Residual Stress Measurement of the Engineering Plastics by the Hole-Drilling Strain-Gage Method
A. Kohri, T. Mikami, Y. Suzukidownload PDF
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.
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
The article was published as article 17 of the book Residual Stresses 2018
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