Final EJMA - Princeton Plasma Physics Laboratory · EJMA Fatigue Life estimate for combined Axial...
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![Page 1: Final EJMA - Princeton Plasma Physics Laboratory · EJMA Fatigue Life estimate for combined Axial and Pressure loads onlycombined Axial and Pressure loads only See slide #2 for “St”](https://reader030.fdocuments.net/reader030/viewer/2022021616/5b2f87bd7f8b9a594c8e616b/html5/thumbnails/1.jpg)
Final_ EJMA.ppt
![Page 2: Final EJMA - Princeton Plasma Physics Laboratory · EJMA Fatigue Life estimate for combined Axial and Pressure loads onlycombined Axial and Pressure loads only See slide #2 for “St”](https://reader030.fdocuments.net/reader030/viewer/2022021616/5b2f87bd7f8b9a594c8e616b/html5/thumbnails/2.jpg)
EJMA vs. NASTRAN CalculationsUsed to check the Finite Element simulation
![Page 3: Final EJMA - Princeton Plasma Physics Laboratory · EJMA Fatigue Life estimate for combined Axial and Pressure loads onlycombined Axial and Pressure loads only See slide #2 for “St”](https://reader030.fdocuments.net/reader030/viewer/2022021616/5b2f87bd7f8b9a594c8e616b/html5/thumbnails/3.jpg)
Results From Pressure and Axial Loads only
Equations are from Section 4.13 of the EJMA manual
Slides #3 and #4 present calculation for , t = .02, w = 1.095, q = 1.0 inchesp , , , qSlides #5 and #6 present calculation for , t = .025, w = 1.095, q = 1.0 inchesSlides #7 and #8 present calculation for , t = .03, w = 1.095, q = 1.0 inches
Slides #9 to #11 present data for various coefficients which are used in theabove calculations.
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EJMA Fatigue Life estimate forcombined Axial and Pressure loads onlycombined Axial and Pressure loads only
See slide #2 for “St” values