MadSci Network: Engineering

Subject: Does fatigue apply to preloaded fasteners too ?

Date: Sun Oct 1 07:24:21 2000
Posted by Ed Porro
Grade level: grad (science) School: Villanova University
City: Horsham State/Province: PA Country: USA
Area of science: Engineering
ID: 970399461.Eg

Basically my understanding from my machine design course (Juvinall) is 
that fatigue (endurance limit of the bolt) is used when sizing a bolt.  
Such concept has always been my understanding (either in tension, shear or 

  I found a web page ( that states 
that bolts are not affected by fatigue ?.  My understanding so far has 
been that all machine components & joints are affected by fatigue.  This 
includes bearings, gears, welds joints, bolts, etc.



Re: Does fatigue apply to preloaded fasteners too ?

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