi-analytical reconstruction of fracture process zone in silicate composite specimen
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- D. Vavřík, I. Jandejsek, T. Fíla, V. Veselý
- Klíčová slovaKeywords
- fracture mechanics, Silicate composite, computed tomography
- Časopis / citaceJournal / citation
- Acta Technica CSAV 58(3), 315-326 (2013) · ISSN 0001-7043
- RokYear
- 2013
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Energetické a napjatostní aspekty kvazikřehkého lomu – důsledky pro určování lomově-mechanických parametrů silikátových kompozitůEnergetic and stress state aspects of quasi-brittle fracture – consequences for determination of fracture-mechanical parameters of silicate composites
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
Tensile failure in quasi-brittle materials is connected with formation and evolution of the Fracture Process Zone (FPZ) at the tip of a propagating crack. Not only the existence of the material damage area but also its descriptive parameters (volume, shape and energy dissipation distribution) have to be identified in order to validate approaches on both numerical modelling of quasi-brittle behaviour and experimental determination of the corresponding fracture properties. Radiographic techniques and Digital Image Correlation method are used in the presented research as very appropriate for experimental analysing of the FPZ evolution during loading of a notched test specimen. The experimental results are accompanied/compared with predictions of the FPZ's size and shape via a special semianalytical technique serving as a part of the method developed for evaluation of the real fracture-mechanical characteristics of quasi-brittle materials from records of loading tests on laboratory-sized specimens. © 2013 Institute of Thermomechanics AS CR, v.v.i.
Tensile failure in quasi-brittle materials is connected with formation and evolution of the Fracture Process Zone (FPZ) at the tip of a propagating crack. Not only the existence of the material damage area but also its descriptive parameters (volume, shape and energy dissipation distribution) have to be identified in order to validate approaches on both numerical modelling of quasi-brittle behaviour and experimental determination of the corresponding fracture properties. Radiographic techniques and Digital Image Correlation method are used in the presented research as very appropriate for experimental analysing of the FPZ evolution during loading of a notched test specimen. The experimental results are accompanied/compared with predictions of the FPZ's size and shape via a special semianalytical technique serving as a part of the method developed for evaluation of the real fracture-mechanical characteristics of quasi-brittle materials from records of loading tests on laboratory-sized specimens. © 2013 Institute of Thermomechanics AS CR, v.v.i.