• English
  • Deutsch
  • Log In
    Password Login
    Research Outputs
    Fundings & Projects
    Researchers
    Institutes
    Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Artikel
  4. The influence of triaxiality of stable crack growth.
 
  • Details
  • Full
Options
1989
Journal Article
Title

The influence of triaxiality of stable crack growth.

Other Title
Der Einfluß der Mehrachsigkeit auf das stabile Rißwachstum
Abstract
Variations in the J resistance curves obtained for the same material with different specimen geometries are usually attributed to local differences in the state of stress in the vicinity of the crack front. From elastic-plastic finite element evaluations of two post yield fracture experiments the variation along the crack front of the local J and of a constraint factor h for the smooth and side-grooved compact specimen are obtained and correlated with experimental observation. While initiation occurs in both specimens at identical local J and local h the different resistance curve slopes correspond to differences in the average h in both specimens. With that information a simple linear relationship between average h and the slope of the resistance curve was postulated. Applications of this model to the case of a part-through crack in a plate under tension yielded improved prediction of the crack front development due to stable crack extension especially at the specimen surface.
Author(s)
Schmitt, W.
Kordisch, H.
Sommer, E.
Journal
Nuclear Engineering and Design  
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
Keyword(s)
  • constraint

  • constraint-factor

  • constraint-modified J-resistance curves

  • finite element analysis

  • initiation

  • J-integral

  • numerical simulation of stable crack growth

  • stable crack growth

  • stresstriaxiality

  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Contact
© 2024