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

Details

• Creators:
  Eshraghi, Shaun ; Carolan, Michael E.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
• Subject/TRT Terms:
  • Cracking
  • Crash tests
  • Finite element method
  • Plasticity
  • Steel
  • Tank cars
  • Tension tests
  • Rolling stock
  • Transportation safety
  • Hazardous materials Steel fracture
  More +
• Publication/ Report Number:
  DOT/FRA/ORD-20/46
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  April 5, 2019 – August 20, 2020
• Contracting Officer:
  Francisco, González, III
• Corporate Publisher:
  United States. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
• Abstract:
  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
• Format:
  PDF
• Funding:
  Task Order SB929;RR28A400
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/55754/dot_55754_DS1.pdf
• File Type:
  [PDF - 2.13 MB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:840ac8be3be4d2812814624d125d5af3b42ac610c76589d1d1131efef78c09b7aa7b09a9400a5df85ac13a7f6d3771b8c8722902f1c96316d11e73152b6f36fe