Section I. Theoretical and applied mechanics

Section II. Fluid Mechanics

Section III. Solid mechanics

I-1. Analytical mechanics and dynamic [motion] stability

I-2. Mechanical system optimization and control

I-3. Vibrations of mechanical systems

I-4. Mechanics of systems of rigid and deformable bodies

I-5. Space flight mechanics

I-6. Mechanics of machines and robots

II-1. Theoretical and applied hydrodynamics

II-2. Theoretical and applied gas dynamics

II-3. Hydrodynamic instability and turbulence

II-4. Physicochemical fluid dynamics

II-4a. Combustion and detonation

II-5. Hydrodynamics of multiphase media

II-6. Hydromechanical problems in microgravity

III-1. Elasticity and viscoelasticity theory

III-2. Plasticity and creep theory

III-3. Waves in continua

III-4. Fracture and damage mechanics

III-5. Structural mechanics

III-6. Nonclassical models of solid mechanics

In the frame of the Congress four special sections will be organized:

IV-1. Biomechanics.

IV-2. Mechanical problems of natural processes

IV-3. Mechanics of technological processes(invited papers only)

IV-4. Teaching and history of mechanics

IV-5. Perspective computing technologies in mechanics

I-1. Analytical mechanics and dynamic [motion] stability

- Variational and integral principles.
- Realization of constraints.
- Dry friction.
- Integrability.
- Determinate chaos.
- Dynamic billiards.
- Ljapunov's first and second methods.
- Critical cases and resonance effects.
- Invariant sets.
- Bifurcation.

I-2. Mechanical system optimization and control

- Control of mechanical systems with a finite number of degrees
- Control of mechanical systems with distributed parameters
- Optimal control, controllability, observability, estimation of dynamic system state
- Control in the case of incomplete information
- Differential games
- Dynamics(motion) optimization, structure optimization, optimal stabilization

I-3. Vibrations of mechanical systems

- Vibrations of solid systems
- Vibrations and waves
- Asymptotic methods of studying vibrations

I-4. Mechanics of systems of rigid and deformable bodies

- Many-body systems
- Systems of bodies with elastic interactions
- Gyroscopic systems
- Rotary and oscillatory motions of a solid
- Rolling of a solid along the surface
- Solid motion in gravitational, electromagnetic and aerodynamic fields
- Body dynamics in fluids
- Dynamics of a liquid-filled body
- Orbital cable systems
- Rotation and orientation of celestial bodies
- Transformed systems
- Algorithmic presentation of the derivation of equations of motion

- Trajectories of natural and artificial celestial bodies.
- Control of the orbital motion of space vehicles.
- Uncontrolled motions of space vehicles.
- Motion of space vehicles relative to mass center.
- Orientation and stabilization of space vehicles.

I-6. Mechanics of machines and robots

- Kinematics and dynamics of machines and robots.
- Manipulation and mobile robots.
- Motion with allowance for external disturbances and vibrations.
- Vibration processes in machines, machines, robots.
- Increase of accuracy, productivity, reliability, self-sufficiency, manoeuvrability and other parameters.
- Planning of motion paths.
- Sensory systems and motion control.
- Microrobots, micromachines and systems.
- Mechanics of machines and robots of perspective applications including those for the motion in extreme and non-determined media on vertical surfaces irregularly arranged in space.

II-1. Theoretical and applied hydrodynamics

- Surface and internal waves. Stratified flows.
- Jets, traces and caverns. Impact of liquid and rigid masses.
- Motion in thin layers. Flows with lines of a three-phase contact.

- Dynamics of concentrated vortices.
- Geometric and topological methods of hydrodynamics
- Group analysis of hydrodynamic equations.
- Correctness of initial boundary-value hydrodynamic problems.

II-2. Theoretical and applied gas dynamics

- General problems and methods (theory, computation, experiments).
- Steady-state flows.
- Unsteady-state flows, aeroacoustics.
- Stability of flows.
- Flows with shock waves.
- Optimum contouring and control of nonstationary processes.
- Aerodynamics of wings, airplanes and perspective flight vehicles.
- Gas dynamics of channels, jets, gas machines and jet engines.

II-3. Hydrodynamic instability and turbulence

- Experimental study of stability, transition to turbulence and developed turbulent flows.
- Mathematical problems and theoretical study of hydrodynamic instability and turbulence.
- Direct numerical simulation of instability and turbulence.
- Models of turbulence.
- Stability and turbulence of compressible flows.
- Stability and turbulence of multiphase flows, flows with chemical reactions, flows under electromagnetic fields or other physical processes.
- Control of stability and turbulence.
- Acoustic noise in turbulent flows.
- Instability and vibrations of constructions in laminar and turbulent flows. Instability of discontinuity.
- Convective instability.
II-4. Physicochemical fluid dynamics

- Flows followed by physicochemical and heterophase processes with volumetric and surface reactions, nucleation, condensation, generation of aerosols, etc.
- Theoretical and applied magnetohydrodynamics.
- Theoretical and applied electrogasodynamics and electrohydrodynamics.
- Aerodynamics of weakly ionized gases.
- Hydrodynamics of magnetic fluids, polarized media, liquid crystals, media with electrically charged disperse phase etc.
- Surface hydrodynamic phenomena under complex physical effects (gravitational, electrophysical, thermal, concentration effects).

