honeycomb properties.

- August 25, 2019 at 12:17 pm
  
  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).
- August 26, 2019 at 7:39 pm
  
  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.
- August 26, 2019 at 8:57 pm
  
  peteroznewman
  Subscriber
  
  There is a similar discussion here.