{"id":{"repo_id":"nps","oai_identifier":"oai:calhoun.nps.edu:10945/16036"},"canonical_url":"https://search.dev.ndltd.org/etd/nps/oai:calhoun.nps.edu:10945/16036","repository":{"repo_id":"nps","name":"Naval Postgraduate School","base_url":"https://calhoun.nps.edu/server/oai/request"},"display":{"title":"Compressional wave speed and absorption measurements in a saturated kaolinite-water artificial sediment.","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Martinek, Charles Allen"],"institution":"Monterey, California. Naval Postgraduate School","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Oceanography","school":null,"contributors":[],"advisors":["Andrews, Robert S.","Wilson, O.B. Jr."],"committee_chairs":[],"committee_members":[],"year":1972,"date_issued":"1972-03","date_published":"1972-03","updated_at":"2026-07-27T20:26:16Z","subjects":[],"languages":["en_US"],"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."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10945/16036","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Andrews, Robert S.","Wilson, O.B. 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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."]},{"key":"dc:title","label":"Title","values":["Compressional wave speed and absorption measurements in a saturated kaolinite-water artificial sediment."]}]}],"canonical_facts":{"dc:contributor.advisor":["Andrews, Robert S.","Wilson, O.B. Jr."],"dc:contributor.department":["Oceanography"],"dc:creator":["Martinek, Charles Allen"],"dc:date":["March 1972"],"dc:date.accessioned":["2012-11-13T23:42:17Z"],"dc:date.available":["2012-11-13T23:42:17Z"],"dc:date.issued":["1972-03"],"dc:description.abstract":["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."],"dc:identifier.uri":["https://hdl.handle.net/10945/16036"],"dc:language.iso":["en_US"],"dc:publisher":["Monterey, California. Naval Postgraduate School"],"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."],"dc:title":["Compressional wave speed and absorption measurements in a saturated kaolinite-water artificial sediment."],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:26:16Z"}