Miroshnikov V. Forecasting of creep and long time strength of fire-resistant elements of designs

The thesis is devoted to forecasting of a creep and the application of hierarchical model is shown to long duration strength of refractory elements of designs in a fragile condition On an example dinas: 1. At refinement of size of temperature of transition of a material from from a fragile condition; 2.At definition of the characteristics of a material, including fragile strength and limiting deformation of a creep; 3.At selection of a measure of a material in conditions of a creep; 4. At an evaluation of a condition at two hierarchical levels with use of a method finit elements; 5. By selection of the computational scheme of a design, the load is simulated with application of the mechanics-computer consulting model to outcomes of full scale full-scale experiment.The received estimation of the parametersof state has allowed to recommend during its operation to supervise symmetry of conditions in adjacent with a heating wall of coke oven chambers and to not exceed temperature 1300 C with the purpose ofm aintenance of size of resouree 20000hr