Mechanical experimental characterisation and numerical modelling of an unfilled silicone rubber

By Luc Meunier, Gregory Chagnon, D. Favier, Laurent Orgéas, Pierre Vacher. 2008

253 citations recorded by the source corpus.

In this paper, the mechanical behaviour of an unfilled silicone rubber is analysed. Firstly, silicone samples were subjected to five homogeneous tests: tensile, pure shear, compression, plane strain compression and bulge tests. During the tests, full-field measurements of the strain on the surface of deformed samples were obtained using a Digital Image Correlation technique. Results show that the Mullins effects and hysteresis, as well as strain rate sensitivity, can be considered as negligible. Results also emphasise the influence of the loading path. Then, five well-known hyperelastic models (neo-hookean, Mooney, Gent, Haines and Wilson and Ogden models) were fitted to the experimental data. Finally, a heterogeneous test was realised by stretching a silicone plate sample containing holes. Finite element simulations of this experiment have been performed with the hyperelastic models. The comparison of experimental and numerical results emphasises the importance of the choice of the hyperelastic modelling in the simulation of strain fields.

Subfields: Biomedical Engineering, Computer Vision and Pattern Recognition, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/11d0c98183ba3eb13ad9f26363af05bbf5ca6bc4

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In Biomedical Engineering

In Computer Vision and Pattern Recognition

Oscar Lopez-Pamies

In Mechanical Engineering

Citations in the corpus

A new I1-based hyperelastic model for rubber elastic materials (2010, methodology): “(2008) [13] for: (a) uniaxial compression and tension, (b) biaxial tension, (c) pure shear compression, and (d) pure shear tension of a silicone rubber.”
Toward a Common Framework and Database of Materials for Soft Robotics (2020, unknown): “47 Characterizing and comparing hyperelastic materials is particularly challenging due to the effect of hysteresis, the Mullins effect, stress-softening, or strain rate sensitivity, which can be difﬁcult to separate from each other.”
A review of constitutive models for rubber-like materials (2010, background): “…are various forms of strain energy potentials for modeling of incompressible and isotropic elastomer (Ogden, 1972; Mars and Fatemi, 2004; Guo and Sluys, 2006; Selvadurai, 2006; Horgan and Saccomandi, 1999; 2003; Amin et al., 2002; Beatty, 2003; Meunier et al., 2008; Muhr 2005; Sasso et al., 2008).”
A state-of-the-art review on magnetorheological elastomer devices (2014, background): “Since then, research on MR elastomers has progressed to a new level in which significant amounts of activity have been reported, including material empirical modeling [18, 31–40], material development and property testing [2, 3, 10–12, 14, 15, 18, 21, 41–60], new device design and characterization [”
A highly adjustable magnetorheological elastomer base isolator for applications of real-time adaptive control (2013, background): “At the extreme temperatures, the tensile strength, elongation, tear strength and compression set can be far superior to conventional rubbers although still low relative to other materials [37].”
Influence of the temperature on the mechanical behaviour of filled and unfilled silicone rubbers (2013, methodology): “This procedurewas previously used for the unfilled [4] and filled [5,6] silicone rubbers for studying their mechanical properties at room temperature.”