Inverse Hole-Drilling Method for Residual Stress Investigation

Abstract:

The method for residual stress measurement using through the hole drilling and investigation of the residual stresses relief with the help of incremental layers removing is presented. Drilling the rosette-hole from the opposite side – the inverse layers removing – have to be used for evaluation of residual stress near the back side of the object wall in cases when this surface is inaccessible for any hole-drilling instrument. The strain gauge rosette is installed on the opposite side of the drilled wall and a new mechanical task of incremental layers removal must be solved. The calibration constants for residual stress evaluation of HBM RY21 type rosette for this case were derived using numerical modeling by FEA and its experimental verification.

• Periodical: Applied Mechanics and Materials (Volume 827)
• Pages: 117-120
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.827.117
• Online since: February 2016
• Authors: Jaroslav Vaclavik, Stanislav Holy, Jiří Jankovec, Petr Jaros, Otakar Weinberg
• Keywords: Hole-Drilling Method, Incremental Drilling Method, Residual Stress, Thick Specimen

References

[1] N.J. Rendler, I. Vigness, Hole-Drilling Strain-Gauge Method of Measuring Res. Stresses, Exp. Mech. 6, No. 12, (1966).

[2] G.S. Schajer, Measurement of Non-uniform residual stress using the hole-drilling method, Journal of Engineering materials and technology, Vol. 110, No. 4, (1988), Part 1: pp.338-343, Part II: pp.344-349.

DOI: 10.1115/1.3226059

[3] ASTM E837-13a, Standard Test Method for Determining Residual Stresses by Hole-drilling Strain-gage Method. American Society for Testing and Materials, September (2013).

DOI: 10.1520/e0837-13

[4] O. Weinberg et al., Experimental Calibration of Computational Constants for Hole-drilling Method, Proceedings Paper in: 13th conference ICEM 13, Alexandroupolis, Greece, 2007, pp.477-478.