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  1. Bonias

    Tensile testing simulation of PTFE (teflon) - material model

    IceBreakerSours I thought about using hyperelastic model, but the most essential feature in my simulation is plastic deformation. As far as I know Ansys do not allow to combine hyperelastic model with plasticity. But thank you for the link. This paper seems to be very valuable!
  2. Bonias

    Tensile testing simulation of PTFE (teflon) - material model

    Thanks Petr for your answer. I didn't know that Ansys expects true stress-strain and extrapolates the curve. Of course I use nlgeom,on and my displacement is applied in 100 steps (the analysis is transient so every step is divided into subsetps, the number of steps is rather random) I read...
  3. Bonias

    Tensile testing simulation of PTFE (teflon) - material model

    Hi, I have to perform a simulation of tensile testing of PTFE(teflon). I've been given the data about the experiment (I have the stress-strain curve, Poisson's ratio, sample dimensions, strain rate). The problem is that this material is very ductile and the percent strain is equal to 246%. I...

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