Results 11 to 20 of about 3,049 (178)

Reissner-Mindlin plate theory for elastodynamics

open access: yesJournal of Applied Mathematics, 2004
Existence and uniqueness of solution are proved for elastodynamics of Reissner-Mindlin plate model. Higher regularity is proved under the assumptions of smoother data and certain compatibility conditions. A mass scaling is introduced.
Shen Rong Wu
doaj   +2 more sources

Pohozhaev and Morawetz Identities in Elastostatics and Elastodynamics [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We construct identities of Pohozhaev type, in the context of elastostatics and elastodynamics, by using the Noetherian approach. As an application, a non-existence result for forced semi-linear isotropic and anisotropic elastic systems is established.
Yuri Bozhkov, Peter J. Olver
doaj   +2 more sources

Energy-momentum scheme for nonlinear thermo-electro-elastodynamics [PDF]

open access: yes, 2021
The present contribution aims at the consistent discretisation of nonlinear, coupled thermoelectro-elastodynamics. In that regard, a new one-step implicit and thermodynamically consistent energymomentum integration scheme for the simulation of thermo ...
Franke, Marlon   +5 more
core   +1 more source

Universal route for the emergence of exceptional points in PT-symmetric metamaterials with unfolding spectral symmetries

open access: yesNew Journal of Physics, 2021
We introduce a class of parity-time symmetric elastodynamic metamaterials (Ed-MetaMater) whose Hermitian counterpart exhibits unfolding (fractal) spectral symmetries.
Yanghao Fang   +2 more
doaj   +1 more source

The high-order smooth interpolated reproducing kernel particle method for elastodynamics problems

open access: yesBoundary Value Problems, 2022
Combining the interpolation reproducing kernel particle method (IRKPM) with the integral weak form of elastodynamics, we present a high-order smooth interpolated reproducing kernel particle method for an elastodynamics plane problem.
Jinpeng Gu, Yixiao Qin, Zhonghua Li
doaj   +1 more source

Justification of the Cauchy-Born approximation of elastodynamics [PDF]

open access: yes, 2013
We present sharp convergence results for the Cauchy-Born approximation of general classical atomistic interactions, for static problems with small data and for dynamic problems on a macroscopic time ...
Ortner, Christoph, Theil, Florian
core   +1 more source

Observation of Brillouin scattering in a high-index doped silica chip waveguide

open access: yesResults in Physics, 2023
We report the observation of Brillouin backscattering in a 50-cm long spiral high-index doped silica chip waveguide and measured a Brillouin frequency shift of 16 GHz which is in very good agreement with theoretical predictions and numerical simulations ...
M. Zerbib   +9 more
doaj   +1 more source

Ideal minimal residual-based proper generalized decomposition for non-symmetric multi-field models – Application to transient elastodynamics in space-time domain [PDF]

open access: yes, 2014
It is now well established that separated representations built with the help of proper generalized decomposition (PGD) can drastically reduce computational costs associated with solution of a wide variety of problems.
BOUCINHA, Lucas   +3 more
core   +1 more source

A Novel Expanding Mechanism of Gastrointestinal Microrobot: Design, Analysis and Optimization

open access: yesMicromachines, 2019
In order to make the gastrointestinal microrobot (GMR) expand and anchor in the gastrointestinal tract reliably, a novel expanding mechanism of the GMR is proposed in this paper.
Wei Wang   +6 more
doaj   +1 more source

Scattering fidelity in elastodynamics [PDF]

open access: yesPhysical Review E, 2006
The recent introduction of the concept of scattering fidelity, causes us to revisit the experiment by Lobkis and Weaver [Phys. Rev. Lett. 90, 254302 (2003)]. There, the ``distortion'' of the coda of an acoustic signal is measured under temperature changes. This quantity is in fact the negative logarithm of scattering fidelity.
Gorin, T., Seligman, T., Weaver, R.
openaire   +4 more sources

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