Publication detail

Odhad hodnoty lomové energie a velikosti lomové procesní zóny v tělesech z cementových kompozitů - numerický experiment

VESELÝ, V. ŘOUTIL, L. KERŠNER, Z.

Original Title

Odhad hodnoty lomové energie a velikosti lomové procesní zóny v tělesech z cementových kompozitů - numerický experiment

English Title

Virtual tests of cement-based composite specimens: estimation of fracture energy value and fracture process zone size

Type

conference paper

Language

Czech

Original Abstract

Presented paper is focused on fracture process zone (FPZ) of quasi-brittle materials and energy dissipated within thiszone (local fracture energy) during fracture process. Fracture energy is used here from the point of view of two non-linear approaches to modelling of quasi-brittle fracture - cohesive crack models and equivalent elastic crack models. The paper deals with the influence of specimen size and relative notch length on the value of local fracture energy and size of FPZ. The rtesearch is conducted by means of numerical simulations of three-point bending tests of notched beams witch three specimen sizes. The simulations of fracture tests are performed by using ATENA finite element method software.

English abstract

Presented paper is focused on fracture process zone (FPZ) of quasi-brittle materials and energy dissipated within thiszone (local fracture energy) during fracture process. Fracture energy is used here from the point of view of two non-linear approaches to modelling of quasi-brittle fracture - cohesive crack models and equivalent elastic crack models. The paper deals with the influence of specimen size and relative notch length on the value of local fracture energy and size of FPZ. The rtesearch is conducted by means of numerical simulations of three-point bending tests of notched beams witch three specimen sizes. The simulations of fracture tests are performed by using ATENA finite element method software.

Keywords

lomová energie, lomová procesní zóna, cementové kompozity, numerická simulace, lomové experimenty

Key words in English

fracture energy, fracture process zone, cementitious composites, numerical simulation, fracture experiments

Authors

VESELÝ, V.; ŘOUTIL, L.; KERŠNER, Z.

RIV year

2007

Released

25. 10. 2007

Location

Brno, Česká republika

ISBN

978-80-7204-543-3

Book

Experiment 2007

Pages from

517

Pages to

522

Pages count

6

BibTex

@inproceedings{BUT23901,
  author="Václav {Veselý} and Ladislav {Řoutil} and Zbyněk {Keršner}",
  title="Odhad hodnoty lomové energie a velikosti lomové procesní zóny v tělesech z cementových kompozitů - numerický experiment",
  booktitle="Experiment 2007",
  year="2007",
  pages="517--522",
  address="Brno, Česká republika",
  isbn="978-80-7204-543-3"
}