Neo Hookean Constants

- June 5, 2020 at 4:17 am
  
  Vahidebrahimi
  Subscriber
  
  Hi Everyone,
  
  I have a hyperelastic biological model that based on literature, Neo-Hookean is the most suitable material.
  
  Although, I have C10 and K values for Neo Hookean model from literature, when attempting to define the material in Ansys the inputs are "Initial Shear modulus" and "Incompressibliity Parameter D1 ".
  
  How can I find "Initial Shear modulus" and "Incompressibliity Parameter D1 " using C10 and K available? And is D1=2/K (where K is the bulk modulus?)
  
  I also have Stress-Strain Experimental data (uniaxial) for the curve fitting if needed.
  
  Thanks in advance for your advice
  
  Regards
- June 6, 2020 at 3:36 am
  
  peteroznewman
  Subscriber
  
  Yes, D1=2/K