The kinetics of the process of repeated elastic-plastic straining of a polycrystalline solid

Chernyak, N. I.; Гаврилов, Д. А.

doi:10.1007/bf00895843

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…And in late 2005, the chief of the Russian General Staff stated: "All the world develops according to the outline: about 60 percent is spent on procurement, research and development; and about 30-40 percent on salaries and matters connected with logistics and combat training of forces." 33 But even a cursory glance at international practice (see Figure 5) casts grave doubt on the seriousness with which this goal is pursued in practice by Russia's high-ranking officials, even on the priorities they set forth, and on the quality of information they use in defense management-related decisionmaking.…”

Section: Actors and Goalsmentioning

confidence: 99%

Russian military expenditure: What's behind the curtain?

Zatsepin¹

2007

EPSJ

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The article views the Russian defense budget as a representation of national strategic interests, priorities, and policies. Although Russia conforms to the United Nations' statistical standard for reporting military expenditure, several budget categories are hidden in other parts of the federal budget. Transparency in defense spending has been decreasing steadily. The budgeting process itself is cumbersome and opaque. Parliamentary control over the budget process and control over the execution of defense appropriations are limited. Importantly, frequent changes in the system of national accounting impede historical comparisons. The study finds that the low quality of defense management, dominated by members of the military-industrial complex, is a major problem locking Russian defense policy in an institutional trap.

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Section: Actors and Goalsmentioning

confidence: 99%

Russian military expenditure: What's behind the curtain?

Zatsepin¹

2007

EPSJ

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“…To overcome the difficulties associated with the detailed local approaches, many homogenized global attempts (Gutzer et al, 1995;Papailiou, 1997) have been proposed over the years to develop a more realistic and practical model for slacking cables subjected to dynamic bending loads. Gutzer et al (1995) modeled the stranded steel cables by adopting a Masing model (Chernyak and Gavrilov, 1968) that was originally developed for one-dimensional cyclically stabilized hysteretic behavior. The Masing model consists of one or more parallel Jenkin (1922) sub-models that are made of a spring and viscous damping models in series.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear FE-based investigation of flexural damping of slacking wire cables

Zhu

Meguid

2007

International Journal of Solids and Structures

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The flexural damping of wire cable due to the flexural hysteresis influences the dynamic behavior of slacking wire cables significantly. However, the details of the local model, accounting for the flexural hysteresis between the wire strands, are quite challenging to include in large-scale engineering applications. This paper addresses these difficulties by modeling the flexural damping of slacking wire cables using homogenized Rayleigh damping. By using the nonlinear finite element method and high-speed imaging technique, three aspects of the work were examined. First, the mechanical properties of the slacking cable were identified experimentally. Second, a sample cable was fixed at one end and allowed to vibrate freely at the other end. The shapes of the vibrating cable were captured by a high-speed digital camera and processed by photogrammetry. The cable demonstrated a high flexural damping at zero tension and its damping was measured to be as high as 37.7% of the critical damping. Third, the cable was modeled and analyzed using our newly developed nonlinear curved beam element with the Rayleigh damping. The finite element predictions of the cable motion agree well with the experimental measurement. These predictions demonstrate that the new element is capable of describing the dynamic response of the cable and that the Rayleigh damping is sufficient to model the flexural damping of slacking wire cables.

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The kinetics of the process of repeated elastic-plastic straining of a polycrystalline solid

Cited by 2 publications

References 3 publications

Russian military expenditure: What's behind the curtain?

Russian military expenditure: What's behind the curtain?

Nonlinear FE-based investigation of flexural damping of slacking wire cables

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