Influences of Non-Locality on the Elastic Wave Surfaces in Elastic Media

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Elastic Gaussian Wave Packets in Isotropic Media

The theory of Gaussian wave packet (GWP) propagation in elastic materials is developed. The GWP solutions are in the form of localized disturbances with Gaussian spatial envelopes at any instant in time. The method is explicitly time dependent, but is conceptually no more difficult than time halmonic ray theory. The equations of propagation and evolution are very similar to those of standard, e...

متن کامل

Optimal wave focusing in elastic media

Time-reversal (TR) methods provide a simple and robust solution to source imaging problems. However, for recovering a well resolved image of the source, TR requires a balanced illumination of the target from all angles. When acquisition is incomplete and a balanced illumination is not possible, the TR solution may not be adequate. In a previous paper, by formulating source imaging as an optimiz...

متن کامل

Non-periodic Homogenization of the Elastic Wave Equation for Wave Propagations in Complex Media

When considering numerical acoustic or elastic wave propagation in media containing small heterogeneities with respect to the minimum wavelength of the wavefield, being able to upscale physical properties (or homogenize them) is valuable, for mainly two reasons: first, replacing the original discontinuous and very heterogeneous media by a smooth and more simple one, is a judicious alternative t...

متن کامل

Elastic wave mode separation for TTI media

The separation of wave modes for isotropic elastic wavefields is typically done using Helmholtz decomposition. However, Helmholtz decomposition using conventional divergence and curl operators is not satisfactory for anisotropic media and leaves the different wave modes only partially separated. The separation of anisotropic wavefields requires more sophisticated operators which depend on local...

متن کامل

Elastic wave-mode separation for VTI media

Elastic wave propagation in anisotropic media is well represented by elastic wave equations. Modeling based on elastic wave equations characterizes both kinematics and dynamics correctly. However, because P and S modes are both propagated using elastic wave equations, there is a need to separate P and S modes to obtain clean elastic images. The separation of wave modes to P and S from isotropic...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Review of Advances in Physics Theories and Applications

سال: 2020

ISSN: 2412-3714,2409-3769

DOI: 10.18488/journal.75/2020.31.1.24