Further investigation of the scattering of underwater sound from a porous solid sphere
Pace, Martin E.
Baker, Steven R.
MetadataShow full item record
This investigation is an attempt to verify the results of a theoretical model, developed by Kargl and Lim, for the scattering of sound from a poro-elastic sphere embedded in a poro-elastic host. It is a follow-on to that conducted by LT. Theodore W. L. Muskey. Both monostatic and bistatic measurements were taken on two porous glass spheres composed of 100 and 500 micrometer glass beads and on an aluminum sphere. The Poisson's Ratio was calculated from the shear and Young's moduli measured from a cylindrical sample composed of 300 micrometers glass beads. This was used to calculate the bulk moduli for the porous spheres; the shear moduli had been previously measured by LT. Muskey. These and other material properties were used as input to the theoretical model developed by Kargl and Lim. The experimental data were compared to the theoretical values. Reasonably good agreement between the measured and predicted scattering was obtained for the aluminum and 100 micrometers spheres. The measured scattering from the 500 micrometers sphere was in poor agreement with the theoretical predictions.
Showing items related by title, author, creator and subject.
Ryzhikov, V.; Grinyov, B.; Piven, L.; Onyshchenko, G.; Sidletskiy, O.; Naydenov, S.; Pochet, T.; Smith, C. (IEEE, 2015-07-01);It is known that solid-state scintillators can be used for detection of both gamma radiation and neutron flux. In the past, neutron detection efficiencies of such solid-state scintillators did not exceed 5-7%. At the same ...
Huskey, Theodore W. L. (Monterey, California. Naval Postgraduate School, 1993-09);An experiment was performed to measure the scattering of underwater sound from a porous solid for the first time. Two porous solid spheres somposed of heat-epoxied glass beads of 100 and 500 micron mean bead diameter were ...
McIntyre, Eddie L. (Monterey, California: Naval Postgraduate School, 1990-12);An evaluation of the shielded stripline was conducted using an X-band waveguide to isolate a suspended strip transmission line. The analysis was conducted below the functional cutoff frequency of the X-band guide over a ...