University of Limerick
Ansari_2023_Effect.pdf (5.26 MB)

Effect of potting support design on compression buckling of composite  cylindrical shells

Download (5.26 MB)

The design of thin-walled cylindrical shells under compression loading is mostly driven by buckling considerations. However, accurate experimental evaluation of the buckling load is challenging due to small variations in boundary conditions due to manufacturing tolerances in support conditions. To test a cylindrical shell under compression loading, potting support is usually created around its bottom circumference to avoid edge crippling that could otherwise drastically reduce its critical buckling load. Therefore, investigating the effects of the potting support on the buckling response of cylindrical shell structures is important to mimic boundary conditions as close as possible to real structural constraints of the boundary. The main objective of this work is to investigate the effects of single and double-sided potting supports on the critical linear buckling load of composite cylindrical shells under compression loading. Then, this paper provides insights into understanding underlying reasons for the deviations of theoretical buckling loads from their corresponding experimental values due to boundary conditions, which can occur independently from, or in combination with, geometric imperfection sensitivity. Finally, robust linear buckling expressions that can help designers estimate the reduction due to support conditions are presented. These expressions can be used for evaluating initial safety margins for the potting support design used for testing 

cylindrical shells. 


Spatially and Temporally VARIable COMPosite Structures (VARICOMP)

Science Foundation Ireland

Find out more...



Engineering Structures, 2023, 285, 116086



Also affiliated with

  • Bernal Institute

Department or School

  • School of Engineering

Usage metrics

    University of Limerick