Quote:
quote:Originally posted by grayghost03
Bingo, your missing the difference between torque and tension. Tension is the stretching of the bolt, this is good, this is what clamps pieces of material together, you will have elongation on a torqued bolt.
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I understand the difference, what I am saying is that if the tension (or stretching) affects the torque and the initial elongation when the torque is applied, then there is a design flaw somewhere. The elongation is expected when the bolt is torqued, the elongation should not be exacerbated by the application of the normal load (the weight of the rig). Therefore, in my mind, either the pre-load torque is wrong, or the bolt design is wrong. This is not based on engineering, just my warped view of common sense which is usually biased by engineering.
Bingo