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Volume 33 Issue 5
Sep 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(5): 054101.
GUO Lingmei, WANG Yang, XU Weifang. Experimental Investigation and Modeling of Strain-Rate Dependence on Tensile Behavior of Silicone Rubbers[J]. Chinese Journal of High Pressure Physics, 2019, 33(5): 054101. doi: 10.11858/gywlxb.20180664
Citation: GUO Lingmei, WANG Yang, XU Weifang. Experimental Investigation and Modeling of Strain-Rate Dependence on Tensile Behavior of Silicone Rubbers[J]. Chinese Journal of High Pressure Physics, 2019, 33(5): 054101. doi: 10.11858/gywlxb.20180664
shu

Experimental Investigation and Modeling of Strain-Rate Dependence on Tensile Behavior of Silicone Rubbers

doi: 10.11858/gywlxb.20180664
  • 1.

    Institute of Systems Engineering, CAEP, Mianyang 621999, China

  • 2.

    Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang 621999, China

  • 3.

    School of Engineering Science, University of Science and Technology of China, Hefei 230026, China

  • Received Date: 18 Oct 2018
  • Rev Recd Date: 03 Jun 2019
  • Publish Date: 25 Jul 2019
    Abstract
  • To investigate the impact tensile response of silicone rubber subjected to different strain rates, quasi-static uniaxial tension tests at the strain rate of 0.001 s–1, moderate strain-rate tensile tests at the strain rate of 15 s–1 and high strain-rate tensile tests at the strain rates of 350 and 1400 s–1 were performed. Experimental results show that the tensile behavior of the filled silicone rubber exhibits apparent nonlinear elastic characteristic and strain-rate sensitivity. A phenomenological visco-hyperelastic constitutive model was proposed based on the obtained responses. The model is composed of a hyper-elastic spring and a Maxwell element with rate-dependent relaxation time, corresponding to hyper-elasticity and viscoelasticity respectively. The model results have good agreement with the experimental data, indicating that the model has the ability to describe the nonlinear and rate-dependent tension behavior of the filled silicone rubber.

     

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