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    Wyświetlanie 1-12 z 12
    Tytuł:
    Two-dimensional analysis of functionally graded thermoelastic microelongated solid
    Autorzy:
    Sharma, Anchal
    Ailawalia, Praveen
    Powiązania:
    https://bibliotekanauki.pl/articles/27312404.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    stopniowanie funkcjonalne
    termoelastyczność
    odkształcenie
    functionally graded
    thermoelastic
    normal mode analysis
    microelongation
    Opis:
    The present research focuses on two-dimensional deformation in a functionally graded thermoelastic micro-elongated medium. It is supposed that the non-homogeneous properties (thermal and mechanical) of FGM are in the x-direction. The normal mode technique is used to acquire the analytic expression for displacement components, stress, micro-elongation and temperature. The cause and effect relationship of non-homogeneity and physical quantities is shown through graphical results.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 4; 155--169
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of waves generated in transversely isotropic micropolar generalized thermoelastic half space under temperature dependent properties
    Autorzy:
    Gupta, R. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/264335.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    propagacja fal
    termoelastyczność
    naprężenia
    micropolar
    transversely isotropic
    generalized thermoelastic
    amplitude ratios
    Opis:
    The present study deals with the propagation of waves in a transversely isotropic micropolar generalized thermoelastic material possessing temperature dependent elastic properties. After developing the solution for LS, GL and CT theory, the phase velocities and attenuation quality factor have been obtained. The expressions for amplitudes of stresses, displacements, microratation and temperature distribution have been derived and computed numerically. The numerically evaluated results have been plotted graphically. Some particular cases of interest have also been obtained.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 4; 53-65
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of deflection in visco-thermoelastic beam resonators subjected to harmonic loading
    Autorzy:
    Chopra, Deepti
    Singh, Prince
    Powiązania:
    https://bibliotekanauki.pl/articles/2174186.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termoelastyczność
    transformata Laplace'a
    belka
    obciążenie
    visco-thermoelastic
    beam
    loading
    Laplace transform
    Opis:
    This paper analyses the transverse deflection in a homogeneous, isotropic, visco-thermoelastic beam when subjected to harmonic load. The ends of the beam are considered at different boundary conditions (both axial ends clamped, both axial ends simply supported and left end clamped and right end free). The deflection has been studied by using the Laplace transform. Numerical computation of analytical expression of deflection obtained after Inverse Laplace transform has been done using MATLAB software. The graphical observations have been discussed under various boundary conditions for different values of time and length. The above work has applications in design of resonators.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 2; 35--52
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A general study of fundamental solutions in aniotropicthermoelastic media with mass diffusion and voids
    Autorzy:
    Chawla, Vijay
    Kamboj, Deepmala
    Powiązania:
    https://bibliotekanauki.pl/articles/1839675.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    dyfuzja masy
    źródło ciepła
    general solution
    fundamental solution
    thermoelastic
    voids
    mass diffusion
    Opis:
    The present paper deals with the study of a fundamental solution in transversely isotropic thermoelastic media with mass diffusion and voids. For this purpose, a two-dimensional general solution in transversely isotropic thermoelastic media with mass diffusion and voids is derived first. On the basis of the obtained general solution, the fundamental solution for a steady point heat source on the surface of a semi-infinite transversely isotropic thermoelastic material with mass diffusion and voids is derived by nine newly introduced harmonic functions. The components of displacement, stress, temperature distribution, mass concentration and voids are expressed in terms of elementary functions and are convenient to use. From the present investigation, some special cases of interest are also deduced and compared with the previous results obtained, which prove the correctness of the present result.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 4; 22-41
    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:
    Weak formulation study for thermoelastic buckling analysis of thick laminated cylindrical shells
    Autorzy:
    Kewei, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/264937.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    weak formulations
    buckling analysis
    laminated cylindrical shells
    thermoelastic
    Hamilton canonical equation
    laminowanie
    równanie Hamiltona
    termoelastyczność
    Opis:
    Weak formulations of mixed state equations of closed laminated cylindrical shells are presented in the Hamilton System. The Hamilton canonical equation of closed cylindrical shell is established. By means of applying the transfer matrix method and taking the advantage of Hamiltonian matrix in the calculation, a unified approach and three-dimensional thermoelastic solutions are obtained for the buckling analysis of closed trick laminated cylindrical shells. All equations of elasticity can be satisfied and all elastic constants can be taken into account. Numerical results are given to compare with those of FEM calculated using SAP5.The principle and method suggested here have clear physical concepts. The equations and boundary conditions proposed in this paper are weakened. The solutions and results given here may serve as a benchmark for other numerical procedures.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2015, 20, 3; 461-470
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two dimensional deformation of a multilayered thermoelastic half-space due to surface loads and heat source
    Autorzy:
    Vashishth, A. K.
