Search Results - "Burago, N. G."

Explicit–Implicit Schemes for Calculating the Dynamics of Elastoviscoplastic Media with a Short Relaxation Time by Golubev, V. I., Nikitin, I. S., Burago, N. G., Golubeva, Yu. A.

“…We consider the dynamic behavior of elastoviscoplastic media under the action of an external load. For the general case of a nonlinear viscosity function…”
Get full text

Hybrid numerical method with adaptive overlapping meshes for solving nonstationary problems in continuum mechanics by Burago, N. G., Nikitin, I. S., Yakushev, V. L.

“…Techniques that improve the accuracy of numerical solutions and reduce their computational costs are discussed as applied to continuum mechanics problems with…”
Get full text

Natural Frequencies and Modes of Longitudinal and Torsional Vibrations in Bars with Variable Cross Section by Nikitin, I. S., Burago, N. G., Nikitin, A. D.

“…The problem of determining the frequency and mode of natural longitudinal or torsional vibrations for a bar of variable cross section is considered on the…”
Get full text

Damage and Fatigue Fracture of Structural Elements in Various Cyclic Loading Modes by Nikitin, I. S., Burago, N. G., Nikitin, A. D.

“…On the basis of the previously suggested multimode two-criterion model of fatigue fracture, a method is proposed for calculating the origin and development of…”
Get full text

Multimode Model for Fatigue Damage Development by Nikitin, I. S., Burago, N. G., Zhuravlev, A. B., Nikitin, A. D.

“…A multimode kinetic model for the development of damage under cyclic loading is proposed to describe the development of fatigue failure process. To determine…”
Get full text

Matrix-Free Conjugate Gradient Implementation of Implicit Schemes by Burago, N. G., Nikitin, I. S.

“…Matrix-free conjugate gradient algorithms are described as applied to large systems of algebraic equations arising in the implementation of implicit schemes…”
Get full text

Mathematical Model and Algorithm for Calculating Pressing and Sintering by Burago, N. G., Nikitin, I. S.

“…On the basis of the thermodynamic approach, the constitutive relations for processes of pressing and sintering of powder composites have been obtained. A…”
Get full text

Continuum Model and Method of Calculating for Dynamics of Inelastic Layered Medium by Burago, N. G., Zhuravlev, A. B., Nikitin, I. S.

“…Mathematical modeling of the processes of wave propagation in a layered medium with viscoplastic slip conditions at contact boundaries was carried out, also as…”
Get full text

A study of different modes of fatigue fracture and durability estimation for compressor disks of gas-turbine engines by Burago, N. G., Zhuravlev, A. B., Nikitin, I. S., Yakushev, V. L.

“…Various criteria of multiaxial fatigue fracture are studied for low-cycle fatigue (LCF); their generalizations are proposed for a very-high-cycle fatigue…”
Get full text

Numerical Modeling of Fatigue Fracture Based on the Nonlocal Theory of Cyclic Damage by Burago, N. G., Nikitin, I. S., Nikitin, A. D., Stratula, B. A.

“…Based on a multimode model of fatigue failure, a numerical method for calculating the kinetics of fracture, nucleation, and development of fatigue quasi-cracks…”
Get full text

Improved model of a layered medium with slip on the contact boundaries by Burago, N.G., Nikitin, I.S.

“…The continuum equations of a layered medium with slip taking into account second-order terms with respect to a small parameter of the layer thickness are…”
Get full text

Lifetime of disks of variable thickness with anisotropy of fatigue properties taken into account by Burago, N. G., Nikitin, I. S., Yushkovskii, P. A.

“…A generalization of well-known criteria for multiaxial fatigue fracture to the case of titanium alloys with anisotropic fatigue properties is proposed. The…”
Get full text