Formation and propagation of Love waves in a surface layer with a P-wave source. Technical report

Technical Report · Sun Apr 01 04:00:00 EDT 1990

OSTI ID:6419068

Florence, A L; Miller, S A

The objective of this research is to investigate experimentally, and support with theoretical calculations, the formation and propagation of Love waves from a P-wave source due to scattering at material heterogeneities. The P-wave source is a spherical piezoelectric crystal cast in a surface layer of rock simulant overlaying a higher impedance granite substrate. Excitation of the piezoelectric crystal with a known voltage applies a spherical compressional pulse of known amplitude to the surrounding medium. Lateral heterogeneities cast in the surface layer convert incident P-wave energy into shear waves. The horizontally polarized shear waves (SH waves) trapped in the surface layer wave guide are the Love waves we will measure at the surface.

• Research Organization: SRI International, Menlo Park, CA (USA)
• OSTI ID: 6419068
• Report Number(s): AD-A-225559/4/XAB; SCIENTIFIC--2; CNN: F19628-88-K-0051
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450300* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosion Detection
CRYSTALS
DETECTION
DOCUMENT TYPES
ELECTRICITY
EXPLOSIONS
LAYERS
MECHANICAL PROPERTIES
NUCLEAR EXPLOSION DETECTION
NUCLEAR EXPLOSIONS
ORIENTATION
PERFORMANCE TESTING
PIEZOELECTRICITY
POLARIZATION
PROGRESS REPORT
RESEARCH PROGRAMS
SCATTERING
SEISMIC DETECTION
SEISMIC WAVES
SHEAR PROPERTIES
SIMULATION
SURFACES
TESTING
WAVE PROPAGATION
WAVEGUIDES