Detail publikačního výsledku

Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling

VESELÝ, V.; ŘOUTIL, L.; SEITL, S.

Originální název

Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling

Anglický název

Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The geometric proportions of cube-shaped specimens subjected to wedge-splitting tests are numerically studied in the paper. The minimal notch length for specimens made of cement based composites varying in characteristic length of the material (a measure of material brittleness/heterogeneity) is verified using finite element method code with an implemented cohesive crack model (ATENA). The problem of assigning the crack initiation point (the notch tip vs. the groove corner in the load-imposing area of the specimen) is solved numerically also using both the theory of linear elastic fracture mechanics and the theory of the fracture mechanics of generalized singular stress concentrators in the second part of the two-part paper. Results obtained by the different approaches are compared. The minimal notch length is recommended.

Anglický abstrakt

The geometric proportions of cube-shaped specimens subjected to wedge-splitting tests are numerically studied in the paper. The minimal notch length for specimens made of cement based composites varying in characteristic length of the material (a measure of material brittleness/heterogeneity) is verified using finite element method code with an implemented cohesive crack model (ATENA). The problem of assigning the crack initiation point (the notch tip vs. the groove corner in the load-imposing area of the specimen) is solved numerically also using both the theory of linear elastic fracture mechanics and the theory of the fracture mechanics of generalized singular stress concentrators in the second part of the two-part paper. Results obtained by the different approaches are compared. The minimal notch length is recommended.

Klíčová slova

wedge-splitting test, cementitious composites, quasi-brittle fracture, brittleness, characteristic length, notch length.

Klíčová slova v angličtině

wedge-splitting test, cementitious composites, quasi-brittle fracture, brittleness, characteristic length, notch length.

Autoři

VESELÝ, V.; ŘOUTIL, L.; SEITL, S.

Rok RIV

2012

Vydáno

15.10.2010

Místo

Švýcarsko

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

10

Číslo

4

Stát

Švýcarská konfederace

Strany od

77

Strany do

80

Strany počet

4

BibTex

@article{BUT50171,
  author="Václav {Veselý} and Ladislav {Řoutil} and Stanislav {Seitl}",
  title="Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling",
  journal="Key Engineering Materials (print)",
  year="2010",
  volume="10",
  number="4",
  pages="77--80",
  issn="1013-9826"
}