Residual Stress Measurement of Industrial Polymers by X-Ray Diffraction

Abstract:

In this study, residual stresses in polyamide (PA) materials were measured by the x-ray stress measurement technique. X-ray stress measurement is widely used to measure residual stresses, however, this measurement is not many used in polymeric materials. There are two problems for measuring residual stresses in polymer. Firstly, the diffraction peak from the polymer appears at the low 2θ angle region. Thus the measurement accuracy for strains reduces. Secondly, the low 2θ angle region is very difficult to use the sin2ψ method. In this study, Ω-diffractometer with transmission method was used to resolve these problems. The measured data was plotted in the d-sin2ψ diagram, and it was coincident with the linear regression line clearly. X-ray elastic constant (XEC) of PA was estimated from these results.

• Periodical: Advanced Materials Research (Volume 1110)
• Pages: 100-103
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1110.100
• Online since: June 2015
• Authors: Doi Taisei*, Masayuki Nishida, Ozaki Junichi
• Keywords: Polyamide, Residual Stress Measurement, Transmission Diffraction Method, X-Ray

References

[1] Y. Ikeuchi, T. Matsue and T. Hanabusa: 5th Int. Conf. on Residual Stresses. (1997), 958-963.

[2] Y. Ikeuchi, K. Iga and T. Hanabusa: J. Soc. Mater. Sci., Japan. (1994), 792-798.

[3] V. Hauk, A. Troost and D. Ley: Advanced in Polymer Technology. 7(1987), 389-396.

[4] R. Meske and E. Schnack: Materials Science Forum. 347-349(2000), 217-222.

[5] Yoshitaka Watanabe, Masayuki Nishida, et. al.: Advances in X-ray Analysis. 52(2009), 271-278.

[6] M. Kitamura, M. Nishida and T. Hanabusa: Mater. Sci. Forum. 681 (2011), 381-386.

[7] M. Nishida, T. Hanabusa, et. al.: Key Engineering Materials. 353-358 (2007), 2423-2426.

[8] The Society of Materials Science Japan ed. Standard Method for X-Ray Stress Measurement (2005), ISBN 4-901381-27-X, The Society of Materials Science Japan.