Open AccessCALCULATION OF THE CYLINDRICAL WALLED PERFORATED SHELLS.
Author(s) -
Сергій Іванович Трубачев,
Olga N. Alekseychuk
Publication year - 2015
Publication title -
mehanika giroskopičeskih sistem/mehanìka gìroskopìčnih sistem
Language(s) - English
Resource type - Journals
eISSN - 2519-2272
pISSN - 0203-3771
DOI - 10.20535/0203-377128201442291
Subject(s) - shell (structure) , stiffness , materials science , stress (linguistics) , stress–strain curve , internal pressure , structural engineering , shell theory , composite material , mechanics , physics , engineering , deformation (meteorology) , philosophy , linguistics
The stress-strain state of thick-walled cylindrical perforated shell under internal pressure is consider. Defined the reduced stiffness of the shell by defining an equivalent thickness. A numerical calculation using solid (3D) and shell finite elements is done. Analyzed stress-straine state of circle perforating holes and the thickness of the wall. Compared the stress-straine state obtained on solid three-dimensional model with the results for a shell with equvivalent stiffness. Were given advice on the definition of strass-straine state by using the eqvivalent stiffness considering stress concentration.