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@rb1957 Of course, I think my assumption was not clear I mean that I run the simulations with no pretension Meaning that results are not even realistic. When I put some pretension, stress will be much higher in simulations

Hmm ok I will try to have some inputs about non liner analysis too About the bolts, yes I know about combining allowable resistance. It is in EN 1993,but it only considers sear + tension. Bending is not considered in bolts. Maybe I am missing that Yes, bolts are the only loadpath as faces are...

@DenverStruct You are right, thanks for the information. I realized I need some inputs about how FEM mesh is working, that article has been useful! So thank you all for your answers. All of them have been useful I will redo the meshing process with detailed analysis attending mesh convergence...

So I am designing some steel structure where exists a bolted joint The "cylinder" (total 11 tons), is joint by 20 bolts (M22 10.9 grade bolts) to the "frame" or beams (S275 steel, HE 180M profiles). The FEM simulation is predicting high Von Mises stress in the joints holes and the bolts...

Thank you all very much for your help.

@drawoh @rb1957 Thank you for your answers About contracting this out, initially the company is not considering it. However, we have time to learn some inputs and develop this carefully So, Yes, 1 is braced and 5 not, but not for particular reason, we just thought it would not be needed, as...

Hello all, I need to design an structure which is able to support a cylinder loaded with 10 tons of weight distributed around its external face The current model is the one you can see in the pictures. A FEM analysis has been carried out using "Simscale" and this is the result. I would...

Hello @desertfox That´s great. Thank you very much! It will be so helpful

You have been so helpful, I will note about this. Thank you very much

Ok, thank you very much for the advice By "siamese" you mean diameter? Also, do you know any reference where I can check the rule? (not that I do not trust you, it´s because it will be documented If possible) Thank you!!

Right, that is why I did not show in the first time Basically my concern is about making the holes in a "so thin" sheet. I am not aware about "how big" can it be with no compromising the material

Hello, thank you for your response Of course, The idea is to create a steel support (blue) in a ring shape, containing lead blocks (grey) inside: https://imgur.com/a/tJCNU Total lead weight estimated is 14 Tons, while the ring middle radious is 1,125 m Several analysis returns that the...

Hello, We are designing an steel curved structure with a rectangular opened section, please see images. It needs to be able to be opened for maintenance purposes. So, the joining of the different sheets which form the curved beam have to be bolted. My question is how big can be the hole, so...

Ok then, I will be using the two vertical loads So about the stability issues. Do you know how could I work on it? Thank you

Thank you for the help Well, actually FEM simulations seems to be ok (70 Mpa Von Mises), so yes it looks robust. https://imgur.com/a/9K8c6 Also, we will think about the outside supports However, we also want to make the manual calculations. So prex, thank you, I will look at it carefully...

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Hello all My name is Javier, I am a worker for Helmholtz Institut Mainz. We are building some steel support for a lead ring, and we want to simplify the model to a linear beam so we can calculate the stress. The beam must be rectangular with a little open so some elements can get through...