dc.contributor.authors |
Cecen, Ferhat; Aktas, Bekir; Ozturk, Hakan; Ozturk, Irfan S.; Navdar, M. Burhan |
|
dc.date.accessioned |
2022-12-20T13:25:05Z |
|
dc.date.available |
2022-12-20T13:25:05Z |
|
dc.date.issued |
2022 |
|
dc.identifier.issn |
0950-0618 |
|
dc.identifier.uri |
http://dx.doi.org/10.1016/j.conbuildmat.2022.127563 |
|
dc.identifier.uri |
https://hdl.handle.net/20.500.12619/99184 |
|
dc.description |
Bu yayının lisans anlaşması koşulları tam metin açık erişimine izin vermemektedir. |
|
dc.description.abstract |
Due to today's high-frequency trainloads and wheel or rail irregularities, the railway system is more exposed to impact loading conditions. In this study, laminated carbon fiber reinforced polyurethane (L-CFRPU) products were used, with a new non-pre-stressed production process, to improve the impact damping characteristics of concrete railway sleepers. New designed LCR-6 type sleepers were compared with standard B70 type pre-stressed concrete sleepers by performing modal analysis before and after a 50 times repeated-330 kN impact loading procedure. This is the first study to compare new LCR-6 type sleepers with prestressed competitors after impact loads. According to the analysis results, FRF magnitude values decrease up to 83% lower in impacted LCR-6 type sleepers compared to impacted B70 type sleepers. After the impact loading procedure, the cracks formed in LCR6 type sleepers closed and remained below 50-mu m width, and according to the simultaneous mechanical test results, these few hairline cracks do not cause a significant mechanical capacity loss, while increasing the damping ratios by 274%. This advantage will be beneficial in extending the service life of sleepers and protecting other railway components from vibration and impact damage. Therefore, while the pre-stressed concrete sleepers have a negative course during their service life, the non-pre-stressed LCR type sleepers show a positive acceleration. |
|
dc.language |
English |
|
dc.language.iso |
eng |
|
dc.relation.isversionof |
10.1016/j.conbuildmat.2022.127563 |
|
dc.subject |
Construction & Building Technology |
|
dc.subject |
Engineering |
|
dc.subject |
Materials Science |
|
dc.subject |
Railway sleeper |
|
dc.subject |
Pre-stressed concrete |
|
dc.subject |
Carbon fiber reinforced polymer |
|
dc.subject |
Eigen frequency |
|
dc.subject |
Damping ratio |
|
dc.title |
Comparative modal analysis of B70 and LCR-6 type railway sleepers after repeated impact loads |
|
dc.contributor.authorID |
Ozturk, I. Sehrullah/0000-0002-2775-5433 |
|
dc.contributor.authorID |
Ozturk, Hakan/0000-0003-2819-273X |
|
dc.identifier.volume |
336 |
|
dc.relation.journal |
CONSTRUCTION AND BUILDING MATERIALS |
|
dc.identifier.doi |
10.1016/j.conbuildmat.2022.127563 |
|
dc.identifier.eissn |
1879-0526 |
|
dc.contributor.author |
Cecen, Ferhat |
|
dc.contributor.author |
Aktas, Bekir |
|
dc.contributor.author |
Ozturk, Hakan |
|
dc.contributor.author |
Ozturk, Irfan S. |
|
dc.contributor.author |
Navdar, M. Burhan |
|
dc.relation.publicationcategory |
Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı |
|