Design and simulation of an energy absorbing underride guard for heavy vehicle rear-end impacts

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dc.authoridAtahan, Ali/0000-0002-4800-4022
dc.contributor.authorAtahan, AO
dc.date.accessioned2024-09-18T20:11:42Z
dc.date.available2024-09-18T20:11:42Z
dc.date.issued2003
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractRecent passenger car-heavy vehicle rear-end crashes demonstrate the importance of rear underride guard designs for heavy vehicle applications. Currently specified rear underride guards have many shortcomings, such as structural strength and energy dissipation capacity, clearance from ground, and other design aspects. As a result of these inadequacies in underride-guard design, many lives are lost every year when passenger cars slide underneath heavier vehicles. In this study, design modifications to an underride guard that minimally complies with the requirements contained in FMVSS 223/224 are evaluated. A previously performed crash test on the guard using a compact passenger car demonstrated the potential for excessive vehicle underride and passenger compartment intrusion problems. After the full-scale crash test, a detailed finite-element study is performed to investigate the shortcomings of the design. The accuracy of the underride guard model is partially validated using both a quasi-static and a full-scale crash test. After the validation, the guard is modified to improve its structural behaviour and energy-dissipation capacity. Four crash-test simulations are performed on the modified guard model to verify its effectiveness in energy dissipation and preventing intrusion into the passenger compartment. In these simulations, two vehicle speeds of 48 km/h and 56 km/h and two impact positions of 0% and 50% offsets are used to fully verify the acceptability of the modified guard model. Simulation results show that the modified rear underride guard performs much better than the original design. The guard dissipated a significant amount of the impacting vehicle's energy and showed no potential for passenger-compartment intrusion in any simulation. The deceleration of the vehicle was also within acceptable limits. Based on these results, it can be concluded that the improved guard performed well and the implementation of this particular underride guard on heavy vehicles looks promising.en_US
dc.identifier.endpage343en_US
dc.identifier.issn1351-7848
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-0346149986en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage321en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9032
dc.identifier.volume10en_US
dc.identifier.wosWOS:000187253600005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInderscience Enterprises Ltden_US
dc.relation.ispartofHeavy Vehicle Systems-International Journal of Vehicle Designen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcomputer simulationen_US
dc.subjectenergy dissipationen_US
dc.subjectFMVSS 223/224en_US
dc.subjectheavy vehiclesen_US
dc.subjectLS-DYNAen_US
dc.subjectpassenger compartment intrusionen_US
dc.subjectrear-end crashen_US
dc.subjectunderride guarden_US
dc.titleDesign and simulation of an energy absorbing underride guard for heavy vehicle rear-end impactsen_US
dc.typeArticleen_US

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