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1
Nov
1987
Technical Reports
Determinations of Dynamic Fracture Toughness Properties of Rail Steels
Subject
Rail and Infrastructure Integrity
Keywords: Fracture Mechanics, Residual Stress, Finite Element Analysis, Crack Arrest, Full-Section Impact Test, Beam-on-Elastic Foundational Model
Abstract: Motivated by the occurrence of a long-running rail web fracture in service, dynamic fracture mechanics research was undertaken to (1) quantify the crack driving force due to the...
Report Number
DOT/FRA/ORD-87/08
1
Nov
1987
Technical Reports
Wheel Failure Mechanisms of Railroad Cars: Volume II - Technical Task Summaries
Subject
Facilities & Test Equipment
Keywords: Residual Stress, Thermal Cracking, Wheel Stress Analysis, Wheel Steel Fatigue
Abstract: This report summaries an extensive research program into the causes of wheel thermal failure. Results of material property tests, review of failure data, dynamometer tests,...
Report Number
R-680 - Volume II
Office
RRD
1
Oct
1987
Technical Reports
Investigation of Rail Bolt Hole Cracks
Subject
Evaluation
Keywords: Fretting, Rail, Rail End, Fatigue, Crack Initiation, Crack Growth, Corner Cracks, Bolt Holes, Stress Intensity Factor
Abstract: This document is a collection of two reports on the rail bolt hold crack. part I describes the development of a model based on beam-on-elastic foundation analysis to calculate the...
Office
RRD
27
Aug
1987
Technical Reports
Development and Testing of a Stuck Brake Detector for Wayside Inspection of Railroad Cars
Keywords: Automated Wheel Inspection; Thermal Wheel Damage; Rail Force Measurement
Abstract: Stuck brakes and unreleased hand brakes can cause the wheels of moving trains to overheat and develop thermal cracks. A method of detecting stuck brakes by direct measurement of...
Report Number
DOT/FRA/ORD-87/12
Office
RDI-20
5
Aug
1987
Technical Reports
High Performance, High Cube Covered Hopper Car Program, Transit America's HI CUBE 2000 Car Dynamic Performance Tests, Summary Report
Subject
Facilities & Test Equipment
Keywords: Derailment-Stability, Curving, Hunting, Wheel Load, Articulation, Suspension, Bounce, Rocking
Abstract: As part of the co-operative Track-Train Dynamics High Performance, High Cube Covered Hopper Program, Transit America provided a prototype car - the HI CUBE 2000 for dynamic...
Report Number
R-636
Office
RRD