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Short Intergranular Cracks in Elasto-Plastic Polycrystalline Aggregate

[+] Author Affiliations
Leon Cizelj

“Jožef Stefan” Institute, Ljubljana, Slovenia

Heinz Riesch-Oppermann

Forschungszentrum Karlsruhe, Karlsruhe, Germany

Paper No. ICONE10-22534, pp. 355-360; 6 pages
doi:10.1115/ICONE10-22534
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 1
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3595-2 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

Computational algorithms aiming at modeling and visualization of the initiation and growth of intergranular stress corrosion cracks (e.g., in the steam generator tubes) on the grain-size scale have already been proposed. Main focus of the paper addresses the influence of randomly oriented anisotropic elasto-plastic grains on the microscopic stress fields at crack tips. The limited number of calculations indicate that the incompatibility strains, which develop along the boundaries of randomly oriented grains, influence the local stress fields (J-integrals) at crack tips significantly.

Copyright © 2002 by ASME

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