نتایج جستجو برای: hollow cylinder

تعداد نتایج: 35835  

2013
R. C. Batra

We analytically analyze finite plane strain twisting deformations of a hollow cylinder made of an isotropic and inhomogeneousMooney-Rivlinmaterial withmaterial moduli varying in the radial direction. The cylinder is deformed by applying either tangential tractions on the inner surface and tangential displacements on the outer surface or vice versa. The radial variation of the moduli is found th...

2016
G. COMENETZ

7. The essence of the method of characteristics is the following. Suppose the flow is to be determined in the channel of Fig. 4 and the flow is known up to the line I. Select points A and B on line I. At these points the velocity, the direction of flow, etc., is known. Thus characteristics Ca and Cb can be drawn. Equation (17) used along the two different characteristics gives two equations for...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
a. ghorbanpour arani e. haghparast z. khoddami maraghi s. amir

in this research, static stresses analysis of boron nitride nano - tube reinforced composite (bnntrc) cylinder made of poly - vinylidene fluoride (pvdf) subjected to non - axisymmetric thermo - mechanical loads and applied voltage is developed. the surrounded elastic medium is modelled by pasternak foundation. composite structure is modeled based on piezoelectric fiber reinforced composite (pfr...

Journal: :international journal of civil engineering 0
j. jalili international institute of earthquake engineering and seismology, geotechnical research center, room 304, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran m. k. jafari international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran a. shafiee international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran j. koseki geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan t. sato geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan

a series of tests and also numerical analyses were conducted to explore the mechanical behavior of a mixture of coarse gravelsize particles floating in a matrix of silt, sand or clay. the research is a step forward in an ongoing investigation on behavior of composite clay, which is used as the core material of some large embankment dams all over the world. after providing the reader with an ove...

An exact study on temperature field in a hollow cylinder of finite length which is influenced by a surrounding with harmonic boundary condition is presented. To simulate an idealized situation, it is supposed that the cylinder is homogeneous and isotropic with physical properties independent of temperature and time. Here we impose a harmonic boundary condition on the external surface of the fin...

In this paper, transient solution of two dimensional asymmetric thermal and mechanical stresses for a hollow cylinder made of piezoelectric material is developed. Transient temperature distribution, as function of radial and circumferential directions and time with general thermal boundary-conditions, is analytically obtained, using the method of separation of variables and<br...

Journal: :Physical chemistry chemical physics : PCCP 2014
Long Van Duong Hung Tan Pham Nguyen Minh Tam Minh Tho Nguyen

We determined the geometries and chemical bonding phenomena of the B27 system in its dicationic, cationic, neutral, anionic and dianionic states using DFT computations. In both cationic and neutral states, the triple ring tubular forms correspond to the lowest-energy isomers, especially in B27(+). The cation B27(+) represents the first stable hollow cylinder having a triple ring among the pure ...

2017
Magnus Hedlund Tobias Kamf Juan de Santiago Johan Abrahamsson Hans Bernhoff

A hollow cylinder flywheel rotor with a novel outer rotor switched reluctance machine (SRM) mounted on the interior rim is presented, with measurements, numerical analysis and analytical models. Practical experiences from the construction process are also discussed. The flywheel rotor does not have a shaft and spokes and is predicted to store 181 Wh/kg at ultimate tensile strength (UTS) accordi...

R Panchal S Sharma,

In this paper the radial deformation and the corresponding stresses in a functionally graded orthotropic hollow cylinder with the variation in thickness and density according to power law and rotating about its axis under pressure is investigated by using Seth's transition theory. The material of the cylinder is assumed to be non-homogeneous and orthotropic. This theory helps to achieve better ...

M Jabbari M Shokouhfar,

In this paper, an analytical solution for computing the linear plastic stresses and critical pressure in a FGM hollow cylinder under the internal pressure due to non-Axisymmetric Loads is developed. It has been assumed that the modulus of elasticity was varying through thickness of the FGM material according to a power law relationship. The Poisson's ratio was considered constant throughout the...

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