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A finite deformation electro-mechanically coupled computational multiscale formulation for electrical conductors

Kaiser, T. and Menzel, A. LU (2021) In Acta Mechanica 232(10). p.3939-3956
Abstract

Motivated by the influence of deformation-induced microcracks on the effective electrical properties at the macroscale, an electro-mechanically coupled computational multiscale formulation for electrical conductors is proposed. The formulation accounts for finite deformation processes and is a direct extension of the fundamental theoretical developments presented by Kaiser and Menzel (Arch Appl Mech 91:1509–1526, 2021) who assume a geometrically linearised setting. More specifically speaking, averaging theorems for the electric field quantities are proposed and boundary conditions that a priori fulfil the extended Hill–Mandel condition of the electro-mechanically coupled problem are discussed. A study of representative boundary value... (More)

Motivated by the influence of deformation-induced microcracks on the effective electrical properties at the macroscale, an electro-mechanically coupled computational multiscale formulation for electrical conductors is proposed. The formulation accounts for finite deformation processes and is a direct extension of the fundamental theoretical developments presented by Kaiser and Menzel (Arch Appl Mech 91:1509–1526, 2021) who assume a geometrically linearised setting. More specifically speaking, averaging theorems for the electric field quantities are proposed and boundary conditions that a priori fulfil the extended Hill–Mandel condition of the electro-mechanically coupled problem are discussed. A study of representative boundary value problems in two- and three-dimensional settings eventually shows the applicability of the proposed formulation and reveals the severe influence of microscale deformation processes on the effective electrical properties at the macroscale.

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author
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organization
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type
Contribution to journal
publication status
published
subject
in
Acta Mechanica
volume
232
issue
10
pages
18 pages
publisher
Springer
external identifiers
  • scopus:85111858717
ISSN
0001-5970
DOI
10.1007/s00707-021-03005-5
language
English
LU publication?
yes
id
7e812c8f-4290-4163-bad6-0d9b8dd41914
date added to LUP
2021-12-15 15:27:38
date last changed
2022-04-27 06:44:14
@article{7e812c8f-4290-4163-bad6-0d9b8dd41914,
  abstract     = {{<p>Motivated by the influence of deformation-induced microcracks on the effective electrical properties at the macroscale, an electro-mechanically coupled computational multiscale formulation for electrical conductors is proposed. The formulation accounts for finite deformation processes and is a direct extension of the fundamental theoretical developments presented by Kaiser and Menzel (Arch Appl Mech 91:1509–1526, 2021) who assume a geometrically linearised setting. More specifically speaking, averaging theorems for the electric field quantities are proposed and boundary conditions that a priori fulfil the extended Hill–Mandel condition of the electro-mechanically coupled problem are discussed. A study of representative boundary value problems in two- and three-dimensional settings eventually shows the applicability of the proposed formulation and reveals the severe influence of microscale deformation processes on the effective electrical properties at the macroscale.</p>}},
  author       = {{Kaiser, T. and Menzel, A.}},
  issn         = {{0001-5970}},
  language     = {{eng}},
  number       = {{10}},
  pages        = {{3939--3956}},
  publisher    = {{Springer}},
  series       = {{Acta Mechanica}},
  title        = {{A finite deformation electro-mechanically coupled computational multiscale formulation for electrical conductors}},
  url          = {{http://dx.doi.org/10.1007/s00707-021-03005-5}},
  doi          = {{10.1007/s00707-021-03005-5}},
  volume       = {{232}},
  year         = {{2021}},
}