Software available to determine bolt/nut shear strength

[jsabs]

Is there software available to determine the shear and tnsile strength of plastic bolts and nuts?

 

[wes616]

try engineers toolbox (do a google search, i dont' know the url off the top of my head)

Wes C.
------------------------------
In this house, we OBEY the laws of thermodynamics! - Homer Simpson

 

[CoryPad]

If you know the shear strength and tensile strength of the plastic materials, then these softwares can calculate the fastener strength (and much more):

SR1 from Hexagon

http://www.hexagon.de/sr1_e.htm

MDESIGN Bolt from TEDATA

http://www.tedata.com/en/produkte/mdbolt.html

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[unclesyd]

Was debating whether SR-1 would do the job and CoryPad answered the question.

You might take a look at this US site for SR-1. They have a demo.

http://www.rstechltd.com/SR1.htm

 

[arto]

How about make a spreadsheet with the Tgread Strength equations in ASME B1.1 App.B?

 

[cooperjer]

I would be hesitant using a bolt design software for plastic bolts. I’m sure they would work great for steel bolts, and possibly for SST bolts, but plastic is a whole different creature.

Some things that the plastic may affect are fatigue, creep, and stress concentrations in threads. As far as I’m aware there is not fatigue limit for plastics, however, plastics are always changing. In addition temperature will play a much larger effect on the fastener which could lead to creep and loose fasteners. Finally, on the plus side, plastic has a tendency to deform and ease stress concentrations, where steel, depending on grade, will have a tendency to start cracking.

Just some thoughts.

cooperjer


Cooperjer
Mechanical Engineer