March 27, 2023 at 6:08 am
Tim Dietl
Subscriber

Hello Peter, thanks for your answer.

When the red face ends, thats the point wher the threads on the shank touch the threads in the hole.

First step: bolt pretension

second: working load ( 5,5MPa Pressure)

Here it says adjustment reaction: 0,1736mm. 

And deformation = FL/AE = 48458N*42mm/(2*10^5MPa*PI/4*12^2) = 0,089977mm

I am confused?