Abstract
This paper examines precision of the contour method using five residual stress measurement repeatability studies. The test specimens evaluated include: an aluminum T-section, a stainless steel plate with a dissimilar metal slot-filled weld, a stainless steel forging, a titanium plate with an electron beam slot-filled weld, and a nickel disk forging. These specimens were selected to encompass a range of typical materials and residual stress distributions. Each repeatability study included contour method measurements on five to ten similar specimens. Following completion of the residual stress measurements an analysis was performed to determine the repeatability standard deviation of each population. In general, the results of the various repeatability studies are similar. The repeatability standard deviation tends to be relatively small throughout the part interior and there are localized regions of higher repeatability along the part perimeter. The repeatability standard deviations over most of the cross-section range from 5 MPa, for the aluminum T-section, to 35 MPa, for the stainless steel forging. These results provide expected precision data for the contour method over a broad range of specimen geometries, materials, and stress profiles.
Submitted for presentation at SEM 2017 Annual Conference and Exposition on Experimental and Applied Mechanics, Indianapolis, IN, June 12–15, 2017
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
E11 Committee: Practice for use of the terms precision and bias in ASTM test methods. ASTM International, West Conshohocken (2010)
Hill, M.R., Olson, M.D.: Repeatability of the contour method for residual stress measurement. Exp. Mech. 54(7), 1269–1277 (2014)
Olson, M.D., Hill, M.R., Willis, E, Peterson, A.G., Patel, V.I., Muránsky, O.: Assessment of weld residual stress measurement precision: Mock-up design and results for the contour method. J. Nucl. Eng. Radiat. Sci. (2015)
SAE Aerospace: Aerospace material specification 4342: Aluminum alloy extrusions: Solution heat treated, stress relieved, s, and overaged. (2006)
Prime, M.B.: Cross-sectional mapping of residual stresses by measuring the surface contour after a cut. J. Eng. Mater. Technol. 123(2), 162–168 (2001)
Prime, M.B., DeWald, A.T.: The contour method. In: Schajer, G.S. (ed.) Practical Residual Stress Measurement Methods, Ch 5, pp. 109–138. Wiley, West Sussex (2013)
Wong, W., Hill, M.R.: Superposition and destructive residual stress measurements. Exp. Mech. 53(3), 339–344 (2013)
Acknowledgements
The authors acknowledge, with gratitude, the U.S. Air Force for providing financial support for this work (contract FA8650-14-C-5026). We would also like to acknowledge Steve McCracken from the Electric Power Research Institute for supplying and fabricating the stainless steel plate with a dissimilar metal slot-filled weld, Thomas Reynolds from Sandia National Laboratory for providing the stainless steel forgings, and Brian Streich from Honeywell for providing the nickel disk forgings.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Olson, M.D., DeWald, A.T., Hill, M.R. (2018). Repeatability of Contour Method Residual Stress Measurements for a Range of Material, Process, and Geometry. In: Baldi, A., Considine, J., Quinn, S., Balandraud, X. (eds) Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems, Volume 8. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-62899-8_16
Download citation
DOI: https://doi.org/10.1007/978-3-319-62899-8_16
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-62898-1
Online ISBN: 978-3-319-62899-8
eBook Packages: EngineeringEngineering (R0)