Development and application of rail defect fracture models to assess remedial actions

Mayville, R A; Stringfellow, R G; Gallagher, Susan; John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration

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Development and application of rail defect fracture models to assess remedial actions

1993-08-01
By Mayville, R A ; Stringfellow, R G

[PDF-1.84 MB]

English

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Details:

Creators:

Mayville, R A ; Stringfellow, R G

Mayville, R A ; Stringfellow, R G Less -
Corporate Creators:

Gallagher, Susan ; John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration

Gallagher, Susan ; John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration Less -
Subject/TRT Terms:

[+]

Cracking Defects Dynamic Structural Analysis Finite Element Analysis Finite Element Method Fracture Mechanics Rail (Railroads) Rail Cracks Rail Defects Static Structural Analysis Stress Analysis Structural Analysis
Publication/ Report Number:

DOT-FRA-ORD-93-33 ; DOT-VNTSC-FRA-93-12

DOT-FRA-ORD-93-33 ; DOT-VNTSC-FRA-93-12 Less -
Resource Type:

Tech Report
Edition:

Final report; June 1991 - January 1993
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration
Abstract:

The fracture mechanics models were refined for two types of rail defects - the bolt hole crack and the vertical split head. Beam-type finite element analysis was conducted to determine the effects of joint bar looseness, rail height mismatch and train speed on the static and dynamic components of the crack driving force for the bolt hole crack. Both two- and three-dimensional finite element analyses were conducted to determine the Modes I and II stress intensities for a kinked vertical split head crack. The results from these analyses were reviewed to determine their implication on remedial actions.
Format:

PDF
Funding:

RR328/R3026 ; DTRS-57-89-D-00007 ; VA1032

RR328/R3026 ; DTRS-57-89-D-00007 ; VA1032 Less -
Collection(s):

Federal Railroad Administration Volpe Center
Main Document Checksum:

[+]

urn:sha256:efe4fae27ab2517c87ac5dc1cda4f0bfdfea456aaba25297f6a7b7f446476548
Download URL:

https://rosap.ntl.bts.gov/view/dot/8864/dot_8864_DS1.pdf
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Development and application of rail defect fracture models to assess remedial actions

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