Learning Forum

[sid10mahesh]

I understand that we won't directly get the stress values on a bolt modelled as a beam element. But I have noticed that if we probe the beam location we get maximum values of forces over time on the beam. My question is from that value of forces is there any way we can hand calculate the approximate stress on the bolt? Can any one tell me the formulation if possible ?

Can some one help me with this regard? Any help in this will be greatly appreciated. Thanks in advance!

@peteroznewman @raul.raghav @ekostson

[peteroznewman]

See if you find the equations on this page helpful: https://www.engineeringtoolbox.com/bolt-stretching-d_1164.html

[sid10mahesh]

The equations in the link that you shared consists of only the effect due to axial load I guess. But I do have an effect on my bolt due to combined loading.
Is it equivalent to applying the prescribed loads as given by the beam probe individually on the bolt and then determining the stresses ? Is that a valid method ? Or is there any simpler method ?

[peteroznewman]

Read the discussion in the link below. Pay no attention to my post marked "Best Answer". It is not the best answer. You will find a long reply that describes the workflow to design a bolted joint.
Here is another useful discussion with videos of how to create a bolted joint simulation.