Solodkaya N. Durability and optimization design of bar's construction, subjected to influence of aggressive medium

TThe thesis deals with development of calculation procedure regarding the girder members, which in the course of operation are subjected to influence not only load, but various aggressive mediums as well. New mathematical models, which describe the corrosive destruction process in girder under combined action of bending and tension (compression) were elaborated. An analytical relationship for geometrical characteristics of section in the care of availability of protective coating and analytical expressions for coefficients of modified stiffness matrix in solution of problems by finite elements method were deducted too. New problems in analysis of stressed-and-strained state, durability and optimum design of the girder structures under interaction with aggressive medium were solved.