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Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings

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Main Authors: S., Abdullah, J. C., Choi
Other Authors: shahrum@eng.ukm.my
Format: Article
Language:English
Published: The Institution of Engineers, Malaysia 2011
Subjects:
Fatigue
Fatigue data editing
The ESD Model
Variable amplitude
WBE
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13749
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spelling my.unimap-137492011-09-14T09:30:39Z Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings S., Abdullah J. C., Choi shahrum@eng.ukm.my Fatigue Fatigue data editing The ESD Model Variable amplitude WBE Link to publisher's homepage at http://www.myiem.org.my/ This paper presents the analysis of cycle sequence effects using variable amplitude (VA) fatigue loadings extracted from a wavelet-based fatigue data editing algorithm, known as Wavelet Bump Extraction (WBE). This algorithm was used to produce a shortened mission signal by extracting fatigue damaging events from the original signal. In relation to the fatigue life prediction, current industrial practice uses the Palmgren-Miner linear damage rule which lacks load interaction accountability in VA loadings. Considering the importance of cycle sequence effects in VA loadings, a suitable fatigue life prediction approach was identified, i.e. the Effective Strain Damage (ESD) model. In this study, the cycle sequence effects were analytically and experimentally analysed using VA fatigue loadings. Uniaxial fatigue tests of the WBE extracted loadings were performed and the results were compared with predicted results using four strain-life models, i.e. Coffin-Manson, Morrow, Smith-Watson- Topper (SWT) and ESD. The smallest and acceptable difference of about 19% between the experiment and prediction was found using the ESD model. Finally, to note that it is important to retain the original cycle sequence in order to properly determine fatigue life under VA loadings. 2011-09-14T09:30:39Z 2011-09-14T09:30:39Z 2006-06 Article The Journal of the Institution of Engineers, Malaysia, vol. 67(2), 2006, pages 47-54 0126-513X http://www.myiem.org.my/content/iem_journal_2006-177.aspx http://hdl.handle.net/123456789/13749 en The Institution of Engineers, Malaysia
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Fatigue
Fatigue data editing
The ESD Model
Variable amplitude
WBE
spellingShingle Fatigue
Fatigue data editing
The ESD Model
Variable amplitude
WBE
S., Abdullah
J. C., Choi
Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
description Link to publisher's homepage at http://www.myiem.org.my/
author2 shahrum@eng.ukm.my
author_facet shahrum@eng.ukm.my
S., Abdullah
J. C., Choi
format Article
author S., Abdullah
J. C., Choi
author_sort S., Abdullah
title Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
title_short Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
title_full Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
title_fullStr Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
title_full_unstemmed Using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
title_sort using a fatigue data editing approach for analysing cycle sequence effects in variable amplitude road loadings
publisher The Institution of Engineers, Malaysia
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13749
_version_ 1643790925120405504
score 13.214268

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