Publication result detail

Fracture process zone size and energy dissipated during crack propagation in quasi-brittle materials

ŘOUTIL, L.; VESELÝ, V.; KERŠNER, Z.; SEITL, S.; KNÉSL, Z.

Original Title

Fracture process zone size and energy dissipated during crack propagation in quasi-brittle materials

English Title

Fracture process zone size and energy dissipated during crack propagation in quasi-brittle materials

Type

Paper in proceedings (conference paper)

Original Abstract

The paper presents a numerical analysis of fracture processes in testing specimen configurations with substantially different crack tip stress constraint levels. Specimens of several sizes and relative notch lengths are taken into account. The features of the distribution of current/cumulative value of fracture energy along the specimen ligament are discussed and related to estimations of fracture process zone (FPZ) size and shape, in which the energy is dissipated. Significant effect of the stress constraint on the size/shape of the FPZ, and consequently the energy dissipated within it, is reported.

English abstract

The paper presents a numerical analysis of fracture processes in testing specimen configurations with substantially different crack tip stress constraint levels. Specimens of several sizes and relative notch lengths are taken into account. The features of the distribution of current/cumulative value of fracture energy along the specimen ligament are discussed and related to estimations of fracture process zone (FPZ) size and shape, in which the energy is dissipated. Significant effect of the stress constraint on the size/shape of the FPZ, and consequently the energy dissipated within it, is reported.

Keywords

cementitious composites, fracture energy, fracture process zone, numerical modelling

Key words in English

cementitious composites, fracture energy, fracture process zone, numerical modelling

Authors

ŘOUTIL, L.; VESELÝ, V.; KERŠNER, Z.; SEITL, S.; KNÉSL, Z.

RIV year

2010

Released

02.09.2008

Publisher

VUTIUM Brno

Location

Brno

ISBN

9781617823190

Book

Proceedings of 17th European Conference on Fracture

Pages from

619

Pages to

626

Pages count

8

BibTex

@inproceedings{BUT29689,
  author="Ladislav {Řoutil} and Václav {Veselý} and Zbyněk {Keršner} and Stanislav {Seitl} and Zdeněk {Knésl}",
  title="Fracture process zone size and energy dissipated during crack propagation in quasi-brittle materials",
  booktitle="Proceedings of 17th European Conference on Fracture",
  year="2008",
  pages="619--626",
  publisher="VUTIUM Brno",
  address="Brno",
  isbn="9781617823190"
}