Now showing items 4-10 of 10

    • Numerical and Experimental Investigations Upon Articular Cartilage Mechanical Hysteresis 

      Frunză, Gheorghe; Ciornei, Florina (UDJG, 2010)
      The paper presents biomechanical and tribological considerations upon articular cartilage. The experimental in vitro results from static and dynamic contact tests are presented together with numerical modelling of the ...
    • Postbuckling Behaviour of Composite Plates with Imperfections 

      Beznea, Elena-Felicia; Chirică, Ionel; Das, Purnendu K. (UDJG, 2010)
      The aim of the work presented in this paper is to analyze the influence of the imperfections on the changes in the buckling behaviour of ship deck plates made of composite materials. Thus, parametric analysis of the ...
    • Power Losses Estimation in Precessional Gear 

      Bostan, Ion; Dulgheru, Valeriu; Bodnariuc, Ion (UDJG, 2010)
      Having established the estimation relations of power losses in basic kinematical joints, it becomes relatively simple to establish the estimation relation of kinematical precessional transmission efficiency which, on the ...
    • Surface Roughness Parameters Evolution Under Fatigue Loading 

      Mereuță, Valentin V.; Palaghian, Liviu C. (UDJG, 2010)
      The main objective of this paper is to demonstrate that in order to have a complete characterisation of fatigue degradation it is necessary to analyze the evolution of surfaces roughness, which can become a stress ...
    • The Influence of the Sintering Atmospheres on the Wear Behaviour of the Copper Based Alloys 

      Gheorghe, Ștefan; Teișanu, Cristina; Merstallinger, Andreas; Ciupitu, Ion (UDJG, 2010)
      The Powder Metallurgy (PM) technique allows manufacturing the sintered selflubricating materials having a high wear resistance. It is well known that the small and medium sized bearings are processed by PM with better ...
    • The Reliability of the Rlac Bore-Hole Pumps 

      Drumeanu, Adrian Cătălin; Antonescu, Niculae Napoleon (UDJG, 2010)
      The paper aims to present a study concerning the determination of the borehole pumps operating reliability. The considered bore-hole pump for this study is RLAC 2 7/8 x 1¾ in x 32c type and it equips the oil-wells of ...
    • A Three-Dimensional Elastic-Plastic Analysis of Rolling Contacts 

      Benchea, Marcelin; Crețu, Spiridon (UDJG, 2010)
      An analysis model has been developed to model the nonlinear strain rate dependent deformation of rolling bearing steel stressed in the elastic-plastic domain. The model is designed in the frame of the incremental theory ...