Finite element modeling and validation of a 3-strand cable guardrail system

The primary purpose of longitudinal safety barriers, such as cable barriers, is to contain and/or redirect errant vehicles that depart the roadway, hence keeping them from entering opposing travel lanes or encountering terrain features and roadside objects that may cause severe impacts. In this study, a detailed finite element model of a three-strand cable barrier was developed and validated against a previously conducted full-scale crash test. The full-scale crash test and simulation were setup for an impact of the cable barrier with a 2000 kg pickup truck at an angle of 25 deg and an initial velocity of 100 km/hr. This setup is in accordance with the National Cooperative Highway Research Program (NCHRP) Report 350 guidelines for Test Level 3 safety performance. This paper provides guidelines for simulating cable barrier guardrail systems. Detailed methods for system simulation involving dynamic interactions of soil/post, post/hook bolts, cable/hook bolts and cable/truck are discussed. Results from the simulation and comparisons with the full-scale crash test are presented. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13588265
• Authors:
  • Mohan, Pradeep
  • MARZOUGUI, D
  • MECZKOWSKI, L
  • BEDEWI, N
• Publication Date: 2005

Language

• English

Media Info

• Pagination: 267-73
• Serial:
  • International Journal of Crashworthiness
  • Volume: 10
  • Issue Number: 3
  • Publisher: Taylor & Francis
  • ISSN: 1358-8265
  • Serial URL: http://www.tandfonline.com/loi/tcrs20

Subject/Index Terms

• TRT Terms: Crash tests; Finite element method; Guardrails; Simulation
• ITRD Terms: 6490: Finite element method; 1648: Impact test (crash); 1686: Safety fence; 9103: Simulation
• Subject Areas: Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 01012335
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 20 2005 3:25PM