Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

Wood is an anisotropic, inhomogeneous material that strongly attenuates ultrasound due to scattering from the variety of inhomogeneities which constitute its microstructure. In addition, the distribution of inhomogeneities within a particular sample of wood varies considerably, causing the measured (macroscopic) properties to appear to be random variables with rather large variance. Wood biology research, however, tells us that the distributions of tissue elements are at least quasiperiodic. A knowledge of the ultrasonic effects of various tissue elements, coupled with wood anatomical data, should improve our capacity to interpret the interactions of ultrasonic signals with wood. We present here some early results in our investigation into the effects of the various inhomogeneities on the velocity and attenuation of ultrasonic signals.

Volume

14B

Chapter

Chapter 6: Material Properties

Section

Mostly Metals

Pages

1661-1668

DOI

10.1007/978-1-4615-1987-4_213

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Examination of Wave Propagation in Wood from a Microstructural Perspective

Snowmass Village, CO

Wood is an anisotropic, inhomogeneous material that strongly attenuates ultrasound due to scattering from the variety of inhomogeneities which constitute its microstructure. In addition, the distribution of inhomogeneities within a particular sample of wood varies considerably, causing the measured (macroscopic) properties to appear to be random variables with rather large variance. Wood biology research, however, tells us that the distributions of tissue elements are at least quasiperiodic. A knowledge of the ultrasonic effects of various tissue elements, coupled with wood anatomical data, should improve our capacity to interpret the interactions of ultrasonic signals with wood. We present here some early results in our investigation into the effects of the various inhomogeneities on the velocity and attenuation of ultrasonic signals.