Department of Theory of Plasticity
Scientific Fields of Research
- Fundamental problems. Constitutive equations
in solid mechanics. Criteria of fracture and unstability.
- Theory of plasticity based on the conception of the yield surfaces
with the singular points (singular plasticity). Thermodynamics of the plastic
deformation. Phenomenon of the delay of yielding. Theory of plasticity
of the composites on the basis of mechanical characteristics of the components.
Electroplastical effect.
- Creep theory. Short-time (high temperature) creep. Hardening theory
based on involving integro differential parameters. Vibrocreep.
- Heredity (viscoelasticity) . Modernized Volterra's theory. Resolvental
operators. Effective analysis of experimental data. Non-linear theory of
heredity. Deformation of solids with mechanical characteristics, depending
on stress state.
- Linear fracture mechanics (theory of cracks) of anisotropic, nonhomogeneous
and porous solids. Theory of the long-time strength under the creep. The
influence of the history of deformation.
- Stability. Supplimentation of the conception continuative loading.
Equiactive bifurcation criterion. High order bifurcations. Stability within
the creep. Pseudobifurcation. Stability of spatial bodies. Stability within
the selfgravitation.
- Applied problems of solid mechanics: methods
for solving boundary and initial problems. Concrete solutions. Practical
recommendations.
- General methods of solution. Methods of solving boundary value problems
based on the theory of comlex variation functions and integral transformations
in the theory of elasticity and heredity. Common method of decomposition
on parameter of hardening in the theory of plastic flow and method of characteristic
for the hardening rigid-plastic body, and for the ideallyplastic solids
which resist different to the tension and comression. Using of variational
priciples. Method of elastic equivalent in the solution of problems of
stability for the composed mediums.
- Solving of the number of nonclassical contact problems.
- Statistic and dynamical problems of plasticity. Rigid-plastic analysis.
- Potential method in creep and relacsation materials problems.
- Boundary problems with the taking into account of the eletroplastical
effect.
Last updated on June 30, 1997.
Responsible for the information: Khvostunkov
Kirill Anatol'evich Ph. D.