Mechanical and engineering systems

Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/9645

Browse

Search Results

Now showing 1 - 4 of 4
  • Item
    Study of the mechanical behavior of single edage notched tension (SENT)
    (Université M’Hamed Bougara Boumerdes : Faculté de Technologie, 2017) Chafai, Oussama; Kaabouche, Ali; Settet, Ahmed Tidjani(Promoteur)
    In this Work,we tried to understand and estimate the composite material’s rupture and how it reacts in the presence of different fracture dimensions especially for composite materials that are made by carbon/epoxy and glass/epoxy,so we prepared specimens using this two materials then we created different crack sizes and angles in the aim to see the propagation of the cracks and deduce the displacement,the deformation and stresses.We simulated plan specimens (without crack) and specimens that gave us the weakest results using the simulation program ‘Ansys’.then we tried to compare theses experimental results with the other results that are obtained using simulation study of the critical specimens
  • Item
    Study of honeycomb panels under tensile stresses and bending
    (Université M’Hamed Bougara Boumerdes : Faculté de Technologie, 2017) Djellab, Amira; Hamzaoui, Nabil; Settet, Ahmed Tidjani(Promoteur)
    In this paper,we study the stresses applied to honeycomb sandwich panels.To do this we have prepared three samples of panels with the same core and faces of different materials and these are carbon fiber fabrics and glass fibers and then applied two types of stresses:tensile and flexural.The third type,shear stress, was illustrated using ANSYS software.The results obtained allowed us to distinguish the critical zones from the stress concentrations on the sandwich panel
  • Item
    Study of active vehicle suspension systems with fuzzy logic controller
    (Université M’Hamed Bougara Boumerdes : Faculté de Technologie, 2017) Mouffok, Bessma; Settet, Ahmed Tidjani(Promoteur)
    The Objective of this work to study the active and the passive suspension for compared it with the sky-hook model reference ,with different road profile.The performance of the controller is compared with fuzzy logic controller and the active suspension system by performing computer simulations through the MATLAB and SIMULINK
  • Item
    Influence of the orientation of a multiple crack in V-shape under tensile stresse
    (Université M’Hamed Bougara Boumerdes : Faculté de Technologie, 2017) Ghazli, Tarik; Mezili, Adel; Settet, Ahmed Tidjani(Promoteur)
    We studied the influence of the orientation of the crack under tensile testing of composite plates (glass / epoxy and carbon / epoxy).We four chapters. First,the definition and characteristics,the advantage and the disadvantage of the composite materials, we also spoke about the laminate and the orientation of the fibers.Second,the theories and laws of failure and fracture according to different criteria,energy criterion,Tsai_wu criterion,tsai-hill criterion.Thirdly, we experimented on fiberglass and carbon fiber reinforced epoxy matrix plates with different sizes and orientations of cracks.Finally, we made a model using the Abaqus software to compare the results Between experimental and simulation