Open AccessFinite-element analysis of plate stability under conditions of nonlinear creep
Author(s) -
Batyr Yazyev,
Антон Чепурненко,
Anastasia Lapina,
Xin Song
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/913/2/022016
Subject(s) - creep , deflection (physics) , buckling , nonlinear system , finite element method , structural engineering , allowance (engineering) , materials science , mechanics , physics , composite material , classical mechanics , engineering , mechanical engineering , quantum mechanics
Resolving equations are obtained for the finite element analysis of the stability of plates and shells with allowance for nonlinear creep. The issue of plate stability under creep process is investigated by the example of a round plate rigidly clamped along the contour with an initial deflection under the action of radial compressive forces. It has been established that for plates made of a material that obeys the nonlinear Maxwell-Gurevich law, there is a long critical load p ∞ . When the load is less than the long critical ( pp ∞ , the rate of growth of the deflection increases.