Physical constraints on the non-dimensional absorption coefficients of compressional and shear waves for viscoelastic cylinders
نویسندگان
چکیده
منابع مشابه
on the effect of linear & non-linear texts on students comprehension and recalling
چکیده ندارد.
15 صفحه اولA unifying fractional wave equation for compressional and shear waves.
This study has been motivated by the observed difference in the range of the power-law attenuation exponent for compressional and shear waves. Usually compressional attenuation increases with frequency to a power between 1 and 2, while shear wave attenuation often is described with powers less than 1. Another motivation is the apparent lack of partial differential equations with desirable prope...
متن کاملTheory of compressional and shear waves in fluidlike marine sediments
An unconsolidated, saturated marine sediment consists of a more or less loose assemblage of mineral grains in contact, with seawater in the interstices. It is postulated that the two-phase medium possesses no skeletal frame, implying that the elastic rigidity modulus of the material is zero. A theory of wave propagation in such a sediment is developed, in which the medium is treated as a fluid ...
متن کاملAVO attributes of compressional and converted shear waves
In this article we investigate AVO effects of large offset P-wave data (up to ) and converted waves (up to ). In addition to conventional P-wave AVO attributes ( and ) a third term ( ) is examined. For P to S converted waves we introduce two AVO attributes and . Background trends for certain cross plots are related to rock property relationships. These new attributes are used to discriminate co...
متن کاملSingle-sided Marchenko focusing of compressional and shear waves.
In time-reversal acoustics, waves recorded at the boundary of a strongly scattering medium are sent back into the medium to focus at the original source position. This requires that the medium can be accessed from all sides. We discuss a focusing method for media that can be accessed from one side only. We show how complex focusing functions, emitted from the top surface into the medium, cause ...
متن کاملذخیره 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: Ultrasonics
سال: 2017
ISSN: 0041-624X
DOI: 10.1016/j.ultras.2016.11.001