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  • Proper Fastener Selection and Application are Key to Bolted Joints That Won't Loosen or Lose Clamping Force
    What's a nice bolt like you doing in a joint like this? The right fastener and proper installation methods keep bolted joints from loosening. Experimental Analysis of Thread Movement in Bolted Connections Due to Vibration, Auburn University report prepared for NASA research project NAS8-39131, 1995
  • Black oxide passes hydrogen-embrittlement test
    to failure. And susceptibility to embrittlement tends to increase with the tensile strength or hardness of the steel. Thus, the very design of high-strength fasteners, with their many stress risers and notches and typical exposure to high dynamic loads, makes them ideal candidates for failure
  • Leadscrews roll over ball screws
    Leadscrew technology has made vast strides. Now, leadscrews offer higher performance at lower cost. Leadscrews were once considered a cheap substitute for ball screws to be used mostly in less demanding applications. They were often assembled using low-quality ball-screw or fastener designs, where
  • Forget general-purpose software -- Get Focused
    , and a few dimensions. The handbook approach would need separate models for each design configuration. The results screen for a ninehole lap joint produces a table of maximum stresses, loads on each fastener, and resulting stress pattern. AcuRes, a collaboration of Snecma Moteurs of France

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