Abstract
An acoustic emission (AE) measurement was performed on a typical ductile polymer, polycarbonate (PC), during mechanical deformation, using a position detective AE measuring system. To find a correlation between the AE and mechanical deformation process, several AE characteristics, such as a wave form, duration time of AE signals and distribution of AE sources in the tensile specimen, were analyzed. The results suggest that there are two different mechanisms for AE occurrence in PC, one probably generated upon submicrocrack formation and the other, associated with molecular chain slipping at the necking front.
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Shirouzu, S., Shichijyo, S., Taki, S. et al. Acoustic Emission during Mechanical Deformation of Polycarbonate. Polym J 16, 223–228 (1984). https://doi.org/10.1295/polymj.16.223
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DOI: https://doi.org/10.1295/polymj.16.223