ANALYSIS OF EFFICIENCY OF THREE-LAYER WALL PANELS WITH A DISCRETE CORE

Introduction: The paper addresses thin-walled three-layer plates and panels with cutouts, reinforced an orthogonal grid of stiffeners or rectangular reinforcement parallel to the coordinate lines. In this case, thickness entire structure is taken into account analytically using unit column functions. Purpose study: We aimed build a mathematical model deformation develop method for analysis stability elastic isotropic wall discrete core. Methods: Based on apparatus generalized functions Bubnov–Galerkin method, eigenvalue problem solved determine critical parameters compressed panel Results: According suggested we perform different values core stiffness study impact buckling load, consumption materials, efficiency engineering structures.