Static Stress Simulation Contacts

[kunitsavova]

Dear friends, hello everyone.

I have a commonplace question to a respected audience. Does anyone have an explanation of the contacts in static stress analysis in pictures? I try to set contacts in the simulation manually and am unsure that even after reading the help to the program I have no questions left. Below are photos of the simulation, and the places where I try to make contacts.

Thank you in advance.

Vova

1

2

3

[kunitsavova]

Dear friends, hello everyone.

I have a commonplace question to a respected audience. Does anyone have an explanation of the contacts in static stress analysis in pictures? I try to set contacts in the simulation manually and am unsure that even after reading the help to the program I have no questions left. Below are photos of the simulation, and the places where I try to make contacts.

Thank you in advance.

Vova

1

2

3

[mcmillr]

Automatic contact detection should create all the contacts you need in most cases. We have logic to avoid cases where you might not want contacts, i.e. curved/fillet face that is nearly tangent to a planar face. You can adjust the tolerance if you have geometry that is nearly but not quite touching and you want there to be a contact. You can then change the contact type from bonded to one of the other types. Explaining when you want the various kinds of contacts is beyond the scope of a simple reply. Check out the online help for contacts and maybe you can find more sources of information about the engineering principles behind bonded,separation/sliding,rough,offset bonded.

http://help.autodesk.com/view/fusion360/ENU/?guid=GUID-B43E60CD-1859-4A09-9AD4-394525DAA2D7

[mcmillr]

Automatic contact detection should create all the contacts you need in most cases. We have logic to avoid cases where you might not want contacts, i.e. curved/fillet face that is nearly tangent to a planar face. You can adjust the tolerance if you have geometry that is nearly but not quite touching and you want there to be a contact. You can then change the contact type from bonded to one of the other types. Explaining when you want the various kinds of contacts is beyond the scope of a simple reply. Check out the online help for contacts and maybe you can find more sources of information about the engineering principles behind bonded,separation/sliding,rough,offset bonded.

http://help.autodesk.com/view/fusion360/ENU/?guid=GUID-B43E60CD-1859-4A09-9AD4-394525DAA2D7

[Andrea.Heckenberg]

Hi @kunitsavova ,
If you'd like a little more background information on contacts in Fusion 360, there are also a couple of short videos that might help:
https://help.autodesk.com/view/fusion360/ENU/courses/AP-CONTACT-TYPES-FOR-SIMULATION-1
https://help.autodesk.com/view/fusion360/ENU/courses/AP-WORKING-WITH-IMPORTED-GEOMETRY-OVERVIEW

If you still have questions, please let us know.

[Andrea.Heckenberg]

Hi @kunitsavova ,
If you'd like a little more background information on contacts in Fusion 360, there are also a couple of short videos that might help:
https://help.autodesk.com/view/fusion360/ENU/courses/AP-CONTACT-TYPES-FOR-SIMULATION-1
https://help.autodesk.com/view/fusion360/ENU/courses/AP-WORKING-WITH-IMPORTED-GEOMETRY-OVERVIEW

If you still have questions, please let us know.

[kunitsavova]

Dear friends.

Thank you so much for your answers. Unfortunately, in my opinion, there are not enough various examples in all the materials that are proposed for study. Educational videos have very few examples for contacts like Separating and Sliding.

I apologize, but I still do not understand when it is better to use one and when the other contact? Under what conditions do we need the body to slide relative to another body but cannot separate from it? What are some examples of this? Also with Separating.

If you have more visual examples of the use of these contacts, I would greatly appreciate it.

Thank you in advance.

[kunitsavova]

Dear friends.

Thank you so much for your answers. Unfortunately, in my opinion, there are not enough various examples in all the materials that are proposed for study. Educational videos have very few examples for contacts like Separating and Sliding.

I apologize, but I still do not understand when it is better to use one and when the other contact? Under what conditions do we need the body to slide relative to another body but cannot separate from it? What are some examples of this? Also with Separating.

If you have more visual examples of the use of these contacts, I would greatly appreciate it.

Thank you in advance.