Hello
What material do you use for bolt-type connections?
Example:
I carry out a study with 10.9 bolts. I can fill in the subject or fill in the Young's modulus and the Poisson ratio.
I can't find a table for the different qualities of bolts.
Thank you in advance.
Have a nice day.
Hello
look at this site, there is a small table that is fine...
http://www.technocalcul.com/FR/resistance_meca_vis.html
Have a nice day.
Hello
Your study really focuses on the shape that bolts take under load? In general, knowing the yield strength is more than enough for a screw calculation. In this case you could put the values you want for the Young's modulus and the Poisson ratio without influencing the result.
Cyrille
Of course, I've already seen this painting. But no Young's modulus and even less a Poisson coefficient for steel screws.
Cyrille. CM:
Thank you. I wasn't sure of the influence of his values. :-)
I can't understand how you can get a correct deformation result by having only the value of Re (Hooke's law). Could you please elaborate?
This is because in general a screw study is concerned with the moment when the screw loses its tightening function .
To simplify, the tightening torque of a screw is established so that the resulting force in the body of the screw corresponds to 80% of its yield strength. At this point, the screw is deformed according to its Young's modulus (elongation) and its poisson's ratio (shrinkage) but this deformation has no impact on the quality of the connection which depends on the force exerted by the screw.
Don't forget to put the tightening torque on the plan when it is important !
Cyrille