Discrete element modeling of vibration compaction effect of the vibratory roller in roundtrips on gravels

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dc.contributor.author Wu, Kai
dc.contributor.author Sun, Weichen
dc.contributor.author Liu, Songyu
dc.contributor.author Huang, Haibo
dc.date.accessioned 2020-05-22T08:53:09Z
dc.date.available 2020-05-22T08:53:09Z
dc.date.issued 2020-05-04
dc.identifier.citation Wu, K., Sun, W., Liu, S. and Huang, H. (2020) ‘Discrete element modeling of vibration compaction effect of the vibratory roller in roundtrips on gravels’, Journal of Testing and Evaluation, 49. doi: 10.1520/JTE20190910 en
dc.identifier.volume 49 en
dc.identifier.issn 0090-3973
dc.identifier.uri http://hdl.handle.net/10468/10015
dc.identifier.doi 10.1520/JTE20190910 en
dc.description.abstract This paper aims to study the vibration compaction mechanism of the vibratory roller on gravels using a two-dimensional discrete element method. The roadbed model was established by gravel particles with irregular shapes, which was closer to reality. The performance parameters of the vibratory roller, such as operating frequency and rolling velocity, were investigated to explore their influences on the operating efficiency of the vibratory roller in roundtrips. The frequencies of 15 Hz and 17 Hz were proved to be the optimal frequency and resonance frequency in the current simulations, respectively. The vibratory roller could achieve a better vibration compaction effect with less power consumption at the optimal frequency. In addition, the number of roundtrips and power consumption should be considered in the selection of the optimal rolling velocity. The movement direction and the contact force distribution of gravels were illustrated by the displacement field, velocity field, as well as the contact force chains. Our results provide a better understanding of the mechanical behavior of gravel particles and their interactions with the vibratory roller. en
dc.description.sponsorship National Natural Science Foundation of China (No. 51608112); National Key Research and Development Program of China (No. 2016YFC0800201); Fundamental Research Funds for the Central Universities (No. 2242019k30039) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher ASTM International en
dc.rights © 2020, ASTM International. All rights reserved. en
dc.subject Roller en
dc.subject Discrete element method en
dc.subject Porosity en
dc.subject Optimal frequency en
dc.subject Velocity en
dc.title Discrete element modeling of vibration compaction effect of the vibratory roller in roundtrips on gravels en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Haibo Huang, Geography, University College Cork, Cork, Ireland T: +353-21-490-3000 E: haibo.huang@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2021-05-04
dc.description.version Published Version en
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder National Key Research and Development Program of China en
dc.contributor.funder Fundamental Research Funds for the Central Universities en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Testing and Evaluation en
dc.internal.IRISemailaddress haibo.huang@ucc.ie en
dc.internal.bibliocheck In press. Check vol. / issue / page range. Amend citation accordingly. en
dc.identifier.eissn 1945-7553


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