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SWEEPING PRECONDITIONERS FOR ELASTIC WAVE PROPAGATION WITH SPECTRAL ELEMENT METHODS
Elastic wave seismic wave time-harmonic frequency domain spectral elements parallel preconditioner iterative solver sparse-direct perfectly matched layers full waveform inversion
2015/7/14
We present a parallel preconditioning method for the iterative solution of the time-harmonicelastic wave equation which makes use of higher-order spectral elements to reduce pollution error. In partic...
We establish a decoupling result for the P and S waves of linear, isotropic elasticity, in the setting of twice-differentiable Lam´e parameters.
A new theoretical paradigm to describe hysteresis,discrete memory and nonlinear elastic wave propagation in rock
new theoretical paradigm hysteresis discrete memory nonlinear elastic wave propagation
2009/11/16
The velocity of sound in rock is a strong function of pressure, indicating that wave propagation in rocks is very nonlinear. The quasistatic elastic properties of rocks axe hysteretic, possessing disc...
Elastic wave velocities of Mg3Al2Si3O12-pyrope garnet to 10 Gpa
Mg3Al2Si3O12 10 Gpa Elastic waveve locities
2012/3/30
ElasticwavevelocitiesofMg Al Si O pyropegarnetweremeasuredto10GPaat
3 2 3 12
ambienttemperature,usingultrasonicinterferometryina1000tonsplit-cylinder,multi-
anvilapparatus(USCA-1000).Thesampleusedi...
Directional Variation of Elastic Wave Velocities in Oriented Clay
Directional Variation Elastic Wave Velocities Clay
2012/2/17
Sonic anisotropy of clay resulting from particle orientation was studied by means of velocity measurements on anisotropically consolidated kaolinite. Samples were prepared from a kaolin-water slurry u...