Mechanical experimental characterisation and numerical modelling of an unfilled silicone rubber

Development of novel synthetic muscle tissues for sports impact surrogates

“…The mechanical response phenomena experienced are in contrast to results from a study by Meunier et al (2008), where little hysteresis, stress-softening and strain rate dependency were observed. This could be attributed to the lack of filler content in the silicones, which has been suggested to be a strain amplifier (Rault et al, 2006;Podnos et al, 2006;Mullins & Tobin, 1965).…”

“…The Ogden and Mooney-Rivlin models provided the closest material fits through both simulants and the range of strain rates conducted. The quality of the constitutive model fits are generally in contrast with the findings from Meunier et al (2008) and Shergold et al (2006), who observed a weak Mooney-Rivlin fit, though the decreased strain hardening effect was noted when compared to the Ogden model. However, the variability present between hyperelastic fits and the difference of error in each does reiterate the need for caution when interpreting the results from FE models.…”

“…The model proposes the strain energy function (W) is based on the principal stretches (λ 1 , λ 2 , λ 3 ), with μ describing the shear behaviour and α describing the strain hardening (Equation 3). The Mooney-Rivlin model (Rivlin, 1948) is another commonly used material model to describe rubber-like behaviour due to its simplicity and ability to model moderate deformations and high strain hardening (Shergold et al, 2006;Meunier et al, 2008). It is a first order polynomial model represented by Equation (4) where C10 is a material parameter and C00 = 0.…”

Numerical Simulation and Experimental Validation of the Inflation Test of Latex Balloons

“…Therefore, much effort has gone into describing the behavior of materials like silicone, latex, rubber (Treloar, 1974 Arruda and Boyce, 1993;Meunier et al, 2008), or biological tissues (García-Herrera et al, 2011 and; Eilaghi et al, 1984) with the aim of quantifying their ability to undergo very large deformations that can be recovered when the specimen is downloaded without loss of its original abilities (Ogden, 1984).…”

“…As an example, silicone behavior is obtained from tensile, compression, shear and inflation test in Meunier et al (2008) using image correlation techniques while Skouras et al (2012) reports on a characterization using the Hart-Smith model via the inflation test. Rubber-like materials are analyzed by Gonzáles et al (2009) by fitting the Mooney-Rivlin model with experimental biaxial tests.…”