Quick Calibration of Fracture Behaviors in TC128 Steel for Finite Element Modeling

From April 5, 2019, to August 20, 2020, the Volpe National Transportation Systems Center (Volpe) performed a series of finite element (FE) analyses of uniaxial tensile tests to calibrate material models for tank car steels (TC128) from two recent side impact tests. The material models, which characterize plasticity and ductile fracture, are used in full-scale FE analyses to predict puncture of various tank car designs. This report describes the use of the Bao-Wierzbicki quick calibration procedure to model TC128 fracture. A comparison took place of material models calibrated using test results from dogbone and smooth round bar tensile geometries. Based on the FE analysis results, researchers made recommendations for quick calibration of fracture in TC128.

• Record URL:
  • https://railroads.dot.gov/elibrary/quick-calibration-fracture-behaviors-tc128-steel-finite-element-modeling
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/55754
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/55785
• Corporate Authors:

  Volpe National Transportation Systems Center

  Cambridge, MA  United States  02142

  Federal Railroad Administration

  Office of Railroad Policy and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Federal Railroad Administration

  Office of Research, Development, and Technology
  Washington, DC  United States 
• Authors:
  • Eshraghi, Shaun
  • 0000-0002-8152-0838
  • Carolan, Michael
  • 0000-0002-8758-5739
• Publication Date: 2020-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report; Technical Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 43p

Subject/Index Terms

• TRT Terms: Cracking; Crash tests; Finite element method; Plasticity; Steel; Tank cars; Tension tests
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 01758005
• Record Type: Publication
• Report/Paper Numbers: DOT/FRA/ORD-20/46, Project No. RR28A400
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Nov 18 2020 1:54PM