Improvement of force history pattern in composite tubular structures by developed trigger mechanisms

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dc.contributor.authorde la Cuesta, J. J.
dc.contributor.authorGhasemnejad, Hessam
dc.date.accessioned2022-06-15T14:55:44Z
dc.date.available2022-06-15T14:55:44Z
dc.date.issued2022-06-14
dc.description.abstractThis paper investigates the effect of various trigger mechanisms on the force history pattern, initial collapse load, mean force and specific energy absorption of CFRP composite tubular absorbers. These trigger mechanisms are bevel with angles of 15°, 30°, 45° and 60° and tulip with angles of 60° and 90° and tip numbers of 4 and 6. Experimental studies were performed for three trigger mechanisms of Bevel (B30° and B60°) and tulip with four tips and angle of 60°, 4T60. It was shown that tulip mechanisms significantly change the force–displacement pattern in comparison with bevel triggers. In this case, the initial collapse load decreases, which leads to improving the crush force efficiency (CFE) and progressive energy absorption. This analysis also contains numerical modelling, which investigates other designs of bevel and tulip trigger mechanisms with different angles. Finally, numerical results are validated against experimental results using advanced finite element techniques in LS-Dyna. The developed tulip trigger mechanisms indicated a significant change of crushing force history, which results in improvement of crashworthiness parameters.en_UK
dc.identifier.citationde la Cuesta JJ, Ghasemnejad H. (2022) Improvement of force history pattern in composite tubular structures by developed trigger mechanisms, Applied Composite Materials, Volume 29, Issue 5, October 2022, pp. 1771–1794en_UK
dc.identifier.eissn1573-4897
dc.identifier.issn0929-189X
dc.identifier.urihttps://doi.org/10.1007/s10443-022-10040-5
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18031
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectTriggeren_UK
dc.subjectCFRPen_UK
dc.subjectTulipen_UK
dc.subjectForce Patternen_UK
dc.subjectAbsorbed Energyen_UK
dc.titleImprovement of force history pattern in composite tubular structures by developed trigger mechanismsen_UK
dc.typeArticleen_UK

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