4_2008_sen_12

Title of the article

MECHANICS OF DEFORMATION AND STRUCTURE FORMATION IN COMPOSITES BASED ON METAL-POLYMER DISPERSED SYSTEMS
Authors

Ryabchenko T.V., the V.A. Belyy Institute of Mechanics of Metal-Polymer Systems of the NAS of Belarus, Gomel

Kovtun V.A., the V.A. Belyy Institute of Mechanics of Metal-Polymer Systems of the NAS of Belarus, Gomel

Pleskachevsky Yu.M., corresponding member of the NAS of Belarus, the A.V. Lykov Heat and Mass Transfer Institute of the NAS of Belarus, Minsk
In the section MECHANICS OF COMPOSITES
Year 2008 Issue 4 Pages 58-62
Type of article RAR Index UDK 621.762:539.3 Index BBK  
Abstract

The deformation processes of metal-polymer copper-polytetrafluoroethylene powder system have been investigated by computer methods. The structural models have been developed, the values of displacements and stresses have been defined. Strain-induced variations in the zones of contact interactions of dispersed components of powder systems are shown under the influence of a distributed compressive load. Microstructural investigation results of metal-polymer powder systems and their composite materials are presented.
Keywords metal-polymer copper-polytetrafluoroethylene powder system, structural models, composite materials
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Bibliography
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4_2008_sen_11

Title of the article

INVESTIGATION OF INITIAL DEFLECTION FLLLED RIBBED SHELL ON CRITICAL STRESSES OF GENERAL STABILITY LOSS
Authors

Iskenderov R.A., Ph.D. in Physics and Mathematics, the Azerbaijan University of Architecture and Construction, Baku, Azerbaijan
In the section MECHANICS OF DEFORMED SOLIDS
Year 2008 Issue 4 Pages 56-57
Type of article RAR Index UDK 539.37 Index BBK  
Abstract

In the paper the influence of initial deflection of filled cylindrical shell strengthened by a regular system of longitudinal ribs on critical stresses of general stability loss is investigated. The mixed energetic method and nonlinear equation of the strain compatibility is assumed as a basis of analysis. The curve of equilibrium states whose maximum corresponds to critical value of the load is constructed.
Keywords filled cylindrical shell, longitudinal ribs, mixed energetic method
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Bibliography
  • Amiro I.Ya., Zarutsky V.A. Teorijarebristyhobolochek. Metody rascheta obolochek [The theory of ribbed shells. Methods for calculating the skins]. Kiev: Nauk. dumka, 1980. 367 p.
  • Pasternak P.L. Osnovy novogo metoda rascheta fundamentov na uprugom osnovanii pri pomoshhi dvuh kojefficientov posteli [Fundamentals of the new method of calculation of foundations on an elastic base with two coefficients of subgrade reaction]. Moscow, Stroyizdat, 1954. 56 p.
4_2008_sen_9

Title of the article

DYNAMICS OF CIRCULAR METAL-POLYMERIC PLATES ON EN ELASTIC FOUNDATION. PART I. FREE VIBRATIONS
Authors

Pleskatshevsky Y.M., A.V. Lykov Heat And Mass Transfer Institute of the NAS of Belarus, Minsk, the Republik of Belarus

Starovoitov E.I., D.Sc. in Eng., the Belarusian State University of Transport, Gomel, the Republik of Belarus

Leonenko D.V., the Belarusian State University of Transport, Gomel, the Republik of Belarus
In the section MECHANICS OF DEFORMED SOLIDS
Year 2008 Issue 4 Pages 48-51
Type of article RAR Index UDK 539.4 Index BBK  
Abstract

The axisymmetrical free vibrations of elastic circular three-layer metal-polymeric plate on en elastic foundation are explored. Reaction of foundation was described on the base of Winkler’s model. For the kinematics description asymmetrical on the thickness of package accepted hypothesises broken normal. Filler is light. Analytical deciding a problem are received and their numeric analysis are conducted.
Keywords axisymmetrical free vibrations, Winkler’s model, elastic circular three-layer metal-polymeric plate
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Bibliography
  • Pleskachevsky Y.M., Starovoytov E.I., Yarovaya A.V. Dinamika metallopolimernyh sistem [Dynamics of Metal-Polymer Systems]. Minsk, Bel. Navuka, 2004. 386 p.
  • Pleskachevsky Y.M. [et al.] Metallopolimernaja plastina na uprugom osnovanii. Ch. 1. Ravnomernaja nagruzka [Metal-polymer plate on an elastic foundation. Part 1. Uniform Load]. Ves. Nac. akad. Navuk Belarusi. Ser. fiz.-tjehn. navuk [Bulletin of the NAS of Belarus. Edition of Physics and Engineering], 2005, no. 3, pp. 39-43.
  • Pleskachevsky Y.M. [et al.] Metallopolimernaja plastina na uprugom osnovanii. Ch. 2. Lokal'naja nagruzka [Metal-polymer plate on an elastic foundation. Part 2. Local load]. Ves. Nac. akad. Navuk Belarusi. Ser. fiz.-tjehn. navuk [Bulletin of the NAS of Belarus. Edition of Physics and Engineering], 2005, no. 4, pp. 33-37.
  • Najmushin V.N., Husainov V.R. Uravnenija i klassifikacija svobodnyh i sobstvennyh kolebanij simmetrichnyh po tolshhine trehslojnyh plastin s transversal'no-mjagkim zapolnitelem [Equations and classification of free and natural vibrations symmetrical in thickness sandwich plates with transversal-soft filler]. Mehanika kompozic. materialov i konstrukcij [Mechanics of composite. materials and constructions], 2001, vol. 7, no. 3, pp. 310-317.
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  • Gromyko Yu.V. Svobodnye kolebanija trehslojnoj kol'cevoj uprugoj plastiny [Free oscillations of a three-layer elastic ring plate]. Materialy, tehnologii, instrumenty [Materials, technologies and tools]. 2001, vol. 6, no. 4, pp. 9-12.
  • Starovoytov E.I., Yarovaja A.V., Leonenko D.V. Deformirovanie trehslojnyh jelementov konstrukcij na uprugom osnovanii [Deformation of sandwich structural elements on elastic foundation]. Moscow, FIZMATLIT, 2006. 379 p.
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4_2008_sen_10

