
Open access
Date
2019-11Type
- Journal Article
Abstract
The paper contributes a new fully nonlinear planar finite element formulation, taking into accouint large deformations as well as material nonlinearity, for helical structures where helical constancy can be exploited. the helical structures may consist of one or several helices that may be free or embedded in some matrix material. While diverse homogeneous deformation modes could be considered, the present paper focuses on axial elongation and axial torsion, being the dominant ones. The derivations are explained and the model predictions are verified by comparison with those of three-dimensional finite element models using commercial software. Suggested applications of the numerically efficient model include analysis of highly hierarchical helical structures found in tendons. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000362914Publication status
publishedExternal links
Journal / series
Computers & StructuresVolume
Pages / Article No.
Publisher
ElsevierSubject
Helical structures; Nonlinear continuum mechanics; Finite-element method; Planar model; Homogeneous deformationsOrganisational unit
03605 - Mazza, Edoardo / Mazza, Edoardo
03507 - Ermanni, Paolo / Ermanni, Paolo
Funding
159583 - New Multiscale Modeling Techniques for Hierarchical Helical Structures in Tendons (SNF)
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