Aerodynamic pressure and structrual stresses

[C3PO]

Maybe you are the right man to ask. I know the GSNDO calculates the heat of the reentry.
What about Aerodynamic forces?

Is there way to calculate the stress on a craft as it accelerates in the atmosphere? I'm not looking
at very accurate figures, just an aproximation.

Let's say we choose a max speed of 200km/s@20km(8.2kPa). What speed will give the same
stress at 10km or 40km?

Jógvan

[SCE TO AUX]

Can GSNDO burn up your spaceship if you reenter incorrectly?  Where can I get it?