Frequency dependant elastic modulus and solving for eigenfrequencies

- March 12, 2024 at 2:46 pm
  
  v.w.s.vantroost
  Subscriber
  
  hello reader.
  For my master project i am working with a material which changes the young modulus depending on the frequencie. i was wondering how this can be included within ansys apdl the material is shown here
  
  i had hoped to use the following bit of code
  tb,elastic,1
  TBFIELD,FREQ,0
  tbdata,1,2950e6
  TBFIELD,FREQ,70
  tbdata,2,4000e9
  to solve for the eigenfrequencies of the model but it seems like only the first value is used. i'm using the following code to solve for the different eigenfrequencies. is this possible?
  /solu
  antype,2
  modopt,lanb,30,0,,
  mxpand,30,,,yes
  outres,all,all
  solve
- March 12, 2024 at 3:30 pm
  
  Erik Kostson
  Ansys Employee
  
  Hi
  With frequency dependency you can only use full harmonic analysis.
  
  4.4. Full Harmonic Analysis (ansys.com)
  See here how to open the above link:
  /forum/forums/topic/how-to-access-the-ansys-online-help/
  All the best
  Erik