Technical Reports

Experimental Residual Stress Measurement of New and Used Commuter Rail Wheels

  • 01
  • Jan
  • 1994
AUTHOR: Cameron Stuart
OFFICE: RPD
SUBOFFICE: RPD-30
REPORT NUMBER: DOT/FRA/ORD-94/12
KEYWORDS: Residual Stress; Wheels; Saw Cutting; Moire Interferometry
ABSTRACT: The report outlines the procedures used and presents the data obtained during the wheel saw-cutting portion of the Cracked Wheel Investigation. The purpose of the wheel saw cutting experiment was to determine the magnitude and direction of the residual stresses in a new, as well as a service-worn, 'L' grade, 32 inch diameter, railroad wheel. These wheels were instrumented and then radially cut at two locations (180 degrees apart) to relieve the residual stresses. Data were taken using strain gages, a clip-on displacement gage, and moire interferometry. Data from all three measurement techniques and a description of the experimental procedure and equipment are included.

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