A variational multiscale immersed meshfree method for heterogeneous materials
نویسندگان
چکیده
منابع مشابه
A dynamic lattice model for heterogeneous materials
In this paper, the mechanical behavior of three-phase inhomogeneous materials is modeled using the meso-scale model with lattice beams for static and dynamic analyses. The Timoshenko beam theory is applied instead of the classical Euler-Bernoulli beam theory and the mechanical properties of lattice beam connection are derived based on the continuum medium using the non-local continuum theory. T...
متن کاملA stochastic variational multiscale method for diffusion in heterogeneous random media
A stochastic variational multiscale method with explicit subgrid modeling is provided for solution of stochastic elliptic equations that arise while modeling diffusion in heterogeneous random media [1]. The exact solution of the governing equations is split into two components: a coarse-scale solution and a subgrid solution. A localized computational model for the subgrid solution is derived. T...
متن کاملThe Local Variational Multiscale Method ?
Combining the variational multiscale (VMS) method for large-eddy simulation with a discontinuous Galerkin (DG) spatial discretization leads to a synergistic approach to turbulence simulation that we call the local variational multiscale (`VMS) method. In `VMS the flexibility of DG enables the large and small-scale spaces to be set on each element independently. In this paper, preliminary result...
متن کاملAnalysis of Multiscale Phenomena in Heterogeneous Materials
A new variational methodology is developed for computing optimal bounds on the stress inside thermoelastic composites. The method also provides tight bounds on the strength domains for random two-phase elastic-plastic composites. A second effort develops a global local finite element method for problems with multiple length scales such as functionally graded thermal barrier coatings. The method...
متن کاملA finite element variational multiscale method for incompressible flow
In this article, we present a finite element variational multiscale (VMS) method for incompressible flows based on two local Gauss integrations, and compare it with common VMS method which is defined by a low order finite element space Lh on the same grid as Xh for the velocity deformation tensor and a stabilization parameter a. The best algorithmic feature of our method is using two local Gaus...
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: Computational Mechanics
سال: 2021
ISSN: 0178-7675,1432-0924
DOI: 10.1007/s00466-020-01968-1