Quick Tip: Ansys Mechanical: How to Setup Bolt Pre-Tensioning Properly 

Happy to hear that!

Glad you enjoyed this video! Make sure you subscribe for more content!

Glad you found it helpful!

Hello Jack, First question I have for you is what is important? Are you studying the failure of the threads? Or is this clamping a gasket you're studying? In other words, is the failure of the hardware itself important or what it is fastening? If you are interested in seeing if the hardware is going to fail, you're going to have to model the threads in and do a small scale analysis and I'll explain why. When a screw and threaded hole engage, the bottoming of the screw will cause the screw to deform and the bottom area will get wider. This will cause the last 2-3 threads to be the only threads truly engaging. If you are not interested in the hardware, I recommend just bonding the surfaces in the blind hole to the shaft. Sincerely, John Dao

@@johndao8592 Hello John, Thank you for the reply and recommendation. Sorry i did not specify what I'm trying to simulate. The model is simply a table and its legs screwed in from the top. So in total i have 4 pretension bolts, in blind holes and im looking to see if the table and legs remained fastened together when subjected to a large load in the y direction. Around 100lbs for the load. I modeled the screws without any threads and separated the faces with their respective contact (leg and table). Thank you, Jack

Hello Cylex96, I usually try to insert a "method" and apply a "multizone" to get a a nice hex mesh. There are many meshing capabilities of Ansys, I hope to walk you through some in more tech-tip videos or our live AVA webinars. Please subscribe if you haven't! Sincerely, John Dao

Thanks John!

Hello can you clarify the question please? KETIV | Nicole Morris

@@KETIVTechnologies describe the contact used between the surfaces of interest. I mean between the nut and the washer. Between the washer and the plate ...