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Determination of near-crack-tip stress and displacement fields in wedge splitting test specimens

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F11%3APU96628" target="_blank" >RIV/00216305:26110/11:PU96628 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    čeština

  • Original language name

    Určení pole napětí a deformací v okolí kořene trhliny v tělesech pro wedge-splitting test

  • Original language description

    The work deals with a crack-tip stress field analysis during the wedge-splitting test (WST). The analysis is conducted on a 2D numerical model of the test specimen – an adapted standard cube with the edge length equal to 100 mm – using the ANSYS FE computational system. The influence of different boundary conditions (supports, loading) on the stress field in the specimen is investigated through approximation of the field by Williams power series; coefficients of several starting terms of the power series are studied as functions of the crack length (using three different mesh shapes). The main aim of authors is to identify the importance of the considered terms of the Williams series for the accuracy of the stress field description. Results of the study are expected to be utilized for estimation of the extent of the fracture process zone at the crack tip in quasi-brittle materials

  • Czech name

    Určení pole napětí a deformací v okolí kořene trhliny v tělesech pro wedge-splitting test

  • Czech description

    The work deals with a crack-tip stress field analysis during the wedge-splitting test (WST). The analysis is conducted on a 2D numerical model of the test specimen – an adapted standard cube with the edge length equal to 100 mm – using the ANSYS FE computational system. The influence of different boundary conditions (supports, loading) on the stress field in the specimen is investigated through approximation of the field by Williams power series; coefficients of several starting terms of the power series are studied as functions of the crack length (using three different mesh shapes). The main aim of authors is to identify the importance of the considered terms of the Williams series for the accuracy of the stress field description. Results of the study are expected to be utilized for estimation of the extent of the fracture process zone at the crack tip in quasi-brittle materials

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JM - Structural engineering

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GAP105%2F11%2F1551" target="_blank" >GAP105/11/1551: Energetic and stress state aspects of quasi-brittle fracture ? consequences for determination of fracture-mechanical parameters of silicate composites</a><br>

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2011

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Sborník doktorské konference Víceúrovňový design pokrokových materiálů 2011

  • ISBN

    978-80-87434-04-8

  • ISSN

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    177-184

  • Publisher name

    Neuveden

  • Place of publication

    Brno

  • Event location

    Brno

  • Event date

    Dec 1, 2011

  • Type of event by nationality

    CST - Celostátní akce

  • UT code for WoS article