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Wyszukujesz frazę "Generalized" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Propagation of plane waves in a rotating transversely isotropic two temperature generalized thermoelastic solid half-space with voids
    Autorzy:
    Bijarnia, R.
    Singh, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/265710.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    anizotropia
    termosprężystość
    odbicie
    anisotropy
    generalized thermoelasticity
    voids
    plane waves
    reflection
    reflection coefficient
    Opis:
    The paper is concerned with the propagation of plane waves in a transversely isotropic two temperature generalized thermoelastic solid half-space with voids and rotation. The governing equations are modified in the context of Lord and Shulman theory of generalized thermoelasticity and solved to show the existence of four plane waves in the x – z plane. Reflection of these plane waves from thermally insulated stress free surface is also studied to obtain a system of four non-homogeneous equations. For numerical computations of speed and reflection coefficients, a particular material is modelled as transversely isotropic generalized thermoelastic solid half-space. The speeds of plane waves are computed against the angle of propagation to observe the effects of two temperature and rotation. Reflection coefficients of various reflected waves are also computed against the angle of incidence to observe the effects of various parameters.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 285-301
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wave propagation in a micropolar transversely isotropic generalized thermoelastic half-space
    Autorzy:
    Gupta, R. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/955189.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    prędkość fazowa
    współczynnik tłumienia drgań sprężystych
    micropolar
    transversely isotropic
    generalized thermoelastic
    amplitude ratios
    Opis:
    Rayleigh waves in a half-space exhibiting microplar transversely isotropic generalized thermoelastic properties based on the Lord-Shulman (L-S), Green and Lindsay (G-L) and Coupled thermoelasticty (C-T) theories are discussed. The phase velocity and attenuation coefficient in the previous three different theories have been obtained. A comparison is carried out of the phase velocity, attenuation coefficient and specific loss as calculated from the different theories of generalized thermoelasticity along with the comparison of anisotropy. The amplitudes of displacements, microrotation, stresses and temperature distribution were also obtained. The results obtained and the conclusions drawn are discussed numerically and illustrated graphically. Relevant results of previous investigations are deduced as special cases.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2014, 19, 2; 247-257
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On discontinuties in thermoelastic plane waves without energy dissipation due to a thermo-mechanical shock
    Autorzy:
    Sarkar, N.
    Lahiri, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/265406.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    natężenie Greena-Naghdiego
    generalized thermoelasticity
    Green-Naghdi model
    thermoelastic half-space
    pulse function
    eigenvalue approach
    Opis:
    The present paper deals with the thermoelastic plane waves due to a thermo-mechanical shock in the form of pulse at the boundary of a homogeneous, isotropic thermoelastic half-space. The field equations of the Green- Naugdhi theory without energy dissipation for an thermoelastic solid in the generalized thermoelasticity theory are written in the form of a vector-matrix differential equation using Laplace transform techniques and then solved by an eigenvalue approach. Exact expressions for the considered field variables are obtained and presented graphically for copper-like material. The characteristic features of the present theory are analyzed by comparing these solutions with their counterparts in other generalized thcrmoelasticity theories.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 2; 503-519
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interaction due to mechanical source in generalized thermo microstretch elastic medium
    Autorzy:
    Singh, R.
    Kumar, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/955155.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    transformacja Laplace'a
    termosprężystość
    pole elektromagnetyczne
    generalized thermo-microstretch
    eigenvalue
    Laplace transform
    Hankel transform
    mechanical source
    Opis:
    The eigen value approach, following the Laplace and Hankel transformation has been employed to find a general solution of the field equations in a generalized thermo microstretch elastic medium for an axisymmetric problem. An infinite space with the mechanical source has been applied to illustrate the utility of the approach. The integral transformations have been inverted by using a numerical inversion technique to obtain normal displacement, normal force stress, couple stress and microstress in the physical domain. Numerical results are shown graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2014, 19, 2; 347-363
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interactions due to moving heat sources in generalized thermoelastic half-space using L-S model
    Autorzy:
    Sarkar, N.
    Lahiri, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/265642.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    źródło ciepła
    procedura Laplace'a
    generalized thermoelasticity
    L-S model
    elastic half-space
    moving heat sources
    eigenvalue approach
    Opis:
    A one-dimensional problem for a homogeneous, isotropic and thermoelastic half-space subjected to a moving plane of heat source on the boundary of the space, which is traction free, is considered in the context of Lord- Shulaman model (L-S model) of thermoelasticity. The Laplace transform and eigenvalue approach techniques are used to solve the resulting non-dimensional coupled equations. Numerical results for the temperature, thermal stress, and displacement distributions are represented graphically and discussed.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 815-831
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Generalized plane waves in a rotating thermoelastic double porous solid
    Autorzy:
    Pathania, Vijayata
    Kumar, Rajesh
    Gupta, Vipin
    Barak, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/27312403.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    rotacja
    fala płaska
    termosprężystość
    voids of type-I
    voids of type-II
    rotation
    plane waves
    homogeneous isotropic
    generalized thermoelasticity
    Opis:
    The propagation of plane waves in a rotating homogeneous, isotropic, thermoelastic solid with double porosity following Lord-Shulman’s theory of thermoelasticity has been investigated. It is assumed that the medium rotates about an axis normal to the surface with a uniform angular velocity. There may exist five coupled waves that evolved due to the longitudinal, transverse disturbance, voids of type-I and type-II, and temperature change in the medium. The secular equation for the model under consideration has been derived with the help of formal solutions and boundary conditions. The amplitude of displacements, temperature change and volume fraction fields for voids of type-I and type-II have also been computed analytically. Finally, numerical computations have been carried out for magnesium crystal material to understand the behavior of amplitude of phase velocity, penetration depth, specific loss, displacement components, temperature change, and volume fraction field due to type-I and type-II voids corresponding to the different rotation rates. Various graphs have been plotted to support the analytical findings. The study may be used in the development of rotation sensors, material design and thermal efficiency.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 4; 138--154
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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