    Rani, K.
    Singh, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/265888.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    źródło ciepła
    obciążenia powierzchniowe
    termoelastyczność
    multilayered half-space
    thermoelastic
    propagator matrix
    surface loads
    heat source
    Opis:
    This article deals with a 2-D problem of quasi-static deformation of a multilayered thermoelastic medium due tovsurface loads and heat source. The propagator matrix is obtained for the multilayered formalism of thermoelastic layers. Analytical solutions, in terms of the displacements, stresses, heat flux and temperature function, are obtained for normal strip and line loads, shear strip and line loads and strip and line heat sources. Numerical computation of the obtained analytical expressions is also done. The effects of layering have been studied. For the verification of the results, results of earlier studies have been obtained as particular cases of the present study.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 1; 177-197
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reflection and transmission in non-local couple stress micropolar thermoelastic media
    Autorzy:
    Gupta, Deepa
    Malik, Sangeeta
    Kumar, Krishan
    Sharma, Raj Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/2174196.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    liczba falowa
    para
    non-local
    thermoelastic solid
    amplitude ratios
    reflection
    transmission
    couple stress
    wave number
    Opis:
    We have studied the problem of homogenous, isotropic non-local couple stress micropolar thermoelastic solid in the absence of body forces, couple density and heat resources. The reflection and transmission of waves at the interface of two distinct media have been investigated. It is observed that amplitude ratios of various reflected and transmitted waves are functions of wave number of incident waves and are affected by the non-local parameter of thermoelastic solid.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 2; 53--76
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reflection at free surface in micropolar thermoelastic solid with two temperatures
    Autorzy:
    Sharma, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/266249.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termoelastyczność
    fale sprężyste
    współczynnik odbicia dźwięku
    micropolar thermoelastic solid
    conductive and thermodynamic temperatures
    elastic waves
    reflection coefficient
    Opis:
    The present investigation is concerned with the effect of two temperatures on reflection coefficients in a micropolar thermoelastic solid half space. With two relaxation times, reflection of plane waves impinging obliquely at a plane interface of the micropolar generalized thermoelastic solid half space with two temperatures is investigated. The incident wave is assumed to be striking at the plane surface after propagating through the micropolar generalized thermoelastic solid with two temperatures. Amplitude ratios of the various reflected waves are obtained in closed form and it is found that these are functions of angle of incidence, frequency and are affected by the elastic properties of the media. The effect of two temperatures is shown on these amplitude ratios for a specific model.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 217-234
    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:
    A study on fractional order thermoelastic half space
    Autorzy:
    Roy, Sourov
    Lahiri, Abhijit
    Powiązania:
    https://bibliotekanauki.pl/articles/1839784.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    źródło ciepła
    transformata Laplace'a
    thermoelasticity
    instantaneous heat source
    fractional order
    thermoelastic half space
    eigen value approach
    Opis:
    In this paper, we consider a one dimensional problem on a fractional order generalized thermoelasticity in half space subjected to an instantaneous heat source. The Laplace transform as well as eigen value approach techniques are applied to solve the governing equations of motion and heat conduction. Closed form solutions for displacement, temperature and stress are obtained and presented graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 4; 191-202
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reflection and transmission at the boundary surface of modified couple stress thermoelastic media
    Autorzy:
    Kumar, R.
    Kumar, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/264443.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termoelastyczność
    fala podłużna
    fala poprzeczna
    wskaźniki amplitudy
    modified couple stress thermoelastic solid
    longitudinal wave
    transverse wave
    reflection
    transmission
    amplitude ratios
    Opis:
    In this paper the reflection and transmission at a plane interface in modified couple stress generalized thermoelastic solid half spaces in the context of Loard-Shulman (LS) and Green-Lindsay (GL) theories in welded contact are investigated. Amplitude ratios of various reflected and transmitted waves are obtained due to incidence of a set of coupled longitudinal waves and coupled transverse waves. It is found that the amplitude ratios of various reflected and transmitted waves are functions of the angle of incidence, frequency and are affected by the couple stress properties of the media. Some special cases are deduced from the present formulation.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 1; 61-81
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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