Wrinkling in engineering fabrics: a comparison between two different comprehensive modelling approaches

I. Giorgio (1, 2) , P. Harrison (3, 2) , F. Dell'Isola (1, 2) , J. Alsayednoor (3) , E. Turco (4, 2)

1 DISG - Dipartimento di Ingegneria Strutturale e Geotecnica
2 MEMOCS - International Research Center for the Mathematics & Mechanics of Complex Systems
3 School of Engineering, University of Glasgow, Glasgow, UK
4 UNISS - Università degli Studi di Sassari = University of Sassari [Sassari]

We consider two ‘comprehensive’ modelling approaches for engineering fabrics. We distinguish the two approaches using the terms ‘semi-discrete’ and ‘continuum’, reflecting their natures. We demonstrate a fitting procedure, used to identify the constitutive parameters of the continuum model from predictions of the semi-discrete model, the parameters of which are in turn fitted to experimental data. We, then, check the effectiveness of the continuum model by verifying the correspondence between semi-discrete and continuum model predictions using test cases not previously used in the identification process. Predictions of both modelling approaches are compared against full-field experimental kinematic data, obtained using stereoscopic digital image correlation techniques, and also with measured force data. Being a reduced order model and being implemented in an implicit rather than an explicit finite-element code, the continuum model requires significantly less computational power than the semi-discrete model and could therefore be used to more efficiently explore the mechanical response of engineering fabrics.

Domaines: Mécanique [physics]

I. Giorgio, P. Harrison, F. Dell'Isola, J. Alsayednoor, E. Turco. Wrinkling in engineering fabrics: a comparison between two different comprehensive modelling approaches. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018, 474 (2216), 20 p. ⟨hal-01912133⟩