Open AccessStability of articulated-movable supported perforated shells
Author(s) -
I. V. Kamenev,
AUTHOR_ID,
A. G. Chernyh,
В. М. Попов,
V. V. Belov,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
vestnik graždanskih inženerov
Language(s) - English
Resource type - Journals
ISSN - 1999-5571
DOI - 10.23968/1999-5571-2021-18-5-40-48
Subject(s) - orthotropic material , shell (structure) , anisotropy , constructive , composite number , deformation (meteorology) , stability (learning theory) , materials science , geometry , structural engineering , composite material , mathematics , physics , engineering , computer science , optics , finite element method , process (computing) , machine learning , operating system
The article considers sloping shell structures of rectangular design. The shells are made from orthotropic composite materials, articulated-movable supported on the contour, and weakened with holes. Two mathematical models of deformation of such structures have been developed: taking into account the discrete input of holes and with using the constructive anisotropy method. The shell stability calculation has been carried out, using three different geometries of shells which were made of 4 composite materials. Thus, altogether 12 structures have been investigated. It is shown that with an increase in the number of holes, the results obtained by the constructive anisotropy method coincide with the results obtained with the discrete introduction of holes.