Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel
The current work aims at estimating the stress intensity factor deep inside the bulk from elastic strain data measured by synchrotron X-ray diffraction. Key features affecting the evaluation of the stress intensity factor are the number of terms in the analytical model describing the crack tip fiel...
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Gruppo Italiano Frattura
2017-06-01
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Online Access: | https://www.fracturae.com/index.php/fis/article/view/1883 |
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doaj-cd6eebfe17d74787ba6e60ca7bfe83922021-01-27T17:15:12ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89932017-06-011141Mid-thickness studies of the stress intensity factor in the bulk of bainitic steelP. Lopez-CrespoJ. Vazquez-PeraltaC. SimpsonT. BuslapsP. J. Withers The current work aims at estimating the stress intensity factor deep inside the bulk from elastic strain data measured by synchrotron X-ray diffraction. Key features affecting the evaluation of the stress intensity factor are the number of terms in the analytical model describing the crack tip field, the extension and position of the area of interest of the experimental data, the effect of the experimental data collected within the plastic zone and the number of elastic strain data points used. Here a parametric study of these features is presented in terms of their influence for the stress intensity factor determination. It was found that 3 or 4 terms in Williams’ expansion is often sufficient; the data should be collected from across the full range of angles around the crack tip; and the number of points/number of terms should be greater than 40. https://www.fracturae.com/index.php/fis/article/view/1883Stress intensity factorBainitic steelWilliams’ expansionX-ray diffraction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P. Lopez-Crespo J. Vazquez-Peralta C. Simpson T. Buslaps P. J. Withers |
spellingShingle |
P. Lopez-Crespo J. Vazquez-Peralta C. Simpson T. Buslaps P. J. Withers Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel Frattura ed Integrità Strutturale Stress intensity factor Bainitic steel Williams’ expansion X-ray diffraction |
author_facet |
P. Lopez-Crespo J. Vazquez-Peralta C. Simpson T. Buslaps P. J. Withers |
author_sort |
P. Lopez-Crespo |
title |
Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
title_short |
Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
title_full |
Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
title_fullStr |
Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
title_full_unstemmed |
Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
title_sort |
mid-thickness studies of the stress intensity factor in the bulk of bainitic steel |
publisher |
Gruppo Italiano Frattura |
series |
Frattura ed Integrità Strutturale |
issn |
1971-8993 |
publishDate |
2017-06-01 |
description |
The current work aims at estimating the stress intensity factor deep inside the bulk from elastic strain data measured by synchrotron X-ray diffraction. Key features affecting the evaluation of the stress intensity factor are the number of terms in the analytical model describing the crack tip field, the extension and position of the area of interest of the experimental data, the effect of the experimental data collected within the plastic zone and the number of elastic strain data points used. Here a parametric study of these features is presented in terms of their influence for the stress intensity factor determination. It was found that 3 or 4 terms in Williams’ expansion is often sufficient; the data should be collected from across the full range of angles around the crack tip; and the number of points/number of terms should be greater than 40.
|
topic |
Stress intensity factor Bainitic steel Williams’ expansion X-ray diffraction |
url |
https://www.fracturae.com/index.php/fis/article/view/1883 |
work_keys_str_mv |
AT plopezcrespo midthicknessstudiesofthestressintensityfactorinthebulkofbainiticsteel AT jvazquezperalta midthicknessstudiesofthestressintensityfactorinthebulkofbainiticsteel AT csimpson midthicknessstudiesofthestressintensityfactorinthebulkofbainiticsteel AT tbuslaps midthicknessstudiesofthestressintensityfactorinthebulkofbainiticsteel AT pjwithers midthicknessstudiesofthestressintensityfactorinthebulkofbainiticsteel |
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1724320736095502336 |