wetwork65
A wet business
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Yes agree. The angle stipulated is more precise and will give a known percentage of strain by a direct calculation. (i.e. the distance along an inclined plane, which is the nut travelling along the thread)I was under the impression that if you’re given a torque setting of x plus x degrees that it is for torque to yield bolts and that the x degrees is for the bolt to stretch. (Meaning single use)
Where as if your given a torque setting of x and that’s it then you can reuse the bolts
If the bolt is being stressed beyond yield, then the bolt will start to go "loose" and be on its path to failure. Thus I would not expect these to be torque to yield.
Anyone here recall the stress/strain graph from Mech Eng days?