A posteriori error estimation for numerical model reduction in computational homogenization of porous media
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6504
Abstract: Numerical model reduction is adopted for solving the microscale problem that arizes from computational homogenization of a model problem of porous media with displacement and pressure as unknown fields. A reduced basis is obtained for… read more here.
Keywords: computational homogenization; model; model reduction; porous media ... See more keywords
Computational homogenization of higher‐order continua
Sign Up to like & getrecommendations! Published in 2022 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6948
Abstract: We introduce a novel computational framework for the multiscale simulation of higher-order continua that allows for the consideration of first-, secondand thirdorder effects at both microand macro-level. In line with classical two-scale approaches, we describe… read more here.
Keywords: homogenization higher; order continua; higher order; multiscale ... See more keywords
A data-driven computational homogenization method based on neural networks for the nonlinear anisotropic electrical response of graphene/polymer nanocomposites
Sign Up to like & getrecommendations! Published in 2018 at "Computational Mechanics"
DOI: 10.1007/s00466-018-1643-0
Abstract: In this paper, a data-driven-based computational homogenization method based on neural networks is proposed to describe the nonlinear electric conduction in random graphene-polymer nanocomposites. In the proposed technique, the nonlinear effective electric constitutive law is… read more here.
Keywords: homogenization method; method based; computational homogenization; graphene ... See more keywords
On polarization-based schemes for the FFT-based computational homogenization of inelastic materials
Sign Up to like & getrecommendations! Published in 2019 at "Computational Mechanics"
DOI: 10.1007/s00466-019-01694-3
Abstract: We revisit the polarization-based schemes introduced to FFT-based computational homogenization by Eyre–Milton, Michel–Moulinec–Suquet and Monchiet–Bonnet. When applied to nonlinear problems, these polarization-based methods suffer from two handicaps. Firstly, the optimal choice of algorithmic parameters is… read more here.
Keywords: based computational; computational homogenization; based schemes; polarization based ... See more keywords
Multiscale Computational Homogenization: Review and Proposal of a New Enhanced-First-Order Method
Sign Up to like & getrecommendations! Published in 2018 at "Archives of Computational Methods in Engineering"
DOI: 10.1007/s11831-016-9205-0
Abstract: The continuous increase of computational capacity has encouraged the extensive use of multiscale techniques to simulate the material behaviour on several fields of knowledge. In solid mechanics, the multiscale approaches which consider the macro-scale deformation… read more here.
Keywords: macro scale; order; computational homogenization; first order ... See more keywords
Computational homogenization of carbon/polymer composites with stochastic interface defects
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2017.04.076
Abstract: Abstract This study concerns numerical determination of the basic statistics of the effective elasticity tensor for the polymer reinforced composite with the Carbon Black (CB) particles and including some interface defects. This is achieved by… read more here.
Keywords: interface defects; carbon; computational homogenization; polymer ... See more keywords
On the computational homogenization of three-dimensional fibrous materials
Sign Up to like & getrecommendations! Published in 2020 at "Composite Structures"
DOI: 10.1016/j.compstruct.2020.112151
Abstract: Abstract Fibrous materials such as paper, nonwovens, textiles, nanocellulose based-biomaterials, polymer networks and composites are widely used versatile engineering materials. Deformations at the fiber network scale have direct role in their effective mechanical behavior. However,… read more here.
Keywords: fibrous materials; computational homogenization; scale; fiber network ... See more keywords
Modeling and computational homogenization of chloride diffusion in three-phase meso-scale concrete
Sign Up to like & getrecommendations! Published in 2021 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.121558
Abstract: Abstract A computational homogenization technique for modeling diffusion in concrete is introduced with emphasis on the influence of the aggregate content and variability. The highly heterogeneous material is investigated on different scales by combining Variationally… read more here.
Keywords: particle size; diffusion; size distribution; computational homogenization ... See more keywords
Micromorphic computational homogenization for mechanical metamaterials with patterning fluctuation fields
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2018.08.019
Abstract: Abstract This paper presents a homogenization framework for elastomeric metamaterials exhibiting long-range correlated fluctuation fields. Based on full-scale numerical simulations on a class of such materials, an ansatz is proposed that allows to decompose the… read more here.
Keywords: fluctuation fields; computational homogenization; fluctuation; long range ... See more keywords