Superplastic Forming (SPF) analysis with Abaqus

phamhuytuan's picture

Hello world!

I’ve been working with SPF analysis
recently. I followed the Abaqus example to solve my problem. But the result for
my pressure cycle isn’t as expected. It should have increased step by step from
the initial stage as in the real process. If it is possible, I will thank any
suggestions from whom related to this kind of simulation.

SPF Manual.pdf706.3 KB



I did SPF analyses using Marc with and without user subroutines. In an SPF
analysis, the pressure needs to be adjusted to maintain a targeted strain rate.
So, pressure may not be going up monotonously. The code would adjust from one
increment to next to maintain the desired strain rate. Not sure if this is the
issue you are having.