Atahan, Ali O.El-Gindy, MoustafaBonin, GuidoAllen, James2024-09-192024-09-1920060791837904978-079183790-01071-6947https://doi.org/10.1115/IMECE2006-13330https://hdl.handle.net/20.500.12483/14097Applied Mechanics Division2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 -- 5 November 2006 through 10 November 2006 -- Chicago, IL -- 69680This paper summarizes results of a large research program intended to develop a draft rear underride guard specification for heavy vehicles. Results of a series of laboratory and full-scale crash tests performed at the Transport Canada Research Center were used in the development of these specifications. A total of eleven full-scale crash tests was carried out to evaluate the effectiveness of different underride guards. The first ten of these tests were performed on a simulated trailer attached guard. Four different underride guard designs were used in these ten full-scale crash tests. Three different vehicle models traveling at 48, 56 and 65 km/h speeds were used to impact underride guards head on. Results of the first ten crash tests show that the currently used US FMVSS 223 standard is far from adequate in preventing the occurrance of rear underride. Based on findings obtained from these crash tests, an improved guard design was developed and tested using a 16-meter trailer. This final crash test verified the effectiveness of improved guard design in reducing the undesirable effects of rear underride crashes. Based on the results, a draft heavy vehicle rear underride guard specification was developed. Copyright © 2006 by ASME.eninfo:eu-repo/semantics/closedAccessCrash testFMVSS 223Heavy vehicleSafetyStandardUnderrideConference Object10.1115/IMECE2006-133302-s2.0-85196520163N/A