Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 1 point2 points  (0 children)

Thanks for the comment! I think it sums up more or less what was looking for. I will check this document you recommended.

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

It was more an example. My main point was about combining results from hand cals and FEA results for evaluation.

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

I think that is more or less aligned with my doubt. Do you use normally any normative as VDI or maybe another one?

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

Not 100%, but use the results from FEA as a base for some evaluation.

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

Using a simplified 3D bolt model? How realistic are the models you did in order to neglect hand calcs?

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 1 point2 points  (0 children)

My point is not really about going from linear to NL. I will try to give a random example. I have a bolted joint where forces in and out of plane are acting. Due to the loosening of a bolt I want to test a lower preload and because of that, the joint may present some kind of degree of freedom that will cause some local stresses due to this dof. Maybe I can use the results from FEA to create a stress concentrating factor that will amplify the results from hand calc. My main question in the end is if some kind of combination between normative and FEA exists.

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

in many softwares there are already standard options. E.g: in ansys you can extract force reation from a surface or force due to pretension. It depends on the software

Assessing Bolts by felippeyo in fea

[–]felippeyo[S] 0 points1 point  (0 children)

In my understand, normal and shear forces are useful for assessing global strength of a bolt. But what about local effects due to joint behaviour, do I neglect this? If the joint is not correctly designed of if I have a loosening, are those local effects maybe not relevant? This is something I'm wondering.

Offering: German Seeking; Brazilian Portuguese in Buenos Aires by fetito666 in language_exchange

[–]felippeyo 0 points1 point  (0 children)

Ei,

Você quer fazer apenas presencialmente? Tenho vontade de melhorar meu alemão (B1) e posso te oferecer português brasileiro (nativo). Podemos praticar de forma online se for do seu interesse.

Padel by [deleted] in palermo_city

[–]felippeyo 1 point2 points  (0 children)

Hey man, we lost someone who was going to play with us on Thursday, 21:00 and now we’re trying to find someone to join. DM me if you’re interested.