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A model is described for studying the effect of the physicomechanical characteristics of composite carrier layers on the stress and strain state of sandwich cylindrical shells weakened by rectangular cutouts. The finite element model considered allows us to perform the layer-by-layer analysis of the stress in a wide range of physicomechanical characteristics of the layers. To obtain effective approximations leading to a high convergence rate of numerical solutions and to build the finite element of the carrier layers, the equations of the general sell theory are used. To build the finite element model of the filler, the elasticity theory equations for a three-dimensional body and the carrier layer finite element approximations obtained are applied. The effect of the physicomechanical characteristics of composite carrier layers on the stress and strain state for sandwich cylindrical shells with rectangular cutouts is studied.

journal of physics. conference series

Analysis of the effect of the physicomechanical properties of composite materials of carrier layers on the stress state of sandwich shells with rectangular cutouts