I was using the Abaqus to simulate the compression failure behavior of an Interpenetrating Network composite structure consisting of Aluminum and Syntactic foam.
I am trying to input the Hardening curve for the [B]CRUSHABLE FOAM model[/B]
as true stress = engineering stress(1+engineering strain)
Plastic Strain = true strain -(true stress /E)
but my model doesnt run for more than 2% strian . I[B]t gives an error Message saying : Solution Appears to be diverging Convergence is judged Unlikely
Too many Attempts made for this Increment.[/B]
Can you please let me know if I am inputing the hardening data in the right way or are there other problems with simulation as I have 2 different materials
Thank you in Advance for your help,