Effective mechanical response of non-linear heterogeneous materials comprising bimodular phases

Elisabetta Monaldo; Stella Brach; Djimédo Kondo; Giuseppe Vairo

doi:10.1016/j.euromechsol.2020.103962

Effective mechanical response of non-linear heterogeneous materials comprising bimodular phases

Elisabetta Monaldo, Stella Brach, Djimédo Kondo, Giuseppe Vairo

Research output: Contribution to journal › Article › peer-review

Abstract

In this study, the effective constitutive behavior of heterogeneous materials comprising bimodular phases is investigated through a computational approach and by referring to Curnier-type bimodularity. Different microstructures characterized by spherical inclusions or voids are addressed, by analyzing different loading scenarios. Numerical results, obtained via an iterative finite-element scheme, highlight the influence of intraphase constitutive non-linearities induced by the tension/compression transition of the local material stiffness. Moreover, coupling effects between hydrostatic and deviatoric states are elucidated. The macroscale material response results dependent on the loading condition, and it is driven by perturbative effects of heterogeneous fields locally induced by pores or inclusions.

Original language	English
Article number	103962
Journal	European Journal of Mechanics, A/Solids
Volume	81
DOIs	https://doi.org/10.1016/j.euromechsol.2020.103962
Publication status	Published - 1 May 2020
Externally published	Yes

Keywords

Bimodular composites
Bimodular porous materials
Computational homogenization
Non-linear constitutive response

Access to Document

10.1016/j.euromechsol.2020.103962

Cite this

@article{e1a766c60938434b9d4a28a38a3a5b9d,

title = "Effective mechanical response of non-linear heterogeneous materials comprising bimodular phases",

abstract = "In this study, the effective constitutive behavior of heterogeneous materials comprising bimodular phases is investigated through a computational approach and by referring to Curnier-type bimodularity. Different microstructures characterized by spherical inclusions or voids are addressed, by analyzing different loading scenarios. Numerical results, obtained via an iterative finite-element scheme, highlight the influence of intraphase constitutive non-linearities induced by the tension/compression transition of the local material stiffness. Moreover, coupling effects between hydrostatic and deviatoric states are elucidated. The macroscale material response results dependent on the loading condition, and it is driven by perturbative effects of heterogeneous fields locally induced by pores or inclusions.",

keywords = "Bimodular composites, Bimodular porous materials, Computational homogenization, Non-linear constitutive response",

author = "Elisabetta Monaldo and Stella Brach and Djim{\'e}do Kondo and Giuseppe Vairo",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Masson SAS",

year = "2020",

month = may,

day = "1",

doi = "10.1016/j.euromechsol.2020.103962",

language = "English",

volume = "81",

journal = "European Journal of Mechanics, A/Solids",

issn = "0997-7538",

}

TY - JOUR

T1 - Effective mechanical response of non-linear heterogeneous materials comprising bimodular phases

AU - Monaldo, Elisabetta

AU - Brach, Stella

AU - Kondo, Djimédo

AU - Vairo, Giuseppe

PY - 2020/5/1

Y1 - 2020/5/1

N2 - In this study, the effective constitutive behavior of heterogeneous materials comprising bimodular phases is investigated through a computational approach and by referring to Curnier-type bimodularity. Different microstructures characterized by spherical inclusions or voids are addressed, by analyzing different loading scenarios. Numerical results, obtained via an iterative finite-element scheme, highlight the influence of intraphase constitutive non-linearities induced by the tension/compression transition of the local material stiffness. Moreover, coupling effects between hydrostatic and deviatoric states are elucidated. The macroscale material response results dependent on the loading condition, and it is driven by perturbative effects of heterogeneous fields locally induced by pores or inclusions.

AB - In this study, the effective constitutive behavior of heterogeneous materials comprising bimodular phases is investigated through a computational approach and by referring to Curnier-type bimodularity. Different microstructures characterized by spherical inclusions or voids are addressed, by analyzing different loading scenarios. Numerical results, obtained via an iterative finite-element scheme, highlight the influence of intraphase constitutive non-linearities induced by the tension/compression transition of the local material stiffness. Moreover, coupling effects between hydrostatic and deviatoric states are elucidated. The macroscale material response results dependent on the loading condition, and it is driven by perturbative effects of heterogeneous fields locally induced by pores or inclusions.

KW - Bimodular composites

KW - Bimodular porous materials

KW - Computational homogenization

KW - Non-linear constitutive response

UR - https://www.scopus.com/pages/publications/85079088511

U2 - 10.1016/j.euromechsol.2020.103962

DO - 10.1016/j.euromechsol.2020.103962

M3 - Article

AN - SCOPUS:85079088511

SN - 0997-7538

VL - 81

JO - European Journal of Mechanics, A/Solids

JF - European Journal of Mechanics, A/Solids

M1 - 103962

ER -

Effective mechanical response of non-linear heterogeneous materials comprising bimodular phases

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this