Impact Performance of W-beam Guardrail Supported by Different Shaped Posts

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Title:	Impact Performance of W-beam Guardrail Supported by Different Shaped Posts
Authors:	Teng, Tso-Liang;Liang, Cho-Chung;Hsu, Ching-Yu;Shih, Chien-Jong;Tran, Thanh-Tung
Keywords:	Roadside Safety;Energy Absorption;Crashworthiness;LS-DYNA;EN1317
Date:	2016-04-11
Issue Date:	2017-06-09 02:10:18 (UTC+8)
Publisher:	Science Publishing Group
Abstract:	This study applied the finite element code LS-DYNA for evaluating the crashworthiness of W-beam guardrail. Four crash test simulations were conducted for evaluating the safety performance of the W-beam guardrail with four different post configuration according to the European standard EN1317. The results showed that the best performance was demonstrated by the sigma-shaped posts and the I-shaped posts absorbed the lowest amount of impact energy. The optimal result was registered by the barrier with sigma-shaped posts, which demonstrated a lower ASI value and higher energy crash absorption than the other models did.
Relation:	International Journal of Mechanical Engineering and Applications 4(2), p. 59-64
DOI:	10.11648/j.ijmea.20160402.14
Appears in Collections:	[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

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