Downloaded from https://www.everyspec.com MIL-STD-1312B 5. Load readings from the readout equipment associated with the fatigue testing machine, if any. 6. The estimated value of the maximum startup overshoot or undershoot at esch dynamic condition and the time to reach a steady state cyclic condition. 7. The date of calibration. 100. FIXTURES. Standard .fixturinghas been developed for various.types of fatigue machines ( r e s o n a n ; , spring/mass, s~rvo-hydraulic,“direct- stress, etc.). Examples of typical fixtures are included for reference only. I 100.1 Hole details. Head-to-shank fillet clearances, countersink \ head details, spacers, and adapters are shown in Figure 5.
100.2 Threaded fasteners, / a. Example fixtures for use with threaded fasteners in spring/mass, servo-hydraulic and direct stress machines are shown in Figures 6 through 12. I b. Example fixtures for use with threaded fasteners in Amsler resonant freauencv machines are shown in Fimres Installation formed fasteners. ,;. 13 through 15. - .. 100.3 a. Example f’ixturesfor uae with installation formed fasteners in spring/mass, servo-hydraulic and direct stress machines are shown in Figures 16 through 18. b. Example fixtures for use with installation formed fasteners in Amsler resonant frequency machines are shown in Figures 19 and 20. 18 L