Ogden material models are used to show anomalies in LS-DYNA

- March 16, 2024 at 6:44 am
  
  云川王
  Subscriber
  
  Hello everyone, I got the stress-strain curve of uniaxial compression test of a foam, and used it to build its Ogden material model in the engineering database, as shown in the figure. I used the fitting function of ANSYS to get the parameters of the material formula. When I used it for Droptest emulation, the solver gave me an error and I couldn't figure out why. In addition, I found a rubber 1 material in the engineering database, but it can normally participate in calculation. I couldn't find the reason for my calculation failure. I hope you can help me if you are in the same situation as me, thank you
- March 19, 2024 at 1:14 pm
  
  Ram Gopisetti
  Ansys Employee
  
  Hi,
  When you see such error, the way to debug is to look into the mes* files or maybe d3hsp, Here, if you can post the solution information at last or post the error you are facing you might get better help from us or from community.
  Cheers, Ram.