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1
Jan
2002
Technical Reports
Railroad Tank Car Nondestructive Methods Evaluation
Subject
Hazardous Materials
Keywords: Acoustic emissions, liquid penetrant, magnetic particle, radiography, ultrasonics, and visual testing, probability of detection (POD), nondestructive evaluation (NDE), nondestructive testing (NDT), nondestructive inspection (NDI)
Abstract: An evaluation of nondestructive testing (NDT) methods, authorized for use in replacing the current hydrostatic pressure test for qualification or re-qualification of railroad...
Report Number
DOT/FRA/ORD-01/04
Office
RRD
1
Jan
2002
Technical Reports
Steel Alloys with Lower Bainite Microstructures for Use in Railroad Cars and Track
Subject
Hazardous Materials
Abstract: In-line hardening of railroad rails to produce a very fine pearlite microstructure has become a commercial reality. A question that this report seeks to answer is whether or not...
Report Number
DOT/FRA/ORD-01/15
Office
RRD
1
Dec
2001
Technical Reports
Effects Of Coupler Height Mismatch On The Structural Integrity Of Railroad Tank Car Stub Sills
Subject
Freight Operations,
Hazardous Materials
Keywords: Tank Car, Stub Sill, Impact, Coupler Height Mismatch, Draft Gears, Vertical Forces, Buff Loads, Draft Loads, Fatigue, Tank Car Safety, Track Stiffness Transitions, Impact Simulations
Abstract: This project evaluated the safety implications of coupler height mismatches on the integrity of railroad tank car stub sills, through a series of static and impact tests. The test...
Report Number
DOT/FRA/ORD-01/14
Office
RRD
1
Nov
2001
Technical Reports
Evaluation of Semi-Empirical Analyses for Railroad Tank Car Puncture Velocity, Part I: Correlations with Experimental Data
Subject
Hazardous Materials
Keywords: tank car, coupler impact, indentation, puncture velocity, tank car head, shield protection
Abstract: This report is the first in a two-part series that focuses on methodologies to determine the puncture velocity of tank car shells. In this context, puncture velocity refers to the...
Report Number
DOT/FRA/ORD-01/21.I
Office
RRD
1
Nov
2001
Technical Reports
Evaluation of Semi-Empirical Analyses for Railroad Tank Car Puncture Velocity, Part II: Correlations with Engineering Analyses
Subject
Hazardous Materials
Abstract: This report is the second in a series focusing on methods to determine the puncture velocity of railroad tank car shells. In this context, puncture velocity refers to the impact...
Report Number
DOT/FRA/ORD-01/21.II
Office
RRD