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Two Parameter Engineering Fracture Mechanics: Calculation of the Relevant Parameters and Investigation of Their Influence on the Surface Notch

  • Mohamed Hadj Meliani
  • Zitouni Azari
  • Guy Pluvinage
  • Yu. G. Matvienko
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC, volume 1)

Abstract

In the present research, T-stress solutions are provided for a U-shaped notch in the case of four specimens: CT, DCB, SENT and Romain Tile (RT). The U-shaped notch is analyzed using the finite element method to determine the stress distribution ahead of the notch tip. In contrast to a crack, it was found that the T-stress is not constant and depends on distance from the notch-tip. To estimate the T-stress in the case of a notch, a novel method, namely, method of line, inspired from the volumetric method approach proposed by Pluvinage has been developed. Thus, the two-parameter approach was adopted for the notch two-parameter fracture mechanics in terms of the notch stress intensity factor Kρc and the effective (average) T-stress, Tef. Fracture toughness transferability curve (Kρc -Tef) of X52 pipe steels has been established.

Keywords

Fracture Toughness Stress Intensity Factor Plastic Zone Fracture Process Zone Effective Distance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Mohamed Hadj Meliani
    • 1
  • Zitouni Azari
    • 2
  • Guy Pluvinage
    • 2
  • Yu. G. Matvienko
    • 3
  1. 1.Laboratoire de Physique Théorique et Physique des Matériaux (LPTPM), FSSIUniversité Hassiba BenboualiChlefAlgeria
  2. 2.Laboratoire de Mécanique, Biomécanique, Polymères et structures, LaBPS-ENIM, île de saulcyUniversité Paul Verlaine de MetzMetzFrance
  3. 3.Laboratory of Modelling Damage and FractureMechanical Engineering Research Institute of the Russian Academy of SciencesMoscowRussia

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