Force as parameter

[Anonymous]

Hi 

Now I'm fighting with a calculation of non-linear buckling and I have a problem with how to properly declare loads and how to parametrize one dimension.

Length and thickness are constant, but I have to optimize the width of it to achieve a safety factor equal to 1.5.  Loads here are distributed and are equal n=12N/mm so total stress would be equal =12*width/area.  And here comes my question is here an option to make a parametric optimization in Nastran? To make a function of which would describe my force?

Thanks in advance

[Anonymous · Accepted solution]

For parametric studies you have to write your own iLogic rules.

[John_Holtz · Accepted solution]

Hi @Anonymous 

You said the load is constant (12 N/mm) and the thickness is constant. Therefore, the load applied to the analysis is constant: pressure = (12 N/mm)/( t mm thickness) = 12/t N/mm^2. You do not need to use a parameter for the load.

[Anonymous]

You're right. Thanks, however, I will also learn Ilogic.