Failure of bolt pattern
Failure of bolt pattern
(OP)
I am designing a machine to take a push cart and dump it in a tote. I have a holder that is to bent out of sheet metal and I need to know what thickness I need for that. I currently have it at 3 gage but that is not easily bent into shape. Here are some pictures of my design


I see the sheet metal as being the mode of failure since
I 20 3/8-16 bolts holding it between two plates. From some of my recent research about this problem is that if the pretension of the bolts is high enough I would have to over come the force of friction to shear the sheet metal. If I am correct at my assumptions how do I figure out the material thickness that I can have. I am only lift about 300lbs. This is a high estimate but that will factor in with my factor of safety.
Thanks for the help.


I see the sheet metal as being the mode of failure since
I 20 3/8-16 bolts holding it between two plates. From some of my recent research about this problem is that if the pretension of the bolts is high enough I would have to over come the force of friction to shear the sheet metal. If I am correct at my assumptions how do I figure out the material thickness that I can have. I am only lift about 300lbs. This is a high estimate but that will factor in with my factor of safety.
Thanks for the help.





RE: Failure of bolt pattern
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Failure of bolt pattern
RE: Failure of bolt pattern
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Failure of bolt pattern
RE: Failure of bolt pattern
RE: Failure of bolt pattern
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.