A Study Of Strengthening Circular Diaphragm By Ring-Shaped Concentric Ribs

• Main Authors: Dr. Somer M. Nacy, Dr.Hikmat Al-Rawi, Mohammed M. Hasan
• Format: Article
• Language: English
• Published: Al-Khwarizmi College of Engineering – University of Baghdad 2017-12-01
• Series: Al-Khawarizmi Engineering Journal
• Subjects: Keywords : diaphragm, Nastran, Static, Dynamic.
• Online Access: http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/2

 This paper deals with the determination of stresses and deflections of clamped circular diaphragm strengthened by one or two ring-shaped concentric ribs, under uniform static and dynamic pressures. The simulation has been achieved by using the well-known engineering software finite element package MSC/NASTRAN.   As a design study, the effect of using a clamped ring, and the effect of using a ring-shaped rib on both surfaces of diaphragm instead of one, has been discussed in this work. To show the effectiveness of this study, results of this work have been compared with  published data [1]. In  the  conclusion,  the  authors underline  the  validity of  the  considered design study, and  the  optimization of strengthened diaphragms.