Response of metal matrix laminated cylindrical panels to combined uniform temperature change and edge displacements

Abstract

A quasistatic response of metal matrix laminated cylindrical panels subjected to a combination of uniform thermal loading and applied edge displacements is addressed. To treat the problem, an approach based on a micro-to-macro analysis is proposed. A micromechanical analysis enables one to account for the thermo-viscoplastic behavior of the metallic matrix and its interaction with the thermo-elastic fibers, and provides the overall constitutive behavior of metal matrix composite (MMC). This is further employed in a structural analysis to obtain the response of simply supported MMC laminated panels. Results are presented for unidirectional and antisymmetric angle-ply SiC/Ti panels, both geometrically perfect and imperfect. The elastic and viscoplastic material properties of Ti matrix are considered as temperature-dependent. The effect of mechanical pre-loading on the following thermal response is illustrated. The influence of the panel curvature, length-to-thickness ratio, amplitude of initial geometrical imperfections, lamination angle, and the effect of heating followed by cooling are investigated. Comparisons with the corresponding elastic solutions, obtained by neglecting the inelastic effects in the metallic matrix, are presented.