On a Question of Definition of Concept «Systemacity of Reforms» in the Context of a Social and Political Situation in Contemporary Russia

The article is devoted to the formation of the categorical apparatus in relation to the Russian reforms of the transition period. In this paper it’s analyzed the applicability of the concept of «systemic reforms» to the current socio-political transformations. In addition, the author traces the possibility of integrating different conceptual foundations of general systems theory in the consideration of the reform process (Parsons, Easton, Luhmann etc.)

Reform of the Russian System of Public Administration According to the System Theory

The article is devoted to a potential and actual implementation in the system of modern public management in Russia reforms that meet the criteria of system theory. From personnel management and social participation the author proceed to the consideration of the reform of the mechanisms of functioning of public administration system. It was made an attempt to apply to these the reforms models of systems theory, and it was drawn conclusions about the nature of the simulation changes

FE Simulation of the Stress-Strain State during Shear-Compression Testing and Asymmetric Three-Roll Rolling Process

A three-roll rolling process is a significant technique in the production of wire rod, round bars and hexagonal profiles for structural applications. Better mechanical properties of wire rod, round bars and hexagonal profiles can be achieved due to large plastic deformation by the three-roll rolling process. Asymmetric rolling is a novel technique characterized by a kinematic asymmetry linked to the difference in peripheral speed of the rolls, able to introduce additional shear strains through the bar thickness. Physical simulation of shear strain, which is similar to that occurring in asymmetric three-roll rolling process, is very important for design of technology of producing ultrafine grain materials. Shear testing is complicated by the fact that a state of large shear is not easily achievable in most specimen geometries. Application of the shear-compression testing and specimen geometry to physical simulation of asymmetric three-roll rolling process is discussed in the paper. FEM simulation and comparison of the stress-strain state during shear-compression testing and asymmetric three-roll rolling process is presented. The results of investigation can be used to optimize the physical simulation of asymmetric three-roll rolling processes and for design of technology of producing ultrafine grain materials by severe plastic deformation

Dynamic response of a cracked atomic force microscope cantilever used for nanomachining

The vibration behavior of an atomic force microscope [AFM] cantilever with a crack during the nanomachining process is studied. The cantilever is divided into two segments by the crack, and a rotational spring is used to simulate the crack. The two individual governing equations of transverse vibration for the cracked cantilever can be expressed. However, the corresponding boundary conditions are coupled because of the crack interaction. Analytical expressions for the vibration displacement and natural frequency of the cracked cantilever are obtained. In addition, the effects of crack flexibility, crack location, and tip length on the vibration displacement of the cantilever are analyzed. Results show that the crack occurs in the AFM cantilever that can significantly affect its vibration response

ESDA2008-59159 A RIGID PUNCH ON AN ELASTIC HALF-SPACE UNDER THE EFFECT OF FRICTION -A FINITE DIFFERENCE SOLUTION

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