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    Design and Analysis of Approach Terminal Sections Using Simulation

    Source: Journal of Transportation Engineering, Part A: Systems:;1996:;Volume ( 122 ):;issue: 005
    Author:
    John D. Reid
    ,
    Dean L. Sicking
    ,
    Gene W. Paulsen
    DOI: 10.1061/(ASCE)0733-947X(1996)122:5(399)
    Publisher: American Society of Civil Engineers
    Abstract: Turned-down guardrail terminal sections were analyzed using LS-DYNA3D, a dynamic, nonlinear, large deformation finite-element modeling package with capabilities for simulating vehicular impacts into roadside hazards. A baseline simulation was conducted on the existing turned-down approach terminal section, as well as on various retrofit options. Simulation findings were used to identify potential design changes and to select the two most promising options. Modified designs were subjected to six low-speed and one high-speed full-scale crash tests with a minisize automobile. The crash testing verified that one of the retrofit designs would allow the W-beam rail to drop down without causing vehicle rollover when impacted end on by a minisize automobile. However, the revised design did not meet recommended safety standards when one of the weakened posts failed to break away as designed. It is believed that by revising the post installation procedures, the modified turned-down terminal section would perform satisfactorily.
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      Design and Analysis of Approach Terminal Sections Using Simulation

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/36964
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    • Journal of Transportation Engineering, Part A: Systems

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    contributor authorJohn D. Reid
    contributor authorDean L. Sicking
    contributor authorGene W. Paulsen
    date accessioned2017-05-08T21:03:24Z
    date available2017-05-08T21:03:24Z
    date copyrightSeptember 1996
    date issued1996
    identifier other%28asce%290733-947x%281996%29122%3A5%28399%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/36964
    description abstractTurned-down guardrail terminal sections were analyzed using LS-DYNA3D, a dynamic, nonlinear, large deformation finite-element modeling package with capabilities for simulating vehicular impacts into roadside hazards. A baseline simulation was conducted on the existing turned-down approach terminal section, as well as on various retrofit options. Simulation findings were used to identify potential design changes and to select the two most promising options. Modified designs were subjected to six low-speed and one high-speed full-scale crash tests with a minisize automobile. The crash testing verified that one of the retrofit designs would allow the W-beam rail to drop down without causing vehicle rollover when impacted end on by a minisize automobile. However, the revised design did not meet recommended safety standards when one of the weakened posts failed to break away as designed. It is believed that by revising the post installation procedures, the modified turned-down terminal section would perform satisfactorily.
    publisherAmerican Society of Civil Engineers
    titleDesign and Analysis of Approach Terminal Sections Using Simulation
    typeJournal Paper
    journal volume122
    journal issue5
    journal titleJournal of Transportation Engineering, Part A: Systems
    identifier doi10.1061/(ASCE)0733-947X(1996)122:5(399)
    treeJournal of Transportation Engineering, Part A: Systems:;1996:;Volume ( 122 ):;issue: 005
    contenttypeFulltext
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