Detail publikace

Influence of notch geometry on fracture behaviour of three-point bend notched specimens from quasi-brittle materials

SEITL, S. KLUSÁK, J. KNÉSL, Z. KERŠNER, Z.

Originální název

Influence of notch geometry on fracture behaviour of three-point bend notched specimens from quasi-brittle materials

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

To assess the reliability of structures their fracture mechanical properties have to be known. In the case of cement-based composite types the basic parameters are ascertained on the basic of test evaluations of the specimens in suitable test configurations. Three-point bending specimens with a central starting notch are the most frequently used specimens for laboratory testing. The influence of the geometry of the starting notch in a three-point bend specimen on the resulting values of fracture toughness is studied in this paper. To this end, a crack initation at the notch tip is numerically simulated. It is shown that the values of fracture toughness obtained for specimens with larger widths of starting notch can be overestimated.

Klíčová slova

fracture toughness, cement-based composites, finite element method, fracture mechanics

Autoři

SEITL, S.; KLUSÁK, J.; KNÉSL, Z.; KERŠNER, Z.

Vydáno

10. 9. 2007

Místo

Cape Town, South Africa

Strany od

245

Strany do

246

Strany počet

2

BibTex

@misc{BUT60636,
  author="Stanislav {Seitl} and Jan {Klusák} and Zdeněk {Knésl} and Zbyněk {Keršner}",
  title="Influence of notch geometry on fracture behaviour of three-point bend notched specimens from quasi-brittle materials",
  year="2007",
  pages="245--246",
  address="Cape Town, South Africa",
  note="abstract"
}