Compressional wave speed and absorption measurements in a saturated kaolinite-water artificial sediment.

The absorption coefficient for compressional waves in a water-saturated kaolinite clay was measured in the frequency range 100 to 150 kHz using a pulse technique with spherically diverging waves. The measurement also permitted determination of the sound speed, V . For one condition of the clay with a 77% porosity, the sound speed was 1422 m/sec. The absorption coefficient, a, was found to be frequency dependent, satisfying the empirical relationship a = 0.033 f dB/m, f being the frequency in kHz. No dispersion of wave speed with frequency was observed. These results were used together with the results of dynamic shear (rigidity) modulus measurements made with a torsional wave viscoelastometer to calculate the complex Lame constants of a viscoelastic model.

Department dc:contributor.department

Oceanography

Grantor dc:publisher

Monterey, California. Naval Postgraduate School

Year dc:date.issued

1972

Author dc:creator

• Martinek, Charles Allen

Advisors dc:contributor.advisor

• Andrews, Robert S.
• Wilson, O.B. Jr.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Language dc:language.iso

en_US

Handle dc:identifier.uri

https://hdl.handle.net/10945/16036

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/16036