eprintid: 3456
rev_number: 9
eprint_status: archive
userid: 56
dir: disk0/00/00/34/56
datestamp: 2016-04-19 08:06:52
lastmod: 2016-04-19 08:06:52
status_changed: 2016-04-19 08:06:52
type: article
metadata_visibility: show
creators_name: Jones, R.
creators_name: Chen, F.
creators_name: Pitt, S.
creators_name: Paggi, Marco
creators_name: Carpinteri, Alberto
creators_id: 
creators_id: 
creators_id: 
creators_id: marco.paggi@imtlucca.it
creators_id: 
title: From NASGRO to fractals: Representing crack growth in metals
ispublished: pub
subjects: Q1
subjects: TJ
divisions: CSA
full_text_status: none
keywords: Fatigue crack growth models; Fractality; Fatigue experiments; Profilometric analysis; Roughness
abstract: This paper presents the results of an extensive experimental analysis of the fractal properties of fatigue crack rough surfaces. The analysis of the power-spectral density functions of profilometric traces shows a predominance of the box fractal dimension D = 1.2. This result leads to a particularization of the fatigue crack growth equation based on fractality proposed by the last two authors which is very close to the generalized Frost–Dugdale equation proposed by the first three authors. The two approaches, albeit based
on different initial modelling assumptions, are both very effective in predicting the crack growth rate of short cracks.
date: 2016
date_type: published
publication: International Journal of Fatigue
volume: 82
publisher: Elsevier
pagerange: 540-549
id_number: 10.1016/j.ijfatigue.2015.09.009
refereed: TRUE
issn: 0142-1123
official_url: http://dx.doi.org/10.1016/j.ijfatigue.2015.09.009
funders: MIUR
projects: FIRB Future in Research RBFR107AKG
citation:   Jones, R. and Chen, F. and Pitt, S. and Paggi, Marco and Carpinteri, Alberto  From NASGRO to fractals: Representing crack growth in metals.  International Journal of Fatigue, 82.  pp. 540-549.  ISSN 0142-1123      (2016)