Open AccessEXPERIMENTAL AND NUMERICAL INVESTIGATIONS ON THE STABILITY OF CYLINDRICAL SHELLS
Author(s) -
Attila Baksa,
David Gonczi,
Laszla Peter Kiss,
Péter Kovács,
Zsolt Lukács
Publication year - 2021
Publication title -
journal of engineering studies and research
Language(s) - English
Resource type - Journals
eISSN - 2344-4932
pISSN - 2068-7559
DOI - 10.29081/jesr.v26i4.233
Subject(s) - buckling , shell (structure) , stability (learning theory) , finite element method , mechanics , range (aeronautics) , materials science , structural engineering , geometry , mathematics , physics , engineering , composite material , computer science , machine learning
The stability of thin-walled cylindrical shells under axial pressure is investigated. The results of both experiments and numerical simulations are presented. An appropriate finite element model is introduced that accounts not only for geometric imperfections but also for non-linearities. It is found that small geometrical imperfections within a given tolerance range have considerable negative effect on the buckling load compared to perfect geometry. Various post buckling shell shapes are possible, which depend on these imperfections. The experiments and simulations show a very good correlation.