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Title: FINITE-ELEMENT MODELING OF G2 GUARDRAIL
Accession Number: 00727324
Record Type: Component
Availability: Find a library where document is available Abstract: A finite-element model of the AASHTO G2 guardrail (weak-post W-beam) was developed and analyzed under vehicle impact conditions by using LLNL-DYNA3D, a nonlinear, explicit, three-dimensional, public-domain, finite-element code. The modeling procedures and problems encountered are described, and suggestions for further research are given. W-beam and S3 x 5.7 steel post mesh optimization procedures and results are described. A suitable point of fixity for the posts to account for soil effects is determined. W-beam-to-post connections were investigated by three different methods. Impact influence lengths and problems associated with modeling flexible barriers are discussed. The steps taken to assemble a model, including a prebuilt vehicle model, are given. The G2 guardrail was struck with the 820C vehicle model, developed by FHWA, at a speed of 26.69 m/sec (59.7 mph) and an angle of 15.4 degrees.
Supplemental Notes: This paper appears in Transportation Research Record No. 1528, Current Research on Roadside Safety Features.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Hendricks, B FWEKEZER, J WPagination: p. 130-137
Publication Date: 1996
Serial: ISBN: 0309062241
Features: Figures
(10)
; References
(10)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB
Created Date: Oct 21 1996 12:00AM
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