II-4a. Combustion and detonation

- Initiation of combustion
- Laminar and turbulent flames
- Detonation and supersonic combustion
- Transition of combustion to detonation
- Initiation and destruction of combustion
- Combustion and detonation of gas suspensions
- Explosion of gas clouds and large-scale fires
- Structure and stability of combustion process
- Applied problems of combustion and detonation
- Numerical simulation

II-5. Hydrodynamics of multiphase media

- Single inclusions in carrying medium (hydrogasodynamics and heat/mass transfer), their interactions, deformation of drops and bubbles.
- Dynamics of multiphase systems (micro and macromechanics, turbulence, shock waves, interaction with streamlined surfaces, suspension and sedimentation of particles, pseudo-liquifaction, etc.).
- Multiphase multicomponent filtration (mathematical physical and numerical simulation; theory and applications).

II-6. Hydromechanical problems in microgravity

- Experimental studies of convective flows and heat/mass transfer in space flight conditions and development of hydromechanical theoretical models for interpretation of observed phenomena.
- Gravitational and nongravitational convection mechanisms manifesting themselves in space flight conditions at rotation, vibrations, the gradient of gravitational field, angular acceleration etc.
- Convective and wave flows of non-Bussinesque and two-phase media, including the flows near the thermodynamic critical point.
- Media interface phenomena caused by capillary, thermocapillary and concentrational-capillary forces, including the flows in liquid bridges and floating zones and their stability.
- Three-dimensional stability of gravitational and nongravitational convective flows in closed regions. Terrestrial alternatives to microgravity conditions.
- Control of convection and convective stability in microgravity.

III-1. Elasticity and viscoelasticity theory

- Constitutive relations of thermoelasticity and thermoviscoelasticity at small and finite deformations and their experimental verification for homogeneous and composite materials.
- Mechanics of elastomers. Numerical analysis of viscoelastic structure elements under nonstationary thermoforce loading.
- Contact problems and stability problems of elastic and viscoelastic bodies under finite deformations
III-2. Plasticity and creep theory

- Plastic deformation theories for porous, damaged and granular media.
- Study and mathematical simulation of plastic properties of composite materials.
- Microstructural processes in plastic flows of inhomogeneous materials
- Kinetics of plastic deformation under interaction of slip and damage processes.
- Localization of plastic deformation
- Dependence of plastic material properties on loading and deformation conditions.
- The role of volumetric changes in plastic deformation processes.
- Creep under inhomogeneous and nonstationary temperature fields
- Finite visoelastic plastic deformations
III-3. Waves in continua

- Waves in elastic media. Dynamic problems in mechanics of brittle fracture. Dynamics of contact interaction of solids.
- Waves in inelastic media. Wave propagation in media with microstructure.
- Dynamic problems of damage. Continual fracture of elastoplastic media under dynamic loading.
III-4. Fracture and damage mechanics

- Theory of cracks, brittle and quasi-brittle fracture.
- Models and methods for fracture and damage simulation at micro-, meso- and macroscales.
- Experimental definition of fracture toughness.
- Scaling of fracture · Kinetics and dynamics of fracture.
- Fracture localization.
- Failure analysis of structures and natural objects
- Statistical aspects of fracture
III-5. Structural mechanics

- Mechanics of structures
- Thin-slab structures, plates and shells; composite material structures, rod systems.
- Structural mechanics, strength , stability, vibrations.
- Computational mechanics, aerohydroelasticity of structures.
III-6. Nonclassical models of solid mechanics

- Theories, methods and mathematical models for micro- and macrokinetics of composite structures.
- Mathematical models and methods for prediction and definition of physical-mechanical, strength and thermal characteristics of structural and functional composites with complicated microstructure.
- Mathematical modeling of damage accumulation under elastic and inelastic deformation, mathematical modeling of fracture in composite structures.
- Computational methods and computer modeling of deformation and fracture in composite structures

IV-I. Biomechanics.

- Biorheology, blood circulation and other biological liquids.
- Breathing, muscular contraction, work of gastrointestinal tract and other internal organs.
- Strength of biological objects.
- Locomotion of human beings and animals.
- Mechanics of plants, mechanics of growth and development.
- Applications to medicine (cardiology, pulmonology, traumatology and orthopedics, stomatology, etc.) biotechnology, ergonomics and ecology.
- Biomechanics of bone system.
- Biomechanics in sports.
IV-2. Mechanical problems of natural processes

- Mechanical problems of geophysics, seismology, geomechanics, planetology, glaciology, engineering geology, astrophysics, cosmology, etc.
IV-3. Mechanics of technological processes(invited papers only)

IV-4. Teaching and history of mechanics

IV-5. Perspective computing technologies in mechanics