Results don't look correct

Hi, 

 

I've been running optistruct analysis on a cad model and the results that I am getting don't look correct. 

 

I've tried many different ways of fixing this, such as changing the mesh or applying the force acting upon it in a different way but the results are still coming back with hardly any material left on the part.

 

I have attached two files showing what I input into optistruct and the other showing the result I get back from optistruct in it's final iteration.

 

I'm not sure about what I have input wrong, could someone please help me?

 

Thanks, 

Alasdair.

 

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>