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Transverse isotropy in magnetoactive elastomers

Journal of Magnetism and Magnetic Materials, 2021
Magnetoactive elastomers (MAEs) are field-controllable materials with magnetically switchable properties. The presence of an external magnetic field results in the change in the macroscopic shape of the MAE.
Sanket Chougale   +2 more
semanticscholar   +2 more sources

Unexpected Consequences of Transverse Isotropy

Bulletin of the Seismological Society of America, 2018
In a series of papers, Kawakatsu et al. (2015) and Kawakatsu (2016a, b, 2017) introduced and discussed a new parameter, ηκ, that characterizes the incidence angle dependence (relative to the symmetry axis) of seismic body wave velocities in a transverse ...
H. Kawakatsu
semanticscholar   +2 more sources

Anisotropy rather than transverse isotropy in Longmaxi shale and the potential role of tectonic stress

Engineering Geology, 2018
In the last few decades, the recovery of and exploration for shale gas has increased. This has led to increased interest in the mechanical characterization of shale formations as relates to enhancing the conductivity of such formations.
Junhui Chen   +5 more
semanticscholar   +3 more sources

Wave modeling in viscoacoustic media with transverse isotropy

GEOPHYSICS, 2019
We have developed a derivation of a system of equations for acoustic waves in a medium with transverse isotropy (TI) in velocity and attenuation. The equations are derived from Cauchy’s equation of motion, and the constitutive law is Hooke’s generalized ...
Nuno V. da Silva, G. Yao, M. Warner
semanticscholar   +2 more sources

ANISOTROPY AND TRANSVERSE ISOTROPY

Geophysical Prospecting, 1986
ABSTRACTA number of authors in the exploration literature have written about anisotropy, but have restricted their discussions to wave propagation through rock having transverse isotropy with a vertical symmetry axis. This note shows that there are fundamental differences between transverse isotropy when the symmetry axis is vertical (normal to the ...
S. Crampin
semanticscholar   +2 more sources

The Transverse Isotropy of Spinal Cord White Matter Under Dynamic Load.

Journal of Biomechanical Engineering, 2016
The rostral-caudally aligned fiber-reinforced structure of spinal cord white matter (WM) gives rise to transverse isotropy in the material. Stress and strain patterns generated in the spinal cord parenchyma following spinal cord injury (SCI) are multidirectional and dependent on the mechanism of the injury.
S. Jannesar   +2 more
semanticscholar   +3 more sources

Reflection moveout and parameter estimation for horizontal transverse isotropy

GEOPHYSICS, 1997
Transverse isotropy with a horizontal axis of symmetry (HTI) is the simplest azimuthally anisotropic model used to describe fractured reservoirs that contain parallel vertical cracks. Here, I present an exact equation for normal‐moveout (NMO) velocities from horizontal reflectors valid for pure modes in HTI media with any strength of anisotropy.
I. Tsvankin
semanticscholar   +2 more sources

Estimating the anisotropy of the vertical transverse isotropy coal seam by rock physics model–based inversion

Geophysical Prospecting, 2023
Coal seams exhibiting nearly horizontal bedding, and fractures can be characterized as transversely isotropic media with a vertical axis of symmetry, known as vertical transverse isotropy coal seams.
Haibo Wu   +5 more
semanticscholar   +1 more source

Viscoelastic wave propagation for nearly constant Q transverse isotropy

Geophysical Prospecting, 2022
Constant Q, also called frequency‐independent Q, is a phenomenological assumption often used in practice for dissipative wave propagation in both forward and inverse seismic modelling.
Q. Hao   +3 more
semanticscholar   +1 more source

A generalized strain energy function using fractional powers: Application to isotropy, transverse isotropy, orthotropy, and residual stress symmetry

, 2021
In this paper, we propose a generalized strain energy density function based on invariants of stretch tensor with arbitrary exponents. We employ polynomial, logarithmic and exponential functions of these invariants to develop the strain energy functions.
S. Mukherjee, A. K. Mandal
semanticscholar   +1 more source

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