Characterizing Roadside Hardware Materials for LS-DYNA3D Simulations

Details

• Creators:
  Wright, Amy E. ; Malcom, H. R.
• Corporate Creators:
  United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
• Corporate Contributors:
  United States. Federal Highway Administration. Office of Safety and Traffic Operations R&D
• Subject/TRT Terms:
  • Finite element method
  • Guardrails
  • Materials tests
• Publication/ Report Number:
  FHWA-RD-96-108
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Abstract:
  Finite element models have three parts: geometry, connections and material properties. Being the visible parts of a model, geometry and connections are generally carefully considered. Material properties are often not chosen with the same degree of care although they are every bit as important to obtaining good results. Accurate simulations of vehicles impacting roadside hardware require an understanding of both the material behavior and the mathematical material models in LS-DYNA3D. A method for comparing LS-DYNA3D simulations to typical ASTM materials tests is described. Material input properties for W-beam guardrail steel, guardrail posts, flanged-channel sign posts and Ford Festiva fenders are found for LS-DYNA3D based upon experimental quasi-static tests. Strain-rate sensitive material models in LS-DYNA3D are explored.
• Format:
  PDF
• Funding:
  NHI GRF Project #DDE94-X-00425
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/68119/dot_68119_DS1.pdf
• File Type:
  [PDF - 2.69 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:98739286f03cb9c5cc4029a6ac47a1514220a2e66988b209e5e2ff5e2692bb600fd20de86bf398dad75efad5c11cb3b1437705670a83a0a0a2b218695a3559d2