General Mechanical

General Mechanical

honeycomb properties.

    • Prashank
      Subscriber

      I am making a sandwich panel composites with kevlar honeycomb at its core.


      The datasheets provided by the manufacture is this:-



      here  shear modulus is given in  2 directions and shear strength of material.


      To completely define the material in ansys library under the orthotropic elasticity i need following values:-


      here i have shear modulus in XY & YZ direction. Anyone knows how to find out the remaining values?


      (i have emailed my query to the manufacturer).

    • Sandeep Medikonda
      Ansys Employee

      I believe a honeycomb structure will be a transversely isotropic material and not an orthotropic one. This one assumption will reduce the no. of Engineering constants from 9 to 5 (E1, E2, G12, nu12, nu23)


      So, G12 = G13, E2 = E3 and nu_12 = nu_13


      Also, nu_12/E1 = nu_21/E2


      So, what is your longitudinal, transverse moduli and the poission's ratio? If you know those, you can calculate the rest using the above specificed relations.

    • peteroznewman
      Subscriber

      There is a similar discussion here.

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