Browsing by Author "Tourab, Mohamed"

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    Analysis of the dynamic behavior of magnetorheological elastomer composite : elaboration and identification of rheological properties
    (2018) Nedjar, Ali; Aguib, Salah; Djedid, Toufik; Nour, Abdelkader; Settet, Ahmed; Tourab, Mohamed
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    Experimental analysis of the thermal effect of the magneto-mechanical behavior of viscoelastic elastomer
    (2019) Tourab, Mohamed; Aguib, Salah
    This paper is devoted to an experimental of the thermal effect of the magnetomechanical behavior of elastomer; the latter is loaded with 25% of ferromagnetic particles of micrometric size; developed under the action of a magnetic field. The characterization of the rheological properties and the interaction between the micron size ferromagnetic particles as a function of the intensity of the magnetic field are studied under the effect of different temperatures. The results obtained clearly show the high energy dissipation properties of the composite, accentuated by the structure modified under the thermal effect, which gives properties of viscoelastic structures that can be adjusted as a function of the intensity of the magnetic field
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    Study of Structural, Elastic, Thermal and Transport Properties of Ternary X(X=Co, Rh and Ir)MnAs Obtained by DFT
    (V N Karazin Kharkiv National University, 2022) Kadri, Salim; Tourab, Mohamed; Berkani, Mahièddine; Amraoui, Rabie; Bordjiba, Zeyneb
    The Density Functional Theory (DFT) with an approximation of generalised gradient is used for the study of elastic, thermodynamic and transport properties and for that of structural stability of ternary Half-Heuslers compounds X(X=Co, Rh and Ir)MnAs. This first predictive study of this compounds determines the mechanical properties such that the compression, shearing, Young modulla and Poisson coefficient without omitting the checking parameters of the nature of these compounds such that hardness, Zener anisotropic facto rand Cauchy pressure. The Pugh ratio and Poisson coefficient have allowed the identification of ductile nature of these compounds. The speed of sound and Debye temperature of these compounds has also been estimated from the elastic constants. The thermodynamic properties have been calculated as well for a pressure interval from zero to 25 GPa. The effect of chemical potential variation on Seebeck coefficient, electric, thermal and electronic conductivities, the power and merit factors have also been studied for different temperatures (300, 600, 900°K), so that these alloys can be better potential candidates for thermoelectric applications
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    Support de cours en bureau des methodes
    (Faculté de Technologie : Département de Génie Mécanique, 2025) Tourab, Mohamed
    Le polycopié de bureau des méthodes qui touche l’élaboration des gammes d’usinage des pièces mécaniques par le choix des procédés et des moyens d’œuvre économiques, est le fruit d’une expérience acquise en tant qu’enseignant pendant vingt et un ans au sein de la Faculté de Technologie, Département de Génie Mécanique, Université M’hamed Bougara (Boumerdès). Ce polycopié est destiné aux étudiants master fabrication et construction mécanique, et représente aussi un support pédagogique aux enseignants chargés de ce module.....