Research on the Experimental Method of Measuring Internal Stress of Polymer Sheet Product by Lamb Wave

Abstract:

The internal stress of the polymer sheet could change when the process condition and structure characteristics of the polymer chain is different. As Lamb wave has different damping when passing through the anisotropic media, fixed distance irradiation and amplitude sampling is used to analyze the amplitude attenuation in different regions, so as to determine the stress distribution in different regions of the sheet. The test results and the simulation results with Moldflow are consistent, so it is feasibility to measure internal stress of polymer sheet product through by Lamb wave.

• Periodical: Key Engineering Materials (Volume 773)
• Pages: 106-110
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.773.106
• Online since: July 2018
• Authors: Hong Xu, Ning Hu, Huang Yao*, Da Ming Wu, Ying Liu, Yao Lu Liu
• Keywords: Amplitude Attenuation, Internal Stress, Polymer Sheet Products, Ultrasonic Lamb Wave

References

[1] D. J. Hughes, E. L. Heeley, C. Curfs, A non-destructive method for the measurement of residual strains in semi-crystalline polymer components. Mater. Lett. 65 (2011) 530-533.

DOI: 10.1016/j.matlet.2010.10.046

[2] J. N. Liu, B. S. Xu, H. D. Wang. Development trend of measuring method for residual stress of material. Phys. Chem. Exam.: Phys. Catal. 49(10) (2013) 677-682.

[3] J. Shen, B. Lin, Y. G. Chi, M. Liu. Research status of residual stress measuring technique by physical method. Mater. Guide, 26(5) (2012) 120-125.

[4] X. Y. Cheng, X. M. Wang. Analysis and solutions of stress and deformation of injection molded parts. Appl. Eng. Plast. 9(34) (2006) 31-37.

[5] F. Uzun, A. N. Bilge. Immersion ultrasonic technique for investigation of total welding internal stress. Proc. Eng. 10 (2011) 3098-3013.

DOI: 10.1016/j.proeng.2011.04.513

[6] R. M. Sanderson, Y. C. Shen. Measurement of residual tress using laser-generated ultrasound. Int. J. Press. Vess. Pip. 87 (2010) 762-765.

[7] B. Liu, S. Y. Dong, B. S. Xu, P. He. Coating thickens affects surfaces stress measurement of brush electro-plating nickel coating using Rayleigh wave approach. Ultrasonics 52 (2012) 861-865.

DOI: 10.1016/j.ultras.2012.02.003

[8] Y. L. Liu, N. Hu, H. Xu, W. F. Yuan, C. Yan, Y. Li, R. Goda, Alamusi, J. Qiu, H. Ning and L. Wu. Damage evaluation based on a wave energy flow map using multiple PZT sensors. Sensors. 14 (2014) 1902-(1917).

DOI: 10.3390/s140201902

[9] A. Homma, Monitoring of plastic deformation in metal materials using Lamb Waves, Chiba University, Japan, (2014).

[10] M. X. Deng. Nonlinear Lamb waves in solid plates. Science Press. (2006).

[11] D. E. Bray, P. Junghans. Application of the L CR ultrasonic technique for evaluation of post-weld heat treatment in steel plates. Ndt & E Int. 28(4) (1995) 235-242.

DOI: 10.1016/0963-8695(95)00020-x

[12] H. Lu, X. S. Liu, J. G. Yang, et al. Ultrasonic stress evaluation on welded plates with Lcr wave. Sci. Tech. Weld. Join. 13(1) (2008) 70-74.

[13] P. D. Coates, S. E. Barnes, M. G. Siley, E. C. Brown, H. G. M. Edwards, I. J. Scowen. In-process vibrational spectroscopy and ultrasound measurements in polymer melt extrusion. Polym. 44 (2003) 5937-5949.

DOI: 10.1016/s0032-3861(03)00544-5