Chris Wowk MANE 6970 Master’s Project

 All Analyses Completed  Technical Content Sections Populated  Comments Incorporated To Go  Finalize Appendices  Abstract  Acknowledgements

 Waters and Schneider’s (1969) method for analyzing cover plate/flange joints extended to determine flange separation

Solid Element Model Shell/Beam Element Model

 Shell/Beam FEA predicts much lower joint separations (all cases)  Joint Separation decreases as cover thickness increases  Greater separation for larger size flange at low preloads. Approaches similar limit as smaller joint as preload increases

 Great agreement between analysis methods for 4 NPS joint  Contact location cannot be normalized to compare different sized joints

 RBT and Appendix Y equations appear to approach a limit  FEA solutions show increase at high preloads  Stress decreases as cover thicknesses increases

 FINISH – ASAP!!

 ASME Boiler and Pressure Vessel Code, Section VIII – Rules for Construction of Pressure Vessels, 2013 Edition, Appendix Y.  Galai, H and Bouzid, A.H, “Analytical Modeling of Flat Face Flanges with Metal-to-Metal Contact Beyond the Bolt Circle,” Journal of Pressure Vessel Technology, Vol 132,  Schneider, R.W, “Flat Face Flanges with Metal-to-Metal Contact Beyond the Bolt Circle,” Transactions of the ASME, Vol 90, 1968, pgs  Waters, E.O and Schneider, R.W, “Axisymmetric, Nonidentical, Flat Face Flanges with Metal-to-Metal Contact Beyond the Bolt Circle,” Journal of Engineering for Industry, Vol 91, 1969, pgs