Explicit Dynamics – Analysis setting

- January 30, 2019 at 9:19 am
  
  BalajiSiva
  Subscriber
  
  Hi Friends,
  
  I am doing an Explicit Dynamic Analysis on Ansys. It is a Kind of forming. The upper tool has to compress the carbon fiber and the lower too is fixed. I like to simulate, where the compression in carbon fiber starts. The displacement of the upper tool is 12mm. I have done the Simulation, but I didn't get the values as expected. I have few doubts. I have attached the Image below.
  
  Input Settings:
  
  Upper and lower tool - Structural steel, rigid (Contact : frictionless)
  
  Lower tool - Fixed Support
  
  Upper tool - force : 0.1 N, Displacement : 12mm, velocity : 100mm/s
  
  With calculation I mentioned end time as 0.12s.
  
  Is this correct for the Simulation? also is it possible to know the final compressed carbon fiber cross-section?.
- January 30, 2019 at 10:39 am
  
  jj77
  Subscriber
  
  The upper tool BC.
  
  Do you have a force and disp. and velocity?
  
  If that is the case you need to choose one.
  
  The easiest if possible is to use an increasing displacement only, and then look at the reactions to get the force.
- January 30, 2019 at 2:50 pm
  
  BalajiSiva
  Subscriber
  
  Thank you. I have tried with the displacement values. I was using the carbon fiber from the library (Carbon fiber 395 GPa). It consists of properties of the fiber only. But unfortunately, the carbon fiber part is exploding. Since it is not a brittle material, I don't know why. Do you have any suggestion on this.
- January 30, 2019 at 3:29 pm
  
  jj77
  Subscriber
  
  Not sure exactly what is happening there, but if you archive it, and attach your model (button next to your post), we can have a look and see if we can figure out what is happening.