Advanced

Micromechanical modeling of smart composites considering debonding of reinforcements

Shabana, Yasser M. and Ristinmaa, Matti LU (2011) In International Journal of Solids and Structures 48(22-23). p.3209-3216
Abstract
Using the information of the microstructure, this paper presents the development of an incremental constitutive law governing the response of an electro-magneto-thermo-mechanical smart composite. In this development, different shapes of reinforcements that have magneto-electro-thermo-elastic properties that differ from the matrix material are considered. Shapes such as ellipsoidal (spherical, prolate and oblate) particles, elliptical and circular cylindrical fibers, disk and ribbon can be treated provided that the corresponding Eshelby tensor is used. The debonding of the reinforcements from the matrix is also a part of the microscopic process considered. The developed incremental constitutive law not only predicts the macroscopic and... (More)
Using the information of the microstructure, this paper presents the development of an incremental constitutive law governing the response of an electro-magneto-thermo-mechanical smart composite. In this development, different shapes of reinforcements that have magneto-electro-thermo-elastic properties that differ from the matrix material are considered. Shapes such as ellipsoidal (spherical, prolate and oblate) particles, elliptical and circular cylindrical fibers, disk and ribbon can be treated provided that the corresponding Eshelby tensor is used. The debonding of the reinforcements from the matrix is also a part of the microscopic process considered. The developed incremental constitutive law not only predicts the macroscopic and microscopic electro-magneto-thermo-mechanical-elastic behavior of composites while considering the debonding process, but it also characterizes their different macroscopic effective properties such as permittivity, permeability, stiffness moduli, pyroelectricity, pyromagnitivity and thermal expansion coefficient in different directions. Moreover, the developed constitutive law is applicable to porous materials and composites with multiple reinforcements and porosities. In the two examples considered below, particular attention is devoted to assessing the effects of both the shape and the concentration of the inclusion and/or porosity and the damage evolution on the multiphysical microscopic and macroscopic behaviors and the effective properties. The first example sheds light on obtaining the macroscopic effective properties, taking into account the piezoelectric BaTiO3 continuous fibers embedded in the piezomagnetic CoFe2O4 matrix. While in the second example, mechanical loading is considered, epoxy is taken as the matrix material and the response of the composite is presented while the evolution of damage in terms of debonding is taking place. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Micromechanical modeling, Smart composites, Debonding damage, Porosity, Macroscopic and microscopic behaviors, Electro-magneto-thermo-mechanical properties
in
International Journal of Solids and Structures
volume
48
issue
22-23
pages
3209 - 3216
publisher
Elsevier
external identifiers
  • wos:000295756500006
  • scopus:80052438266
ISSN
0020-7683
DOI
10.1016/j.ijsolstr.2011.07.011
language
English
LU publication?
yes
id
9f543cff-64fa-4e50-862a-31ca340fbddb (old id 2204103)
date added to LUP
2011-11-14 10:15:03
date last changed
2017-01-01 05:27:38
@article{9f543cff-64fa-4e50-862a-31ca340fbddb,
  abstract     = {Using the information of the microstructure, this paper presents the development of an incremental constitutive law governing the response of an electro-magneto-thermo-mechanical smart composite. In this development, different shapes of reinforcements that have magneto-electro-thermo-elastic properties that differ from the matrix material are considered. Shapes such as ellipsoidal (spherical, prolate and oblate) particles, elliptical and circular cylindrical fibers, disk and ribbon can be treated provided that the corresponding Eshelby tensor is used. The debonding of the reinforcements from the matrix is also a part of the microscopic process considered. The developed incremental constitutive law not only predicts the macroscopic and microscopic electro-magneto-thermo-mechanical-elastic behavior of composites while considering the debonding process, but it also characterizes their different macroscopic effective properties such as permittivity, permeability, stiffness moduli, pyroelectricity, pyromagnitivity and thermal expansion coefficient in different directions. Moreover, the developed constitutive law is applicable to porous materials and composites with multiple reinforcements and porosities. In the two examples considered below, particular attention is devoted to assessing the effects of both the shape and the concentration of the inclusion and/or porosity and the damage evolution on the multiphysical microscopic and macroscopic behaviors and the effective properties. The first example sheds light on obtaining the macroscopic effective properties, taking into account the piezoelectric BaTiO3 continuous fibers embedded in the piezomagnetic CoFe2O4 matrix. While in the second example, mechanical loading is considered, epoxy is taken as the matrix material and the response of the composite is presented while the evolution of damage in terms of debonding is taking place.},
  author       = {Shabana, Yasser M. and Ristinmaa, Matti},
  issn         = {0020-7683},
  keyword      = {Micromechanical modeling,Smart composites,Debonding damage,Porosity,Macroscopic and microscopic behaviors,Electro-magneto-thermo-mechanical properties},
  language     = {eng},
  number       = {22-23},
  pages        = {3209--3216},
  publisher    = {Elsevier},
  series       = {International Journal of Solids and Structures},
  title        = {Micromechanical modeling of smart composites considering debonding of reinforcements},
  url          = {http://dx.doi.org/10.1016/j.ijsolstr.2011.07.011},
  volume       = {48},
  year         = {2011},
}