Publication detail
Pyramidal Model of Intergranular Crack Front
ŠANDERA, P. POKLUDA, J. HORNÍKOVÁ, J.
Czech title
Pyramidální model interkrystalického čela trhliny
English title
Pyramidal Model of Intergranular Crack Front
Type
conference paper
Language
en
Original abstract
The simple pyramidal-like model is introduced as suitable approximation of the real geometry of intergranular crack fronts in metallic materials. The extrinsic component of the measured fracture toughness KIc can be estimated by means of this model. Standardly measured materials data as the yield stress, the mean grain size and the linear surface roughness are needed for application of this simple approach. Values of the global effective stress intensity factors received in the framework of the pyramidal model agree well with those obtained for complicated real-like intergranular geometries constructed on the bases of 3D Voronoi tessellation.
English abstract
The simple pyramidal-like model is introduced as suitable approximation of the real geometry of intergranular crack fronts in metallic materials. The extrinsic component of the measured fracture toughness KIc can be estimated by means of this model. Standardly measured materials data as the yield stress, the mean grain size and the linear surface roughness are needed for application of this simple approach. Values of the global effective stress intensity factors received in the framework of the pyramidal model agree well with those obtained for complicated real-like intergranular geometries constructed on the bases of 3D Voronoi tessellation.
Keywords in English
Effective stress intensity factor, intergranular crack front, shielding effect, pyramidal model.
RIV year
2001
Released
27.06.2001
Publisher
Vutium
Location
Brno
ISBN
80-214-1892-3
Book
Materials Structure & Micromechanics of Fracture (MSMF-3)
Pages count
5
BIBTEX
@inproceedings{BUT2822,
author="Pavel {Šandera} and Jaroslav {Pokluda} and Jana {Horníková},
title="Pyramidal Model of Intergranular Crack Front",
booktitle="Materials Structure & Micromechanics of Fracture (MSMF-3)",
year="2001",
month="June",
publisher="Vutium",
address="Brno",
isbn="80-214-1892-3"
}