Investigation on dynamic hygro-thermo-elastic response of cylindrical shells with a porous microcapsule coating

摘要

The dynamic hygro-thermo-elastic response of cylindrical shells with a porous microcapsule coating under coupled transfer of heat and moisture is investigated in this article. This structure is treated as a double-layer cylindrical shell for simplifying the calculation. The one-dimensional Luikov's equations are applied to build the coupling diffusion system of heat and moisture and the nonlinear dynamic governing equations are based on the classical shell theory. The differential quadrature method (DQM) and the Runge-Kutta method are used to achieve the numerical results of temperature and moisture fields. Moreover, the Runge-Kutta method is used to solve the nonlinear dynamic governing equations. Effect of different temperature and moisture boundary conditions, geometry size of microcapsules and porosity are considered in this paper. Investigations in this paper may offer theoretical references to researches of the microcapsule coating operating in complex environment conditions.