A set-screw profiled glue joint in cryogenic struts raises yield strength 10% and ultimate strength 33% over smooth designs, delivers factor-of-safety 7, and shows no damage after three years of 300 K to 100 mK cycling.
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The Simons Observatory: Improved Cryogenic Struts for use in the Large Aperture Telescope Receiver
A set-screw profiled glue joint in cryogenic struts raises yield strength 10% and ultimate strength 33% over smooth designs, delivers factor-of-safety 7, and shows no damage after three years of 300 K to 100 mK cycling.