Dynamic Subcomponent Testing and Finite Element Simulation of Guardrail Systems with Alternative Post Installation Methodologies

Scott, David; Stewart, Lauren; White, Donald; Bakhtiary, Esmaeel; Lee, Seo-Hun; Georgia. Dept. of Transportation. Office of Performance-Based Management and Research; Georgia Institute of Technology. School of Civil and Environmental Engineering

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Dynamic Subcomponent Testing and Finite Element Simulation of Guardrail Systems with Alternative Post Installation Methodologies

2018-08-10
By Scott, David ; Stewart, Lauren ; White, Donald ; ...

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English

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Details:

Creators:

Scott, David ; Stewart, Lauren ; White, Donald ; Bakhtiary, Esmaeel ; Lee, Seo-Hun

Scott, David ; Stewart, Lauren ; White, Donald ; Bakhtiary, Esmaeel ; Lee, Seo-Hun Less -
Corporate Creators:

Georgia. Dept. of Transportation. Office of Performance-Based Management and Research ; Georgia Institute of Technology. School of Civil and Environmental Engineering

Georgia. Dept. of Transportation. Office of Performance-Based Management and Research ; Georgia Institute of Technology. School of Civil and Environmental Engineering Less -
Subject/TRT Terms:

[+]

Dynamic Testing Dynamic Tests Finite Element Analysis Finite Element Method Guardrails Mow Strip
Publication/ Report Number:

FHWA-GA-18-1508
Resource Type:

Tech Report
Geographical Coverage:

United States ; Georgia

United States ; Georgia Less -
Edition:

Final Report
Corporate Publisher:

Georgia. Dept. of Transportation
Abstract:

This report details the results of an experimental and numerical investigation into the performance of guardrail posts driven through asphalt layers. Dynamic subcomponent tests were performed on a number of post/asphalt layer configurations. The dynamic test results were used to develop performance criteria to indicate expected levels of restraint for guardrail posts driven through asphalt layers. In addition, subcomponent and full-scale numerical simulations were performed that included a more detailed characterization for the asphalt layer. The tests and simulations indicate that geometric parameters of the asphalt layer are the critical parameters in evaluating the restraint of the asphalt layer on the post. Reducing specific geometric parameters or making targeted alterations of the asphalt layer may reduce restraint in the system to a level similar to that found when using a leave-out around the post.
Format:

PDF
Funding:

0013698
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:2a0a963d07b38906fb7770eecf2d2dd4ccc08ab5127834828dfa2e670164d2f3
Download URL:

https://rosap.ntl.bts.gov/view/dot/37002/dot_37002_DS1.pdf
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Dynamic Subcomponent Testing and Finite Element Simulation of Guardrail Systems with Alternative Post Installation Methodologies

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