A quantitative assessment of the scale separation limits of classical and higher-order asymptotic homogenization

M. Mohammed Ameen, R.H.J. Peerlings, M.G.D. Geers

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
81 Downloads (Pure)

Abstract

Classical homogenization techniques are known to be effective for materials with large scale separation between the size and spacing of their underlying heterogeneities on the one hand and the structural problem dimensions on the other. For low scale separation, however, they generally become inaccurate. This paper assesses the scale separation limit of classical asymptotic homogenization applied to periodic linear elastic composite materials and demonstrates the effectiveness of higher-order homogenization in stretching this limit. A quantitative assessment is performed on a two-dimensional elastic two-phase composite consisting of stiff circular particles in a softer matrix material and subjected to anti-plane shear, as introduced by Smyshlyaev and Cherednichecko (J. Mech. Phys. Solids 48:1325–1358, 2000). Reference solutions are created rigorously using full-scale numerical simulations in which a family of translated microstructures is considered and the ensemble average of their solutions is defined as the homogenized solution. This solution is used as a reference, which is compared with the periodic homogenization solution for a range of scale ratios. It is shown that the zeroth-order classical homogenization solution significantly deviates from the exact solution below a certain scale ratio for a given microstructure. Below this limit, the higher-order solutions provide a clear improvement of the match. Further, the performance of classical and higher-order asymptotic homogenization solution are evaluated for varying stiffness contrast ratio between the two phases of the microstructure and error contours are presented by comparison with full-scale numerical simulations.

Original languageEnglish
Pages (from-to)89-100
Number of pages12
JournalEuropean Journal of Mechanics. A, Solids
Volume71
DOIs
Publication statusPublished - 1 Sep 2018

Fingerprint

homogenizing
scale (ratio)
microstructure
Microstructure
matrix materials
composite materials
Computer simulation
Composite materials
Stretching
stiffness
simulation
Stiffness
spacing
shear

Keywords

  • Higher-order asymptotic homogenization
  • Homogenization
  • Multiscale problems
  • Scale separation

Cite this

@article{458458e0cf3f4064b1832e23c6ef5df9,
title = "A quantitative assessment of the scale separation limits of classical and higher-order asymptotic homogenization",
abstract = "Classical homogenization techniques are known to be effective for materials with large scale separation between the size and spacing of their underlying heterogeneities on the one hand and the structural problem dimensions on the other. For low scale separation, however, they generally become inaccurate. This paper assesses the scale separation limit of classical asymptotic homogenization applied to periodic linear elastic composite materials and demonstrates the effectiveness of higher-order homogenization in stretching this limit. A quantitative assessment is performed on a two-dimensional elastic two-phase composite consisting of stiff circular particles in a softer matrix material and subjected to anti-plane shear, as introduced by Smyshlyaev and Cherednichecko (J. Mech. Phys. Solids 48:1325–1358, 2000). Reference solutions are created rigorously using full-scale numerical simulations in which a family of translated microstructures is considered and the ensemble average of their solutions is defined as the homogenized solution. This solution is used as a reference, which is compared with the periodic homogenization solution for a range of scale ratios. It is shown that the zeroth-order classical homogenization solution significantly deviates from the exact solution below a certain scale ratio for a given microstructure. Below this limit, the higher-order solutions provide a clear improvement of the match. Further, the performance of classical and higher-order asymptotic homogenization solution are evaluated for varying stiffness contrast ratio between the two phases of the microstructure and error contours are presented by comparison with full-scale numerical simulations.",
keywords = "Higher-order asymptotic homogenization, Homogenization, Multiscale problems, Scale separation",
author = "{Mohammed Ameen}, M. and R.H.J. Peerlings and M.G.D. Geers",
year = "2018",
month = "9",
day = "1",
doi = "10.1016/j.euromechsol.2018.02.011",
language = "English",
volume = "71",
pages = "89--100",
journal = "European Journal of Mechanics. A, Solids",
issn = "0997-7538",
publisher = "Elsevier",

}

A quantitative assessment of the scale separation limits of classical and higher-order asymptotic homogenization. / Mohammed Ameen, M.; Peerlings, R.H.J.; Geers, M.G.D.

In: European Journal of Mechanics. A, Solids, Vol. 71, 01.09.2018, p. 89-100.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - A quantitative assessment of the scale separation limits of classical and higher-order asymptotic homogenization

AU - Mohammed Ameen, M.

AU - Peerlings, R.H.J.

AU - Geers, M.G.D.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Classical homogenization techniques are known to be effective for materials with large scale separation between the size and spacing of their underlying heterogeneities on the one hand and the structural problem dimensions on the other. For low scale separation, however, they generally become inaccurate. This paper assesses the scale separation limit of classical asymptotic homogenization applied to periodic linear elastic composite materials and demonstrates the effectiveness of higher-order homogenization in stretching this limit. A quantitative assessment is performed on a two-dimensional elastic two-phase composite consisting of stiff circular particles in a softer matrix material and subjected to anti-plane shear, as introduced by Smyshlyaev and Cherednichecko (J. Mech. Phys. Solids 48:1325–1358, 2000). Reference solutions are created rigorously using full-scale numerical simulations in which a family of translated microstructures is considered and the ensemble average of their solutions is defined as the homogenized solution. This solution is used as a reference, which is compared with the periodic homogenization solution for a range of scale ratios. It is shown that the zeroth-order classical homogenization solution significantly deviates from the exact solution below a certain scale ratio for a given microstructure. Below this limit, the higher-order solutions provide a clear improvement of the match. Further, the performance of classical and higher-order asymptotic homogenization solution are evaluated for varying stiffness contrast ratio between the two phases of the microstructure and error contours are presented by comparison with full-scale numerical simulations.

AB - Classical homogenization techniques are known to be effective for materials with large scale separation between the size and spacing of their underlying heterogeneities on the one hand and the structural problem dimensions on the other. For low scale separation, however, they generally become inaccurate. This paper assesses the scale separation limit of classical asymptotic homogenization applied to periodic linear elastic composite materials and demonstrates the effectiveness of higher-order homogenization in stretching this limit. A quantitative assessment is performed on a two-dimensional elastic two-phase composite consisting of stiff circular particles in a softer matrix material and subjected to anti-plane shear, as introduced by Smyshlyaev and Cherednichecko (J. Mech. Phys. Solids 48:1325–1358, 2000). Reference solutions are created rigorously using full-scale numerical simulations in which a family of translated microstructures is considered and the ensemble average of their solutions is defined as the homogenized solution. This solution is used as a reference, which is compared with the periodic homogenization solution for a range of scale ratios. It is shown that the zeroth-order classical homogenization solution significantly deviates from the exact solution below a certain scale ratio for a given microstructure. Below this limit, the higher-order solutions provide a clear improvement of the match. Further, the performance of classical and higher-order asymptotic homogenization solution are evaluated for varying stiffness contrast ratio between the two phases of the microstructure and error contours are presented by comparison with full-scale numerical simulations.

KW - Higher-order asymptotic homogenization

KW - Homogenization

KW - Multiscale problems

KW - Scale separation

UR - http://www.scopus.com/inward/record.url?scp=85044109356&partnerID=8YFLogxK

U2 - 10.1016/j.euromechsol.2018.02.011

DO - 10.1016/j.euromechsol.2018.02.011

M3 - Article

AN - SCOPUS:85044109356

VL - 71

SP - 89

EP - 100

JO - European Journal of Mechanics. A, Solids

JF - European Journal of Mechanics. A, Solids

SN - 0997-7538

ER -