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Pretwisted beams in axial tension and torsion: analogy with dipolar gradient elasticity and applications to textile materials

Pretwisted beams in axial tension and torsion: analogy with dipolar gradient elasticity and applications to textile materials

Kordolemis, A., Aravas, N. and Giannakopoulos, A. E. (2015) Pretwisted beams in axial tension and torsion: analogy with dipolar gradient elasticity and applications to textile materials. Journal of Engineering Mechanics, 141 (10). ISSN 0733-9399 (Print), 1943-7889 (Online) (doi:https://doi.org/10.1061/(ASCE)EM.1943-7889.0000917)

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Abstract

A technical theory for pretwisted beams that accounts for variable twist (constrained warping) is based on an approximate displacement field that is defined completely in terms of two unknown functions: the axial displacement w1(z) and the rotation ϕ(z) of the cross section about the centroidal axis of the beam, z being the coordinate along the axis of the beam. The primary unknowns are determined by minimizing the potential energy of the beam. The problem is then formulated in terms of w1(z), and an analogue between the technical theory and a one-dimensional dipolar gradient elasticity model is presented. The application of the theory to textile materials is discussed.

Item Type: Article
Uncontrolled Keywords: coupled tension-torsion, dipolar gradient elasticity, textile yarns
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Engineering (ENN)
Last Modified: 19 Sep 2020 00:20
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: REF 1
URI: http://gala.gre.ac.uk/id/eprint/27195

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