Presenter Information

Wolfgang Sachse, Cornell University

Location

Ithaca, NY

Start Date

1978 12:00 AM

Description

The dispersion relation and the propagational speeds of waves in dispersive solids are determined by a newly developed technique in which the phase function of spectral analyzed broadband pulses is determined. The method is simpler than and in agreement with the continuous wave-resonance technique. Application is made to ultrasonic pulses propagating in fiber-reinforced composite materials and other dispersive wave propagation situations.

Book Title

Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE

Chapter

5. New Techniques and Phenomena

Pages

122-126

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Measurement of Phase and Group Velocities of Dispersive Waves in Solids

Ithaca, NY

The dispersion relation and the propagational speeds of waves in dispersive solids are determined by a newly developed technique in which the phase function of spectral analyzed broadband pulses is determined. The method is simpler than and in agreement with the continuous wave-resonance technique. Application is made to ultrasonic pulses propagating in fiber-reinforced composite materials and other dispersive wave propagation situations.