01476944

Component

http://www.trb.org/Publications/Blurbs/168537.aspx

In this paper development details of a new lightweight N2-H1 performance level guardrail, called AG04, is explained. A series of computer simulations and crash tests were performed for the crashworthiness evaluation of the AG04 system. A nonlinear multipurpose 3-D finite element code, LS-DYNA, was used for the crash test simulations. After two failed crash tests necessary modifications were made and AG04 guardrail successfully met the criteria outlined in European Normative (EN) 1317-1 and 2. AG04 achieved N2-W3-A and H1-W4-A performance levels when breakaway bolts were used between post and rail. Crash test results showed that AG04 system with both A and B type W-beam rails performed similarly, which indicated either rail type can be used for an acceptable performance. It was concluded that properties of post-to-rail bolt and details of 10,000-kg truck are the most critical parameters for a satisfactory crash test performance for the AG04-2.0 barrier.

01476927

English

pp 126-134

2013-2

Transportation Research Circular

Roadside Safety Design and Devices: International Workshop

Web

Figures; Photos; References; Tables

Bolts; Breakaway supports; Crash tests; Crashworthiness; Guardrails; Performance tests; Simulation

European Normative Standards; LS-DYNA (Computer program)

Design; Highways; Safety and Human Factors; I20: Design and Planning of Transport Infrastructure; I85: Safety Devices used in Transport Infrastructure

TRIS, TRB, ATRI

Mar 25 2013 3:23PM

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