Detail publikačního výsledku

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

SOBEK, J.; VESELÝ, V.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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

Anglický abstrakt

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

Klíčová slova

pole napětí, deformace v okolí kořene trhliny v tělesech

Klíčová slova v angličtině

determination of near-crack-tip, wedge splitting tes specimens

Autoři

SOBEK, J.; VESELÝ, V.

Rok RIV

2012

Vydáno

01.12.2011

Místo

Brno

ISBN

978-80-87434-04-8

Kniha

Sborník doktorské konference Víceúrovňový design pokrokových materiálů 2011

Strany od

177

Strany do

184

Strany počet

8

BibTex

@inproceedings{BUT88998,
  author="Jakub {Sobek} and Václav {Veselý}",
  title="Určení pole napětí a deformací v okolí kořene trhliny v tělesech pro wedge-splitting test",
  booktitle="Sborník doktorské konference Víceúrovňový design pokrokových materiálů 2011",
  year="2011",
  pages="177--184",
  address="Brno",
  isbn="978-80-87434-04-8"
}