Publication result detail

The influence of the shape of a saw-cut notch in quasi-brittle 3PB specimens on the critical applied force

SEITL, S.; ŘOUTIL, L.; KLUSÁK, J.; VESELÝ, V.

Original Title

The influence of the shape of a saw-cut notch in quasi-brittle 3PB specimens on the critical applied force

English Title

The influence of the shape of a saw-cut notch in quasi-brittle 3PB specimens on the critical applied force

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Values of fracture parameters of quasi-brittle building materials are usually determined from results of tests per-formed on notched testing specimens. The contribution deals with the influence of various shapes of tips of notches prepared by a diamond saw in three point bending (3PB) specimens. The influence of the notch tip shape on the applied force corresponding to a failure initiation at the notch tip and also on the critical applied force ap-propriate to the maximal load-bearing capacity of the specimen is studied. Calculations are performed in two fi-nite element method (FEM) systems (ATENA, ANSYS) based on two different approaches to fracture descrip-tion (Cohesive crack models and LEFM, respectively). The numerical results obtained by both FEM systems are compared. The influence of notch shapes and width is quantified.

English abstract

Values of fracture parameters of quasi-brittle building materials are usually determined from results of tests per-formed on notched testing specimens. The contribution deals with the influence of various shapes of tips of notches prepared by a diamond saw in three point bending (3PB) specimens. The influence of the notch tip shape on the applied force corresponding to a failure initiation at the notch tip and also on the critical applied force ap-propriate to the maximal load-bearing capacity of the specimen is studied. Calculations are performed in two fi-nite element method (FEM) systems (ATENA, ANSYS) based on two different approaches to fracture descrip-tion (Cohesive crack models and LEFM, respectively). The numerical results obtained by both FEM systems are compared. The influence of notch shapes and width is quantified.

Keywords

three point bending specimens, cement-based composites, fracture parameters, notch geometry, notch width

Key words in English

three point bending specimens, cement-based composites, fracture parameters, notch geometry, notch width

Authors

SEITL, S.; ŘOUTIL, L.; KLUSÁK, J.; VESELÝ, V.

RIV year

2010

Released

01.06.2008

Publisher

University of West Bohemia

Location

Plzeň

ISBN

1802-680X

Periodical

Applied andComputational Mechanics

Volume

2

Number

1

State

Czech Republic

Pages from

123

Pages to

132

Pages count

10

BibTex

@article{BUT47372,
  author="Stanislav {Seitl} and Ladislav {Řoutil} and Jan {Klusák} and Václav {Veselý}",
  title="The influence of the shape of a saw-cut notch in quasi-brittle 3PB specimens on the critical applied force",
  journal="Applied andComputational Mechanics",
  year="2008",
  volume="2",
  number="1",
  pages="123--132",
  issn="1802-680X"
}