Buckling Analysis of Beaded Metallic Cylindrical Shells

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Nesaei, Faraz | 2024

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 56903 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Kouchakzadeh, Mohammad Ali
Abstract:
Cylindrical shells are widely used in industries. For example, they are used as type 3 pressure vessel's liner. In this work, linear buckling of bead stiffened cylindrical shells under axial load or lateral pressure has been investigated by using numerical modeling. Bead form of cylindrical shell in longitudinal and circumferential direction and combination of both direction is considered. Different parameters such as number, dimension, direction (inside or outside) and cross-section's area of beaded form are considered. The obtained results show that creation of longitudinal beads decrease and increase the critical load and pressure compared to the simple cylindrical shell respectively. The amount of increase mentioned is less than critical buckling pressure can obtain in stiffened cylindrical shell. Also, creation of circumferential beads can reduce the critical buckling load and increase the critical buckling pressure per weight compared to the simple and stiffened cylindrical shell
Keywords:
Buckling ; Cylindrical Shells ; Stability Analysis ; Critical Buckling Pressure ; Metallic Shell ; Beaded Cylindrical Shells

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