Data Management for the Evaluation of Residual Stresses by the Incremental Hole-Drilling Method

[+] Author and Article Information
Dario Vangi

Dipartimento di Meccanica e Tecnologie Industriali, Universitá di Firenze, Via di Santa Marta, 3, 50139 Firenze, Italy

J. Eng. Mater. Technol 116(4), 561-566 (Oct 01, 1994) (6 pages) doi:10.1115/1.2904329 History: Received July 16, 1993; Revised October 04, 1993; Online April 29, 2008


The semidestructive incremental hole-drilling method commonly used to evaluate residual stresses is exceedingly sensitive to experimental errors, with sensitivity increasing as hole depth increases. To determine stress variations through the engine thickness, it is necessary to use accurate drilling methods, as well as suitable mathematical models and procedures to minimize the errors associated with residual stress measurement. This work examines the effects of measurement errors on the evaluation of residual stresses with the integral method. An enhanced procedure for managing the experimental data is proposed that allows evaluation of the residual stresses with thickness variations.

Copyright © 1994 by The American Society of Mechanical Engineers
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