post processing topology optimization results in Hyperview

mohajerb@uwindsor.ca
mohajerb@uwindsor.ca Altair Community Member
edited October 2020 in Community Q&A

After performing topology optimization, I don't know the stress contour and displacement contour for the optimized structure ( Last iteration) are for which iso value specifically?

Because by changing the iso value the structure modifies, however the stress and displacement contour for the last iteration stay unchanged.

In Hyper view there are two sub cases one is design and the other is static analysis. In design sub case we can see all iterations of optimization with respect user defined iso value.

In static sub case which my question is about. The static analysis results (displacement and von misses stress) are only available for two iteration (zero iteration and last iteration).

I was wondering this plotted displacement and Von Misses stress contour for the last iteration is with respect to what iso value number.  

Normally for any specified iso value for specific iteration we should have unique stress and displacement contour because by specifying any iso value we are weakening or strengthening the structure.

But here in Hyper view for the last iteration there is only one displacement and stress contour and it is not clear for which iso value are these contours!

I did attach two pictures from first and last iterations respectively

First iteration

<?xml version="1.0" encoding="UTF-8"?>post-31785-0-53708100-1427850275_thumb.p

Last iteration

<?xml version="1.0" encoding="UTF-8"?>post-31785-0-22510600-1427850407_thumb.p

optimized structure (last iteration Iso value=0.5)

<?xml version="1.0" encoding="UTF-8"?>post-31785-0-61135500-1427850627_thumb.p

Optimized structure (last iteration, Iso value 0.2)

<?xml version="1.0" encoding="UTF-8"?>post-31785-0-43726900-1427850764_thumb.p

 

I want to know the displacement contour (second picture) is for structure with iso value of 0.2 or 0.5 or any other values

 

Thank you in advance

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2015

    Hi,

     

    The result you see in the last iteration is based on the optimization responses.

     

    for instance, if you have given a constraint on volume fraction of 0.3 and objective on increasing stiffness.. the result you see is for the same.

     

    If you want to see the result for a particular iso value, you might have to re-analysis with a particular iso value (threshold value) using OSSmooth.

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