Zobrazeno 1 - 10
of 1 030
pro vyhledávání: '"Roubicek, A."'
Time discretization in visco-elastodynamics at large displacements and strains in the Eulerian frame
Autor:
Roubíček, Tomáš
The fully-implicit time discretization (i.e. the backward Euler formula) is applied to compressible nonlinear dynamical models of viscoelastic solids in the Eulerian description, i.e. in the actual deforming configuration. The Kelvin-Voigt rheology o
Externí odkaz:
http://arxiv.org/abs/2407.18799
Autor:
Roubíček, Tomáš
The thermodynamical model of viscoelastic deformable solids at finite strains with Kelvin-Voigt rheology with a higher-order viscosity (using the concept of multipolar materials) is formulated in a fully Eulerian way in rates. Assumptions used in thi
Externí odkaz:
http://arxiv.org/abs/2404.13188
Autor:
Mielke, Alexander, Roubíček, Tomáš
A thermodynamically consistent visco-elastodynamical model at finite strains is derived that also allows for inelasticity (like plasticity or creep), thermal coupling, and poroelasticity with diffusion. The theory is developed in the Eulerian framewo
Externí odkaz:
http://arxiv.org/abs/2404.10126
Autor:
Roubicek, Tomas, Stefanelli, Ulisse
We advance a thermodynamically consistent model of self-gravitational accretion and differentiation in planets. The system is modeled in actual variables as a compressible thermoviscoelastic fluid in a fixed, sufficiently large domain. The supply of
Externí odkaz:
http://arxiv.org/abs/2402.06750
Autor:
Roubíček, Tomáš
Various spatial-gradient extensions of standard viscoelastic rheologies of the Kelvin-Voigt, Maxwell's, and Jeffreys' types are analyzed in linear one-dimensional situations as far as the propagation of waves and their dispersion and attenuation. The
Externí odkaz:
http://arxiv.org/abs/2309.05089
Autor:
Roubíček, Tomáš
The thermodynamic model of visco-elastic deformable magnetic materials at finite strains is formulated in a fully Eulerian way in rates with the aim to describe thermoremanent paleomagnetism in crustal rocks. The Landau theory applied to a ferro-to-p
Externí odkaz:
http://arxiv.org/abs/2307.11826
We present a dynamic model for inhomogeneous viscoelastic media at finite strains. The model features a Kelvin-Voigt rheology, and includes a self-generated gravitational field in the actual evolving configuration. In particular, a fully Eulerian app
Externí odkaz:
http://arxiv.org/abs/2305.06232
Autor:
Roubíček, Tomáš, Tomassetti, Giuseppe
A standard elasto-plasto-dynamic model at finite strains based on the Lie-Liu-Kr\"oner multiplicative decomposition, formulated in rates, is here enhanced to cope with spatially inhomogeneous materials by using the reference (called also return) mapp
Externí odkaz:
http://arxiv.org/abs/2304.05918
Autor:
Roubíček, Tomáš
The thermodynamic model of visco-elastic deformable magnetic materials at finite strains is formulated in a fully Eulerian way in rates. The Landau theory applies for ferro-to-para-magnetic phase transition, the gradient theory (leading exchange ener
Externí odkaz:
http://arxiv.org/abs/2302.02850
Autor:
Mielke, Alexander, Roubíček, Tomáš
The Dieterich-Ruina rate-and-state friction model is transferred to a bulk variant and the state variable (aging) influencing the dissipation mechanism is here combined also with a damage influencing standardly the elastic response. As the aging has
Externí odkaz:
http://arxiv.org/abs/2207.11074