MODELING OF THERMO-ELASTIC-VISCO-PLASTIC DEFORMATION OF SHALLOW METAL-COMPOSITE SHELLS USING THE REFINED THEORY OF BENDING

The dynamic problem of thermo-elastic-viscous-plastic deformation shallow composite shells is formulated using the refined theory bending. In this case, tangential displacements along thickness constructions are approximated by polynomials third and higher orders, deflection does not depend on transverse coordinate. Normal stresses in composition have a linear distribution over thickness. temperature curved panels 7th order polynomial. geometric nonlinearity taken into account Karman approximation. multidirectionally reinforced with continuous fibres. materials isotropic; their plastic described flow isotropic hardening, loading function depends strain rate. numerical solution coupled nonlinear two-dimensional initial-boundary value obtained an explicit scheme. Elastic-viscous-plastic, thermo-elastic-plastic response metal-composite cylindrical shell rectangular shape orthogonal 2D-reinforcement structure has been studied. construction frontally loaded air blast wave. It demonstrated that under such must be calculated, taking occurs them sensitivity properties to rate deformation. it necessary apply bending shells, its simplest version, Ambartsumian theory. A more intense thermomechanical panel observed when dynamically from convex front surface. at individual points construction, can briefly increase 200 °C. found side any face-surface, they snapping towards concavity thin-walled structures.