Evaluation of Concrete Models in LS-DYNA to Develop a MASH Test Level 6 (TL-6) Barrier System – Phase I

In locations that have large truck volumes, barriers that meet the American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware test level (TL) 4 or 5 standards are utilized. Unfortunately, while these designs are appropriate for tractor trailers, they are not designed to TL-6 standards, which apply to tanker trucks. To date, only one TL-6 vehicle containment system has been developed, but cost issues have prevented its widespread implementation. Consequently, critical infrastructure (i.e., bridge abutments) are not protected against tanker truck crashes, which puts critical facilities (e.g., schools, hospitals, etc.) at risk of exposure to hazardous materials after a crash. To this end, it is necessary to develop a new, cost-effective, and structurally adequate TL-6 safety barrier system. Among various aspects for the development, selecting a proper constitutive material model and model parameters is considered one of essential components, because the material model and model parameters used in computational simulation can significantly reduce time and costs for barrier design without compromising predicting power. This research is to identify the proper constitutive model and model parameters for predicting behavior of concrete in the new TL-6 safety barrier system.

• Record URL:
  http://matc.unl.edu/research/research_project.php?researchID=548

Language

• English

Project

• Status: Completed
• Funding: $232258
• Contract Numbers:

  69A3551747107

• Sponsor Organizations:

  Mid-America Transportation Center

  University of Nebraska-Lincoln
  2200 Vine Street, PO Box 830851
  Lincoln, NE  United States  68583-0851

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Mid-America Transportation Center

  University of Nebraska-Lincoln
  2200 Vine Street, PO Box 830851
  Lincoln, NE  United States  68583-0851
• Project Managers:

  Syslo, Mick

  Stearns, Amy

• Performing Organizations:

  University of Nebraska, Lincoln

  1400 R Street
  Lincoln, NE  United States  68588
• Principal Investigators:

  Rasmussen, Jennifer

• Start Date: 20180701
• Expected Completion Date: 20200630
• Actual Completion Date: 20200731
• USDOT Program: University Transportation Centers Program
• Source Data: RiP Project 91994-21

Subject/Index Terms

• TRT Terms: Barriers (Roads); Concrete; Evaluation and assessment; Highway safety; Tank trucks
• Identifier Terms: LS-DYNA (Computer program)
• Subject Areas: Bridges and other structures; Design; Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 01682837
• Record Type: Research project
• Source Agency: Mid-America Transportation Center
• Contract Numbers: 69A3551747107
• Files: UTC, RIP
• Created Date: Oct 9 2018 7:25PM