13th September 2021, 05:48
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#9
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This is my second home
75 Tourer 2.5 Auto, 1.8T, 75V8ZT
Join Date: Jun 2007
Location: Johannesburg ZA
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Quote:
Originally Posted by MSS
Not correct.
Hooke's law only applies in the elastic region of the stress-strain curve.
A 1mm stretch of a circa 400mm steel rod (bolt) actually represents quite a large strain.
Also, plastic deformation, which is what is said to occur with these bolts, continues beyond the yield point for many metallic materials so to use the term torque-to-yield is not inaccurate in this application.
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Sorry. It should have been "elastic", not plastic. E has been swapped for P.
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