Publication detail

Selecting a suitable specimen shape with low constraint value for determination of fracture parameters of cementitious composites

SEITL, S. KORTE, S. DE CORTE, W. BOEL, V. SOBEK, J. VESELÝ, V.

Original Title

Selecting a suitable specimen shape with low constraint value for determination of fracture parameters of cementitious composites

Type

conference paper

Language

English

Original Abstract

The stress intensity factor and the T-stress describing the near-crack-tip fields for selected specimen shapes of a test geometry based on wedge splitting and three point bending tests with several variants of boundary conditions are computed using finite element software ANSYS. The test configuration in question is expected to be a convenient alternative to classical fracture tests (especially the tensile ones) for investigation of the quasi-brittle fracture of building materials, when low constraint is requested. These specimens are investigated within the framework of two-parameter fracture mechanics; near-crack-tip stress field parameters are determined and compared with those of the wedge splitting test due to their shape similarity. The sensitivity of the values of these parameters to the boundary conditions is also shown. Suitable choice of the shape of the specimens is discussed.

Keywords

Fracture mechanics, boundary conditions, crack tip fields, stress intensity factor, T-stress

Authors

SEITL, S.; KORTE, S.; DE CORTE, W.; BOEL, V.; SOBEK, J.; VESELÝ, V.

RIV year

2014

Released

10. 4. 2014

ISBN

978-3-03785-830-1

Book

12th International Conference on Fracture and Damage Mechanics

ISBN

1662-9795

Periodical

Key Engineering Materials (web)

Year of study

577-588

Number

1

State

Swiss Confederation

Pages from

481

Pages to

484

Pages count

4

BibTex

@inproceedings{BUT102209,
  author="Stanislav {Seitl} and Sara {Korte} and Wouter {de Corte} and Veerle {Boel} and Jakub {Sobek} and Václav {Veselý}",
  title="Selecting a suitable specimen shape with low constraint value for determination of fracture parameters of cementitious composites",
  booktitle="12th International Conference on Fracture and Damage Mechanics",
  year="2014",
  journal="Key Engineering Materials (web)",
  volume="577-588",
  number="1",
  pages="481--484",
  doi="10.4028/www.scientific.net/KEM.577-578.481",
  isbn="978-3-03785-830-1",
  issn="1662-9795"
}