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Related Experiment Videos

Thickness measurement in composite materials using lamb waves viscoelastic effects.

E Moreno1, P Acevedo, M Castillo

  • 1Centro de Ultrasónica, ICIMAF, CITMA, Vedado, La Habana, Cuba.

Ultrasonics
|March 13, 2001
PubMed
Summary

This study applies Lamb modes for pulse propagation analysis in plates. The research evaluates viscoelastic properties of PVC and ferrocement for thickness measurement applications.

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Area of Science:

  • Materials Science
  • Solid Mechanics
  • Acoustics

Background:

  • Lamb modes are crucial for understanding wave propagation in thin plates.
  • Previous work explored thickness measurement in composites and coarse materials using this technique.
  • Viscoelastic properties significantly influence wave behavior in materials.

Purpose of the Study:

  • To investigate pulse propagation in plates considering viscoelasticity.
  • To evaluate the application of Lamb mode analysis for thickness measurement in PVC and ferrocement.
  • To present results on the influence of viscoelastic properties on wave propagation.

Main Methods:

  • Analysis of pulse propagation using Lamb modes.
  • Experimental or computational modeling of wave behavior in plates.

Related Experiment Videos

  • Characterization of viscoelastic properties of PVC and ferrocement.

    • Main Results:

    • Demonstration of Lamb mode behavior in viscoelastic materials.
    • Quantification of the effect of viscoelasticity on wave speed and attenuation.
    • Validation of the technique for thickness measurement in PVC and ferrocement.

    Conclusions:

    • Viscoelastic properties are critical factors in Lamb mode analysis for materials like PVC and ferrocement.
    • The technique shows promise for accurate thickness determination in these materials.
    • Further research can refine the application for diverse viscoelastic composites.