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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...
HQ-2019-1327
On March 3, 2019, at 11:18 p.m., MST, eastbound Union Pacific Railroad Company (UP) coal train 2CBTWL9-03 (Train 1) derailed 35 cars on Main Track 2, at Milepost (MP) 76.45 on the North Platte Service Unit, South Morrill Subdivision, near Oshkosh, Nebraska. Train 1 had two locomotives on the...
Track Data Auditing System – Phase II
Transportation Technology Center, Inc. (TTCI), through a program sponsored by the Federal Railroad Administration (FRA), developed the architecture and core requirements for a Positive Train Control (PTC) Track Database Auditing System (TDAS), including system, subsystem, and interface...
Automated Train Operations (ATO) Safety and Sensor Development
In support of industry and Federal Railroad Administration (FRA) objectives to develop methods to increase automation in freight rail operations, Transportation Technology Center, Inc. (TTCI) performed a requirements analysis and initiated a safety analysis for a locomotive-borne sensor platform...