How do I stable this model in static simulation?

I try to simulate this using static simulation but it say unstable. How can I fix this? My goal is to find FOS for this model around 1 to 4 at 400 newton. Materials is cast alloy

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2 Answers

This analysis is done in Ansys 18.1 Software.

Boundary condition
Four leg fixed
Load act on top face

Material Data
Teak wood for all component

Result file is attached in this post.

 
Comments 1

1. If it was same merge it as single part
2. Atleast one fixed positions are required may be you are not giving these things
It will be enough for static simulation

 
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