Detail publikačního výsledku

Simple Calculation of Geometrical Shielding at Intergranular Crack Front by Means of Pyramidal Model

ŠANDERA, P., HORNÍKOVÁ, J., POKLUDA, J.

Originální název

Simple Calculation of Geometrical Shielding at Intergranular Crack Front by Means of Pyramidal Model

Anglický název

Simple Calculation of Geometrical Shielding at Intergranular Crack Front by Means of Pyramidal Model

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper presents a simple pyramidal model of a real intergranular crack front enabling the analytical calculation of the effective stress intensity factor. This analytical approach yields values well comparable with the data obtained by a boundary element numerical procedure applied to real-like intergranular crack fronts. It enables to separate the geometrical shielding level from the measured fracture toughness values in order to obtain the real averaged grain boundary fracture energy. In this way, some apparently paradox phenomena can be quantitatively elucidated, e.g. the increase in fracture toughness with increasing solution annealing temperature in ultra-high strength low alloy steels.

Anglický abstrakt

The paper presents a simple pyramidal model of a real intergranular crack front enabling the analytical calculation of the effective stress intensity factor. This analytical approach yields values well comparable with the data obtained by a boundary element numerical procedure applied to real-like intergranular crack fronts. It enables to separate the geometrical shielding level from the measured fracture toughness values in order to obtain the real averaged grain boundary fracture energy. In this way, some apparently paradox phenomena can be quantitatively elucidated, e.g. the increase in fracture toughness with increasing solution annealing temperature in ultra-high strength low alloy steels.

Klíčová slova

pyramidal model, intergranular crack front, stress intensity factor, BEM, shielding level, fracture toughness, UHSLA steel.

Klíčová slova v angličtině

pyramidal model, intergranular crack front, stress intensity factor, BEM, shielding level, fracture toughness, UHSLA steel.

Autoři

ŠANDERA, P., HORNÍKOVÁ, J., POKLUDA, J.

Vydáno

01.01.2002

Nakladatel

EMAS

Místo

Krakow

ISBN

-88906-04-6

Kniha

Fracture Mechanics Beyond 2000, ECF 14

Strany od

383

Strany počet

8

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@inproceedings{BUT10293,
  author="Pavel {Šandera} and Jana {Horníková} and Jaroslav {Pokluda}",
  title="Simple Calculation of Geometrical Shielding at Intergranular Crack Front by Means of Pyramidal Model",
  booktitle="Fracture Mechanics Beyond 2000, ECF 14",
  year="2002",
  number="1",
  pages="8",
  publisher="EMAS",
  address="Krakow",
  isbn="-88906-04-6"
}