Scattering of elastic waves by small surface-breaking or subsurface cracks in three dimensions

Conference · Tue Jan 01 04:00:00 EST 1985

DOI:https://doi.org/10.1007/978-1-4615-7763-8_4· OSTI ID:5232941

Visscher, W M

The long-wavelength limit of elastic wave scattering by surface cracks in 3d is considered. It is shown that, if the crack is normal to the surface, the scattering can be described by two real parameters, one of which may be taken to be the crack size. The other therefore depends on shape, orientation, and burial depth. Many computed illustrations are given. It is concluded that the amount of information about cracks obtainable by low frequency elastic wave scattering is very limited.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5232941
• Report Number(s): LA-UR-85-2840; CONF-8506110-2; ON: DE85017564
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ACOUSTIC TESTING
CRACKS
ELASTIC SCATTERING
ELASTICITY
ELECTROMAGNETIC RADIATION
LONG WAVE RADIATION
MATERIALS TESTING
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
RADIATIONS
RADIOWAVE RADIATION
SCATTERING
TENSILE PROPERTIES
TESTING
THREE-DIMENSIONAL CALCULATIONS
WAVELENGTHS