Title of the article

IMPACT STRAINING OF A COMPOSITE BEAM, COUPLED WITH ELASTIC FOUNDATION
Authors

Vorobyov S.A., the Belarusian State University of Transport, Gomel, the Republik of Belarus
In the section MECHANICS OF DEFORMED SOLIDS
Year 2008 Issue 4 Pages 52-55
Type of article RAR Index UDK 539.3 Index BBK  
Abstract

Kinematical parameters of free transient vibrations of a composite beam, caused by the action of an immediate point impulse on the surface of the upper layer, are examined. Material elastic imperfections of the layers are taking into account on the basis of complex elastic modulus. Span of the beam between the rigid fixed bearings on its butts is situated on elastic inertialess foundation. Influences of the internal friction and foundation on the kinematical parameters of the beam are analysed.
Keywords free transient vibrations, composite beam, rigid fixed bearings
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Bibliography
  • Vorobyov S.A. Chastotnye harakteristiki trehslojnogo sterzhnja s uchetom vnutrennego trenija na osnove vjazkoj i kompleksnoj modelej [The frequency characteristics of a three-layer bar with a view of the internal friction and viscous on the basis of complex models]. Materialy, tehnologii, instrumenty [Materials, technologies and tools], 2007, vol. 12, no. 2, pp. 12-16.
  • Pleskachevskiy Yu.M., Starovoytov E.I., Yarovaya A.V. Deformirovanie metallopolimernyh sistem [Deformation of metal-polymer systems]. Minsk, Bel. navuka, 2004. 342 p.
  • Pleskachevskiy Yu.M., Starovoytov E.I., Yarovaya A.V. Dinamika metallopolimernyh sictem [Dynamics of metal-polymer systems]. Minsk, Bel. navuka, 2004. 386 p.
4_2008_sen_8

Title of the article

A PROBLEM OF FORCED AXIALLY-SYMMETRIC VIBRATIONS OF LIQUID-FILLED CYLINDRICAL SHELL FASTENED AND LOADED WITH AXIAL COMPRESSING FORCES
Authors

Latifov F.S., D.Sc. in Physics and Mathematics, the Institute of Mathematics and Mechanics of NAS of Azerbaijan, Baku

Salmanov O.Sh., the Institute of Mathematics and Mechanics of NAS of Azerbaijan, Baku
In the section MECHANICS OF DEFORMED SOLIDS
Year 2008 Issue 4 Pages 45-47
Type of article RAR Index UDK 539.37 Index BBK  
Abstract

Problem of forced axially-symmetric vibrations of liquid-filled cylindrical shells reinforced by a cross system of ribs and loaded with axial compressing forces is investigated. Using the equation of motion of structurally-orthotropic shell, liquid and contact permeability conditions the formulas for finding permutations of the points of a liquid-folled shell loaded by axial compressing forces and reinforced by a cross system of liquid-folled ribs are obtained. Formulas for simplication fending resonance frequencies of vibrations of the considered system are also obtianed as well.
Keywords axially-symmetric vibrations, structurally-orthotropic shell, liquid-folled shell
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Bibliography
  • Amiro I.Ya., Zarutsky V.A. Teorija rebristyh obolochek. Metody rascheta obolochek [The theory of ribbed shells. Methods for calculating of shells]. Kiev, Nauk. dumka, 1980. 367 p.
  • Latifov F.S. Kolebanija obolochki s uprugoj i zhidkoj sredoj [Fluctuations in the shell with an elastic and a liquid medium]. Baku, Jelm, 1999. 164 p.
  • Volmir A.S. Obolochki v potoke zhidkosti i gaza. Zadachi gidrouprugosti [Casing in liquid and gas flow. Tasks of hydroelasticity]. Moscow, Nauka, 1979. 320 p.

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