|
|
|
Title: USING LS-DYNA SIMULATION TO SOLVE A DESIGN PROBLEM: BULLNOSE GUARDRAIL EXAMPLE
Accession Number: 00781511
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: A bullnose median barrier was designed and successfully crash tested head-on at 100 km/h with a 2000-kg pickup truck. After a failed pickup truck test, LS-DYNA was used to simulate the failed system, to determine the cause of the failure, and to evaluate a solution to the problem. Subsequent testing substantiated the LS-DYNA predictions. To keep up with the design project deadlines, some features of the simulation model were simplified. For other features, however, great attention to detail was required to make a useful model. Specifically, a considerable amount of effort went into defining the material failure criteria and appropriate mesh density for the guardrail, rolling tires for the truck model, and application of the relatively new cable element in LS-DYNA. The simulation effort is documented to demonstrate how LS-DYNA can be used to solve difficult design problems in roadside safety applications.
Supplemental Notes: This paper appears in Transportation Research Record No. 1690, Roadside Safety and Other General Design Issues.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Reid, J DBielenberg, B WPagination: p. 95-102
Publication Date: 1999
Serial: ISBN: 0309071208
Features: Figures
(7)
; Photos
(8)
; References
(13)
; Tables
(1)
TRT Terms: Identifier Terms: Subject Areas: Design; Highways; Materials; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Jan 21 2000 12:00AM
More Articles from this Serial Issue:
|
