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相关论文: Separately Global Solutions to Rate-Independent Pr…

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We start with the compressible Oldroyd--B model derived in \cite{Barrett-Lu-Suli} ({\em J. W. Barrett, Y. Lu, E. S\"uli. Existence of large-data finite-energy global weak solutions to a compressible Oldroyd--B model. Comm. Math. Sci. 15…

偏微分方程分析 · 数学 2019-10-22 Yong Lu , Milan Pokorný

In this paper we analyze a new temperature-dependent model for adhesive contact that encompasses nonlocal adhesive forces and damage effects, as well as nonlocal heat flux contributions on the contact surface. The related PDE system…

偏微分方程分析 · 数学 2021-04-13 Giovanna Bonfanti , Michele Colturato , Riccarda Rossi

Tangent stabilised large strain isotropic elasticity was recently proposed by Poya et al. [1] wherein by working directly with principal stretches the entire eigenstructure of constitutive and geometric/initial stiffness terms were found in…

计算物理 · 物理学 2024-09-30 Roman Poya , Rogelio Ortigosa , Antonio J. Gil , Theodore Kim , Javier Bonet

This paper is concerned with an approximation scheme for rate-independent systems governed by a non-smooth dissipation and a possibly non-convex energy functional. The scheme is based on the local minimization scheme introduced in [EM06],…

数值分析 · 数学 2021-05-03 Michael Sievers

In this paper we prove existence of global in time weak solutions for a highly nonlinear PDE system arising in the context of damage phenomena in thermoviscoelastic materials. The main novelty of the present contribution with respect to the…

偏微分方程分析 · 数学 2016-01-20 Christian Heinemann , Elisabetta Rocca

Extreme events are ubiquitous in a wide range of dynamical systems, including turbulent fluid flows, nonlinear waves, large scale networks and biological systems. Here, we propose a variational framework for probing conditions that trigger…

流体动力学 · 物理学 2018-07-10 Mohammad Farazmand , Themistoklis P. Sapsis

A general nonlinear theory for the elasticity of pre-stressed single crystals is presented. Various types of elastic moduli are defined, their importance is determined, and relationships between them are presented. In particular, B moduli…

材料科学 · 物理学 2022-01-05 Valery I. Levitas

A rate-independent model coupling small strain associative elasto-plasticity and damage is studied via a 'vanishing-viscosity' analysis with respect to all the variables describing the system. This extends the analysis performed for the…

偏微分方程分析 · 数学 2019-10-10 Vito Crismale , Riccarda Rossi

In this paper we derive a new model for visco-elasticity with large deformations where the independent variables are the stretch and the rotation tensors which intervene with second gradients terms accounting for physical properties in the…

偏微分方程分析 · 数学 2024-10-21 Abramo Agosti , Pierluigi Colli , Michel Frémond

This work rigorously implements a recent model of large-strain elasto-plastic evolution in single crystals where the plastic flow is driven by the movement of discrete dislocation lines. The model is geometrically and elastically nonlinear,…

偏微分方程分析 · 数学 2024-02-27 Filip Rindler

This paper is concerned with a priori error estimates for the local incremental minimization scheme, which is an implicit time discretization method for the approximation of rate-independent systems with non-convex energies. We first show…

数值分析 · 数学 2021-05-03 Christian Meyer , Michael Sievers

We propose a variational formulation for the nonequilibrium thermodynamics of discrete open systems, i.e., discrete systems which can exchange mass and heat with the exterior. Our approach is based on a general variational formulation for…

数学物理 · 物理学 2018-12-05 François Gay-Balmaz , Hiroaki Yoshimura

Devised towards geophysical applications for various processes in the lithosphere or the crust, a model of poro-elastodynamics with inelastic strains and other internal variables like damage (aging) and porosity as well as with diffusion of…

偏微分方程分析 · 数学 2021-09-01 Tomáš Roubíček , Giuseppe Tomassetti

In this paper, we consider the wave equation with variable coefficients and boundary damping and supercritical source terms. The goal of this work is devoted to prove the local and global existence, and classify decay rate of energy…

偏微分方程分析 · 数学 2024-03-07 Tae Gab Ha

We present a model for rate-independent, unidirectional, partial damage in visco-elastic materials with inertia and thermal effects. The damage process is modeled by means of an internal variable, governed by a rate-independent flow rule.…

偏微分方程分析 · 数学 2018-08-29 Giuliano Lazzaroni , Riccarda Rossi , Marita Thomas , Rodica Toader

In this paper, we prove the global existence of strong solutions for the inhomogeneous incompressible viscoelastic system without any additional structure assumptions on $\mathbb{R}^{3}$. Unlike the time weighted energy method presented by…

偏微分方程分析 · 数学 2026-03-03 Chengfei Ai , Mengxing Bei , Yong Wang

We prove that there exists a~large-data and global-in-time weak solution to a~system of partial differential equations describing an unsteady flow of an incompressible heat-conducting rate-type viscoelastic stress-diffusive fluid filling up…

偏微分方程分析 · 数学 2025-04-18 Michal Bathory , Miroslav Bulíček , Josef Málek

In this paper we consider a singular nonlocal viscoelastic problem with a nonlinear source term and a possible damping term. We proved that if the initial data enter into the stable set, the solution exists globally and decays to zero with…

偏微分方程分析 · 数学 2013-03-19 Wenjun Liu , Yun Sun , Gang Li

In this work, Bayesian inversion with global-local forwards models is used to identify the parameters based on hydraulic fractures in porous media. It is well-known that using Bayesian inversion to identify material parameters is…

数值分析 · 数学 2023-04-11 Nima Noii , Thomas Wick , Amirreza Khodadadian

A new relaxation approach is proposed which allows for the description of stress- and strain-softening at finite strains. The model is based on the construction of a convex hull replacing the originally non-convex incremental stress…

计算工程、金融与科学 · 计算机科学 2023-02-08 Maximilian Köhler , Daniel Balzani