Buckling of cracked cones subjected to axial compression

Buckling of Axially Compressed Conical Shells with Multiple Imperfections

“…During the cone modelling in Abaqus, the mesh-zooming scheme proposed in Estekanchi and Vafai (1999) was implemented -mesh size is finer at the crack region in comparison to the uncracked region of the cone. The numerical FEA has been benchmarked against the numerical data presented in Jahromi and Vaziri (2012) and the result can be found in Ifayefunmi and Mahidan (2020). The percentage difference between Jahromi and Vaziri (2012) and Ifayefunmi and Mahidan (2020) is from 0.99 to 1.01.…”

“…The numerical FEA has been benchmarked against the numerical data presented in Jahromi and Vaziri (2012) and the result can be found in Ifayefunmi and Mahidan (2020). The percentage difference between Jahromi and Vaziri (2012) and Ifayefunmi and Mahidan (2020) is from 0.99 to 1.01. Thus, the appropriateness of the above numerical scheme is proven.…”

“…It is usually inevitable owing to the manufacturing process or unforeseeable damage (Dinkler and Knoke 2003). Several types of well-known imperfection includes the nonuniformity in the material's physical properties, geometric imperfections (Mahidan and Ifayefunmi 2020a;Ifayefunmi and Mahidan 2021;Khakimova et al 2014;Özyurt et al 2017), load eccentricities (Castro et al 2014), boundary conditions irregularities , crack imperfection (Ifayefunmi 2020;Ifayefunmi and Mahidan 2020;Cui and Shao 2015;Ali 2013), material discontinuity (Ifayefunmi and Ibrahim 2018;Ifayefunmi 2017), etc. To date, there is a vast amount of literatures that can be found concentrating on the effect of geometric imperfection on the buckling behaviour of certain structures such as conical and cylindrical shells.…”