Publication detail
Multiscale Correlation Effects during Fatigue Damage Evolution Observed by Surface Roughness Analysis.
GORDIENKO, Y. ZASIMCHUK, E. POKLUDA, J.
English title
Multiscale Correlation Effects during Fatigue Damage Evolution Observed by Surface Roughness Analysis.
Type
conference paper
Language
en
Original abstract
Periodic and random surface roughness of cyclically loaded specimens of ferritic and austenitic steels was measured using new optical method based on laser light scattering on rough surfaces. Measured dependencies of autocorrelation length of surface T on relative number of cycles N/Nf indicate an onset of a stable extrusion/intrusion relief on the specimen surface caused by fatigue process. In addition to this, the qualitative and quantitative investigations of surface relief formation and evolution on Al single crystal thick films rigidly attached to specimens under cyclic tension were carried out by optical microscopy with the CCD camera in online regime, local investigation by X-ray method and analysis of interference fringes.
English abstract
Periodic and random surface roughness of cyclically loaded specimens of ferritic and austenitic steels was measured using new optical method based on laser light scattering on rough surfaces. Measured dependencies of autocorrelation length of surface T on relative number of cycles N/Nf indicate an onset of a stable extrusion/intrusion relief on the specimen surface caused by fatigue process. In addition to this, the qualitative and quantitative investigations of surface relief formation and evolution on Al single crystal thick films rigidly attached to specimens under cyclic tension were carried out by optical microscopy with the CCD camera in online regime, local investigation by X-ray method and analysis of interference fringes.
Keywords in English
Surface roughness analysis, fatigue damage evolution, fractal dimension, autocorrelation function, fatigue life, laser beam scattering.
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
8
BIBTEX
@inproceedings{BUT3652,
author="Yurij {Gordienko} and Elena {Zasimchuk} and Jaroslav {Pokluda},
title="Multiscale Correlation Effects during Fatigue Damage Evolution Observed by Surface Roughness Analysis.",
booktitle="Materials Structure & Micromechanics of Fracture (MSMF-3)",
year="2001",
month="June",
publisher="Vutium",
address="Brno",
isbn="80-214-1892-3"
}