Detail publikace
Jednoduchý výpočet geometrického stínění pro interkrystalcké čelo trhliny užitím pyramidálního modelu
ŠANDERA, P. HORNÍKOVÁ, J. POKLUDA, J.
Český název
Jednoduchý výpočet geometrického stínění pro interkrystalcké čelo trhliny užitím pyramidálního modelu
Anglický název
Simple Calculation of Geometrical Shielding at Intergranular Crack Front by Means of Pyramidal Model
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
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 anglicky
pyramidal model, intergranular crack front, stress intensity factor, BEM, shielding level, fracture toughness, UHSLA steel.
Rok RIV
2002
Vydáno
01.01.2002
Nakladatel
EMAS
Místo
Krakow
ISBN
-88906-04-6
Kniha
Fracture Mechanics Beyond 2000, ECF 14
Číslo edice
1
Počet stran
8
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",
month="January",
publisher="EMAS",
address="Krakow",
isbn="-88906-04-6"
}