EXPERIMENTAL INVESTIGATIONS

• Hydrogen diagnostics
• Effect of Hydrogen on fatigue strength and delayed fracture:
  • Destruction of the friction surface
  • Destruction of rolling bearings
  • Destruction of the wheels of high-speed trains
  • Blades of gas turbine engines
  • High-strength fasteners in building, automotive and aviation
  • Materials of nuclear and thermonuclear power engineering

THEORETICAL INVESTIGATIONS

Continuum models of materials with microstructure

• Determination of the effective properties of heterogeneous materials in terms of microstructural parameters
• Description of structural transformations in a material at the evolution of microstructural parameters depending on external and internal thermomechanical influences
• Construction of models of continuum with a changing microstructure by means of consideration additional state parameters, the evolution of which is determined by balances with source terms modeling the material structural changes

Practical use

• Hydrogen degradation of metals and alloys
• Properties of biological tissues
• Creation of smart materials
• 4D printing

Models of gas diffusion in solids

• Theoretical description of the absorption of hydrogen from the environment into metals
• Modeling the degradation of titanium hydrides and deuterides

Practical use

• Hydrogen degradation of metals and alloys
• Safety in nuclear power
• Storage and transportation of deuterium

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• Fatigue modeling and fatigue life of metal structures
• Finite element modeling of cyclic microplasticity and fatigue fracture of metallic materials
• Hypersingular boundary integral equations for block structures with growing cracks, inclusions, and pores

Modeling and calculations of the resource of tubular structures:

Examples of tubular components

FE model of a welded joint of tubular components for calculating atigue life of a joint

Finite element modeling of cyclic microplasticity and fatigue fracture of polycrystalline metallic materials:

Simulation of fracture of samples under cyclic loading accounting for the structural inhomogeneity of the material

Simulation of fatigue fracture caused by crack initiation