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

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 am...

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Bibliographic Details
Published in:Key engineering materials 2018-07, Vol.773, p.106-110
Main Authors: Yao, Huang, Hu, Ning, Liu, Yao Lu, Xu, Hong, Wu, Da Ming, Liu, Ying
Format: Article
Language:English
Subjects:
Experimental methods
Lamb waves
Polymers
Residual stress
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Summary: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.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.773.106