A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials

A new multiscale finite element formulation is presented for nonlinear dynamic analysis of heterogeneous structures. The proposed multiscale approach utilizes the hysteretic finite element method to model the microstructure. Using the proposed computational scheme, the micro-basis functions, that ar...

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Main Authors: Triantafyllou, Savvas P., Chatzi, E.N.
Format: Article
Published: Springer Verlag 2014
Online Access:https://eprints.nottingham.ac.uk/34602/
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author Triantafyllou, Savvas P.
Chatzi, E.N.
author_facet Triantafyllou, Savvas P.
Chatzi, E.N.
author_sort Triantafyllou, Savvas P.
building Nottingham Research Data Repository
collection Online Access
description A new multiscale finite element formulation is presented for nonlinear dynamic analysis of heterogeneous structures. The proposed multiscale approach utilizes the hysteretic finite element method to model the microstructure. Using the proposed computational scheme, the micro-basis functions, that are used to map the micro-displacement components to the coarse mesh, are only evaluated once and remain constant throughout the analysis procedure. This is accomplished by treating inelasticity at the micro-elemental level through properly defined hysteretic evolution equations. Two types of imposed boundary conditions are considered for the derivation of the multiscale basis functions, namely the linear and periodic boundary conditions. The validity of the proposed formulation as well as its computational efficiency are verified through illustrative numerical experiments.
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spelling nottingham-346022020-05-04T16:51:48Z https://eprints.nottingham.ac.uk/34602/ A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials Triantafyllou, Savvas P. Chatzi, E.N. A new multiscale finite element formulation is presented for nonlinear dynamic analysis of heterogeneous structures. The proposed multiscale approach utilizes the hysteretic finite element method to model the microstructure. Using the proposed computational scheme, the micro-basis functions, that are used to map the micro-displacement components to the coarse mesh, are only evaluated once and remain constant throughout the analysis procedure. This is accomplished by treating inelasticity at the micro-elemental level through properly defined hysteretic evolution equations. Two types of imposed boundary conditions are considered for the derivation of the multiscale basis functions, namely the linear and periodic boundary conditions. The validity of the proposed formulation as well as its computational efficiency are verified through illustrative numerical experiments. Springer Verlag 2014-09-01 Article PeerReviewed Triantafyllou, Savvas P. and Chatzi, E.N. (2014) A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials. Computational Mechanics, 54 (3). pp. 763-787. ISSN 0178-7675 http://link.springer.com/article/10.1007%2Fs00466-014-1032-2 doi:10.1007/s00466-014-1032-2 doi:10.1007/s00466-014-1032-2
spellingShingle Triantafyllou, Savvas P.
Chatzi, E.N.
A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title_full A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title_fullStr A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title_full_unstemmed A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title_short A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
title_sort hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials
url https://eprints.nottingham.ac.uk/34602/
https://eprints.nottingham.ac.uk/34602/
https://eprints.nottingham.ac.uk/34602/