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Crash Worthiness of a Post with Clip-type Slip Base Subject to Side Impact  

Ko, Man-Gi (공주대학교 건설환경공학부)
Kim, Kee-Dong (공주대학교 건설환경공학부)
Kim, Kyoung-Ju (공주대학교 건설환경공학부)
Sung, Jung-Gon (한국건설기술연구원 도로연구실)
Yun, Duk-Geun (한국건설기술연구원 도로연구실)
Publication Information
International Journal of Highway Engineering / v.12, no.4, 2010 , pp. 175-186 More about this Journal
Abstract
When a rigid post is exposed to traffic, it is hazardous not only to head-on impacts but also to side impacts. Clip-type slip base is an effective measure to reduce the severity of head-on impacts and side impacts as well because of its multi-directional release mechanism. Side impact tests were conducted and the results were analysed to demonstrate the hazardousness of a rigid post to a side impact and the crash worthiness of a post having clip-type slip base. For that, side impact test standard was made adapting the NCHRP Report 350, and 820kg-50km/h side impact tests were made for posts of D101.6mm(t=4.2mm) with and without slip base. Additionally, 35km/h side impact to the same post with slip base was conducted to check whether the clip-type slip base release mechanism works properly to the low impact speed. The tests revealed that the rigidly connected post was very hazardous to side impact while the post with the clip-type slip base reduced the impact severity tremendously.
Keywords
side impact; impact severity; crash worthiness; crash test; slip base;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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