ABSTRACT

Thermoelastic buckling of beam-columns is considered for various boundary conditions. The thermally-induced deflection of a beam in the pre-buckling state is assumed. The buckling loads are derived for various boundary conditions. Furthermore, the thermoelastic buckling behavior of rectangular and circular plates is discussed, and the fundamental equation systems are derived. Illustrative examples for thin plates are presented when the in-plane deformations are prescribed. Considered are: a simply supported rectangular plate subjected to a uniform temperature change, and an axisymmetrical problem of a circular plate with simply supported or clamped edge conditions. This chapter considers beam-columns as bodies which undergo buckling. It is assumed to be subjected to lateral loads under some support conditions. However, beam-columns treated are assumed to be subjected to both axial and lateral loads. In order to simplify the analytical procedure, one should assume that the coordinates y and z of the cross section of the beam are principal axes.