Detail publikace

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

VESELÝ, V. ŘOUTIL, L. KERŠNER, Z.

Originální název

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

Anglický název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

čeština

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

VESELÝ, V.; ŘOUTIL, L.; KERŠNER, Z.

Rok RIV

2007

Vydáno

25. 10. 2007

Místo

Brno, Česká republika

ISBN

978-80-7204-543-3

Kniha

Experiment 2007

Strany od

517

Strany do

522

Strany počet

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"
}