10 Replies Latest reply on Jul 13, 2018 5:26 PM by Paul Millhouse

    Modelling Compression of a rubber block

    Christopher Hardy

      Hi,

       

      My names Chris, I am a beginner to SolidWorks simulation, my apologies if I use any incorrect terminology or assumptions.

      But can someone please help me with a current project I am working on.

       

      I am currently trying to model a rubber block being compressed by 2 metal plates (from top and bottom). I have attained raw stress-strain curve data from physical experimentation to

      represent the material's non-linear elastic behavior.

       

      So as of now, these are the things I have done to the model:

       

      1) Draw the physical rubber block

      2) Added forces of 1N @ the top and bottom of the rubber block, with a time dependancy using "Variation with Time" to represent the 2 blocks compressing the rubber. (force will be multiplied by the supplied time curve Y value)

      3) Changed the Study time properties to match real life experimentation time

      4) specified material properties with "Nonlinear Elastic", Poisson ratio 0.4995, Thermal Expansion 0.0002/K, Mass Density 358 kg/m^3, Tensile Strength 13789514 N/m^2

       

      The only thing left which I do not quiet understand is the constraints I need to place on the mode, Can someone please help me with this ?

      And please let me know if I left anything important out.

       

      Thanks for your help

       

      (Attached is the rubber block that needs to be compressed: Top/bottom face dimension = 150mm x 50mm)