Acoustoelastic and acoustoplastic effects of polymethylmethacrylate measured by V( f, z) defocusing measurement system

Chun I. Lin, Yung Chun Lee

研究成果: Article

1 引文 斯高帕斯(Scopus)

摘要

This paper applies a lensless line-focus poly(vinylidenefluoride) (PVDF) ultrasound transducer along with a V(f,z) defocusing measurement system to determine the acoustoelastic and acoustoplastic effects of polymethylmethacrylate (PMMA). Different strains are formed in PMMA samples using a uniaxial tensile loading mechanism. The velocity changes of leaky surface-skimming longitudinal waves under different strains are measured along various directions relative to the loading direction. The acoustoelastic coefficients are calculated from measurement results. Finally, the acoustoplastic effects of PMMA are also measured and determined. The results of acoustoelastic and acoustoplastic effects and the measurement system provide an efficient way for estimating applied and residual stresses in PMMA nondestructively.

原文English
文章編號6822991
頁(從 - 到)647-653
頁數7
期刊IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
61
發行號4
DOIs
出版狀態Published - 2014 四月

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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