We are trying to use topology optimization to design a truss designed boomilever.
The objective is minimizing the compliance. We are using a volume fraction of 0.2. The testing load condition is attached in below. (see Load Condition PNG)
We were using tetra mesh to optimize it. However, the output result was a nonregular shape design which does not make sense. (see attached file in below)
Ideally, we want to see an optimizing result close to what a normal truss bridge looks like.
We are wondering how to convert the results into a truss design, and how to smooth the result.
And also how do we observe the stress condition in iso graphs?
Thanks so much!