PT - JOURNAL ARTICLE AU - Manuylov, Gaik A. AU - Kositsyn, Sergey B. AU - Grudtsyna, Irina E. TI - Numerical and Analytical Investigation of Stability of the Reinforced Plate DP - 2021 Oct 1 TA - Communications - Scientific Letters of the University of Zilina PG - B278--B287 VI - 23 IP - 4 AID - 10.26552/com.C.2021.4.B278-B287 IS - 13354205 AB - The work is aimed at the construction of an algorithm for studying the equilibrium states of a reinforced plate near critical points, using the first (cubic terms) nonlinear terms of the potential energy expansion. Using geometrically nonlinear analysis of displacement, deformation and stress fields, the Eigenforms of buckling were calculated and bifurcation solutions and solutions for equilibrium curves with limit points were constructed depending on the initial imperfections.