ABSTRACT

This chapter states the basic points of the analysis of the SSS in elastic systems subjected to temperature impact. The impact of temperature upon a statically determinate structure does not induce constraint reactions, and the thermal stresses usually are not significant. At the same time, it is thermal stresses which may cause the failure of statically indeterminate structures. The calculation of an elastic body’s SSS in the general case is based on the generalized Hooke’s law with account for temperature changes. If only temperature acts upon statically determinate system, the constraint reactions remain zero because, in such a system, these reactions are determined by loads from equations of statics, whereas the loads are assumed to be zeroth. The force method can be completed for analysis of a statically indeterminate system exposed to temperature changes.