Fundamental research

Mathematical modelling of forming processes of multycomponent polymeric composition materials by using of the directed physical and chemical modification

The important is decided|solve| folk|national| economic task|tsk|, related to development|elaboration| of scientific|science| bases|backing| of the directed|ducted| application  of physical|physics| modification as an ultrasonic|ultrasound| action|act| in technology|technicology| of receipt of wide spectrum of wares from much component|reductant| epoxy|  | polymers, directed|ducted| on the increase|rise| of efficiency  and achievement of resourse| and energy| economies|nest-egg| at their receipt.

Development of theoretical foundations of designing diffractive optical elements and systems based on them.

We solve the scientific problem of developing the theoretical foundations of designing diffractive optical elements and systems based on them. Based on the research results are as follows:
An approximate equation of Fresnel diffraction, which is used in the design of optical systems based on diffraction theory.

Creation of the generalized discrete model of processes of forming of polymeric wares taking into account the tensely-deformed state of structural elements of machines at the complex thermal-force stress.

The universal discrete mathematical model of unisothermal movement of polymeric environments in ducting of processing equipment in the processes of melting, temperature homogenization and forming taking into account influencing of deformation of structural elements of equipment, being based on equalizations of mechanics of continuous environments is developed. Realization of model is carried out on the base of moment chart of method of finite elements with the use of 9-point element.

Development of a new phenomenological models and general exploitation resource prediction method for construction elements made of composite materials in consideration of damage parameters.

There are developed new generalizing constitutive equation and phenomenological models, which describe dispersed damage accumulation kinetics in (CM) at macrocrack initiation stage in a case of complex technological and exploitation loading. There is performed a complex of experimental-theoretical researches to define applicability of developed dispersed fracture model and appropriated criteria in a case of static and programmed low-cycle loading for plane stress state.

Investigation of ions of heavy metal extraction from waste waters mechanisms by magnetocontrolled biosorption

Theoretical models which feature mechanisms of extraction of ions of heavy metals are offered and developed. New low-cost methods of manufacturing stable magnetosensitive complexes barm/magnetic nanoparticles with the refined properties are developed. Essentially new knowledge and the facts concerning mechanisms of extraction of ions of heavy metals from fluids by means of magnetocontrolled biosorption which allow to optimize considerably production engineering of purification of sewage from ions of heavy metals in a velocity regime are gained.....

Thermomolecular energetics: investigation of thermodynamic functions and hysteresis nature in the “compression-expansion” processes of the normal and configurational clathrates

As the result of the work the conception synthesis of repulsive clathrates hysteresis nature is received with subject to the theoretical and experimental researches: the hysteresis experimental data and theoretical concepts for the functionality compression-expansion processes are compared. The recommendations for the repulsive clathrate components choice are produced with subject to their functionality – accumulation, dissipation or energy transformation.

Simulation of processes of phase-to-phase interaction at an arc welding and a building-up welding under a fluxing stone

It is shown that the evaluation of metallurgical properties of flux in electric arc welding in most models are limited to consideration of the slag-metal reactions, which contradicts the physical model of the electric submerged arc welding. The existence of the gas phase, and its influence on chemical processes at the interface is ignored.

Micro-and nanostructured processes in the surface layers of the structural alloys under conditions of the high-energy processing.

The complex of the experimental studies which enabled us to establish the influence of the ultrasonic shock treatment (USST) regimes in the air, in an inert atmosphere and liquid nitrogen on microhardness, fine microstructure, phase and chemical composition of the aluminum alloy D16 and Ti6Al4V titanium alloy surface layers  was performed.

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