stress analysis -> perno-foro simulation

[Filo]

I have to do an analysis to a plate (in attachment pdf and ipt) connected with the "rest of the world" through three pins, 2 serve as a fastening while a hydraulic cylinder is applied to one. while I can easily simulate the strength of the cylinder using loads->cushion, how can I simulate the bond of the other 2 pins? logically using the pin bond is not correct because it blocks the entire inner surface of the hole and not only the part where it supports the pin.

Thank you.
Hi.

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[Filo]

difficult or unclear question?

Hi.

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[wert]

I think you weren't very clear about what you need to know.
Intuition, you would like the bond to take into account the fact that the plate is fixed through pins and you want the surface to come into play on, right?
if I have guessed, you have to create on the affected face, a circular profile having the pin head radius and then use the "divid" command (in the 3d model, not in sheet); In this way you will have a circular crown on which to rest the fastener.
Let me know if that's what you wanted to know.
Hi.

 

[Filo]

the pins must be placed in the three holes. a pin is loaded radially, while the other 2 serve to fix the plate to the rest of the machine. I hope you can help more.
I can't divide the inner surface of the hole because I don't know what will be the part where I get the contact.
or I study the forces, I see the direction of the reaction force and at that point I divide the internal surface.

I wanted to avoid an axieme analysis.

I hope I've been clearer
Hi.

 

[wert]

but have you tried to make a simulation by putting the fixing on the surface of the holes?
Your fear is that simulation does not give you a correct result?
In fact, if you do, you will notice that the stress of the reaction points will be realistic, focusing where the direction of the reaction will go to direct
Try it and then see.
Hi.

 

[Filo]

on the holes logically I have no deformation, which instead in reality should happen and the stresses are low, especially in the low hole.
Hello again

 

[Filo]

I forgot... and in the hole in another right I should not have pressing left of the hole well to the right where it goes in compression

Hi.

 

[wert]

See that this simulation is good as a distribution of stresses. then I don't know what strength you applied but it seems to me to remember that the plate has thickness 12 mm and the holes dia 35.
today at work I tried and reached the limit of yield with a force greater than 70000 n....

 

[Filo]

this is the result of the analysis made on the whole axieme, as from the image of the post #4.
In the absence that efforts and deformations can be greater or lesser to me the distribution seems much more real and in line with the study of the balance of the forces that in the meantime I have done.

on the plate I have about 50000 n

hello and thanks again