Căutare după Autor "Palaghian, Liviu"

Afișează articolele 1-9 of 9

    • An Analytical Procedure to Incorporate the Bauchinger Effect on Fretting Fatigue Models 

      Buciumeanu, Mihaela; Palaghian, Liviu; Sousa Miranda, António; Silva, Filipe Samuel (Universitatea ”Dunărea de Jos” din Galați, 2009)
      This paper proposes a modification on SWT model concerning the prediction on fretting fatigue life, in order to take into account the material deviation from the ideal elastic-plastic behaviour, the so-called “Bauschinger ...

    • Damage Prediction in Fatigue Corrosion Processes 

      Băicean, Svetlana; Palaghian, Liviu; Buciumeanu, Mihaela; Mereuță, Valentin (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The paper aims to establish an algorithm for determining the values and evolution of the stress concentration factor in corrosive environment, and establish its influence on the fatigue strength of steel required in a ...

    • Electrochemical and Mechanical Changes on Fatigue Corrosion Damaged Surfaces 

      Băicean, Svetlana; Palaghian, Liviu; Ciortan, Sorin; Thompson, Mioara (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The paper presents some surfaces changes aspects in fatigue corrosion damage based on electrochemical, mechanical profilometry and microscopically analyze of cylindrical and plate steel specimens. The researches have ...

    • Modelling and Prediction in Failure Processes by Mechanical Stresses in Corrosive Environment 

      Palaghian, Liviu; Thompson, Mioara; Băicean, Svetlana; Bucșă, Sorin (Universitatea "Dunărea de Jos" din Galați, 2007)
      The complex interaction effect of mechanical stress- mechanical systems and aggressive environment, leads, at dramatic decreasing of their durability and reliability. The analyze of physical-chemical processes such as: ...

    • Modelling of Some Degradation Processes by Corrosion Fatigue of Metallic Surfaces 

      Băicean, Svetlana; Buciumeanu, Mihaela; Palaghian, Liviu (UDJG, 2011)
      Based on the well known fatigue corrosion effects, the mechanical stress and the corrosive environment have a significant effect on the prediction of the lifespan of the equipments that work in corrosive environment, two ...

    • Modelling of some Degradation Processes by Corrosion Fatigue of Metallic Surfaces 

      Băicean, Svetlana; Buciumeanu, Mihaela; Palaghian, Liviu (UDJG, 2011)
      Based on the well known fatigue corrosion effects, the mechanical stress and the corrosive environment have a significant effect on the prediction of the lifespan of the equipments that work in corrosive environment, two ...

    • Nitrogen Influence on Indentation Fracture Toughness of Stainless Steel Coatings 

      Thompson, Mioara; Palaghian, Liviu (Universitatea ”Dunărea de Jos” din Galați, 2008)
      This paper studies some aspects of coatings fracture theory and the possibility of extending Lawn’s equation from Vickers indenter geometry to the Rockwell one. Indentation tests were performed on stainless steel coatings ...

    • Roughness as Small Surface Defects and Microstructure Changes in the Fatigue Process 

      Mereuță, Valentin; Gheorghieș, Constantin; Palaghian, Liviu (UDJG, 2011)
      Examinations in detail using X-radiation diffraction of the dislocation substructure in fine-grained S355JR steels plate specimen fatigued with constant amplitude were carried out to investigate the correlation between the ...

    • The Neuber’s Rule and a Correlation Between Fretting Fatigue and Plain Fatigue 

      Buciumeanu, Mihaela; Palaghian, Liviu (UDJG, 2010)
      Based on these experimental observations and on the remark that any small change on the discontinuity geometry has a significant effect on the stress distribution around it, a stress concentration factor is mandatory to ...