What is meant by Direct stress, Min and Maximum Combined stress?

- November 8, 2024 at 12:27 pm
  
  An_Engineering_Student
  Subscriber
  
  Hello,
  I was doing an analysis of my space frame chassis as a line body according to a tutorial on chassis analysis by Ansys (the tutorial link -
  &list=PLtt6-ZgUFmMIanrtJppFH9xa_qplbLDoI). I had extracted the line bodies from a solid chassis file and had connected all the gaps between the lines and was about to move further when under the solution tab in Model i noticed an option for inserting a beam tool which contains direct stress, maximum and minimum combined stress. What is exactly meant by these and are these different from von mises stress ?
  I also whould like to find the FOS (safety factor) of my design but i cant find an option for it under solution tab when analysing as line bodies. Is there any way to find the FOS (safety factor) in this situvation ?
- November 11, 2024 at 8:58 am
  
  mohan.urs
  Ansys Employee
  
  Hey,
  Check out these link to know more about the direct and combined stress.
  https://ansyshelp.ansys.com/public///////Views/Secured/corp/v242/en/wb_sim/ds_Beam_Tool.html
  And check out his link to add stress tool to evaluate FOS
  19.5.10. Stress Tools
  Regards,
  Mohan Urs