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Analytical and finite element modelling of the elastic–plastic behaviour of metallic strands under axial–torsional loads

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journal contribution
posted on 28.07.2017, 13:49 by Francesco Foti, Alessandro de Luca di Roseto
In this work a new formulation for modelling the elastic–plastic behaviour of metallic strands subjected to axial–torsional loads is presented. Simple and accurate cross sectional constitutive equations a rederived, fully accounting for the evolution of plastic deformations in the wires, starting from a description of the internal structure of the strand. The proposed approach is suitable both for straightforward analytical calculations as well as for implementation into finite elements for the large-scale structural analyses of cable structures. A full three-dimensional(3D) finite element(FE) model, based on a parametric description of the strand internal geometry, is also developed. The results of both the FE model and the analytical formulation are validated with reference to a well-documented physical testing campaign and a well-established linearly elastic literature model. Additional analyses are then performed to carefully assess the validity of the proposed mechanical formulation, for a wide range of strand construction parameters, by means of systematic comparisons against the results of the 3DFE modeland of a recent linearly elastic literature model.

History

School

  • Architecture, Building and Civil Engineering

Published in

International Journal of Mechanical Sciences

Citation

FOTI, F. and DE LUCA DI ROSETO, A., 2016. Analytical and finite element modelling of the elastic–plastic behaviour of metallic strands under axial–torsional loads. International Journal of Mechanical Sciences, 115-6, pp. 202-214.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

21/06/2016

Publication date

2016-06-22

Notes

This paper was accepted for publication in the journal International Journal of Mechanical Sciences and the definitive published version is available at https://doi.org/10.1016/j.ijmecsci.2016.06.016

ISSN

0020-7403

Language

en