Learning Forum

[Emperor]

Hello to all, 

If I have a displacement to apply in two steps for example:  

First step 0.2mm ;

Second step : 0.9mm ; 

[peteroznewman]

Displacements are absolute, not incremental. A step 2 displacement of 0.9 mm puts the node at 0.9 mm independent of what was used in step 1.
If you want ANSYS to apply 0.9 mm more in step 2 than the value used in step 1 then just add 0.9 to the value of step 1 and use that for step 2. In your example, that would be 1.1 mm.

[Emperor]

thanks for the answer. I would like to know if using several steps (not substeps) to apply the displacement helps convergence?

[peteroznewman]

It makes no difference. Each converged step or substep is the same. It is just a place to start and try the next load increment.

[Emperor]

thank you for the answers.