Residual Stress Measurement of the Engineering Plastics by the Hole-Drilling Strain-Gage Method

Residual Stress Measurement of the Engineering Plastics by the Hole-Drilling Strain-Gage Method

A. Kohri, T. Mikami, Y. Suzuki

Abstract. The hole-drilling method is regulated as the ASTM E837 standard and has been widely used for the residual stress measurement of metallic materials. We applied this method to orthotropic plastic specimens. Known stress distributions with depth were given by the four points bending tests and the calculated stresses from the measured relieved strains were compared with the given values analyzed by the beam theory. Consequently, the calculated uniform stresses based on both orthotropic and isotropic approaches were equivalent to the beam theory analyses. In addition, the calculated non-uniform stresses with depth in accordance with ASTM E837 standard agreed well with the beam theory values. It was confirmed that the residual stress measurement by the hole-drilling method is effective for the orthotropic plastic materials.

Keywords
ASTM E837, Hole-Drilling, Plastics, Orthotropic Material, Injection Molding

Published online 9/11/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: A. Kohri, T. Mikami, Y. Suzuki, ‘Residual Stress Measurement of the Engineering Plastics by the Hole-Drilling Strain-Gage Method’, Materials Research Proceedings, Vol. 6, pp 101-106, 2018

DOI: https://dx.doi.org/10.21741/9781945291890-17

The article was published as article 17 of the book Residual Stresses 2018

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] ASTM E 837-13a, Standard Test Method for Determining Residual Stresses by the Hole-Drilling Strain-Gauge Method 2013.
[2] G.S. Schajer and L. Yang, Residual-stress measurement in orthotropic materials using the　hole-drilling method, Exp. Mech., 34, 1994. https://doi.org/10.1007/BF02325147
[3] P. Pagliaro, B. Zuccarello, Residual Stress Analysis of Orthotropic Materials by the Through-hole Drilling Method, Exp. Mech. 47, 2007. https://doi.org/10.1007/s11340-006-9019-3