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Abstract

Laboratory techniques for validating the reference stress approach for CCG in components are applied to the specific case of external and internal circumferentially notched 2.25Cr1Mo tubes. Under different loading conditions, the notched tube stress rupture behaviour is shown to correlate well with material data when a plane strain limit load solution of reference stress is used. The comparison of notched tube CCG behaviour expressed in terms of C(*) integral provides less satisfactory correlations, apparently due to the influence of the creep data used in the analysis. Preliminary results from finite element models of the notch region show promise in supporting the laboratory validation technique.

Additional information

Authors: HURST R C, JRC Petten (NL);CHURCH J M, JRC Petten (NL);LOONEY L, JRC Petten (NL);MCALLISTER S, JRC Petten (NL)
Bibliographic Reference: Paper presented: Fifth Creep and Fracture of Engineering Materials and Structures, Swansea (GB), March 28 - April 2, 1993
Availability: Available from (1) as Paper EN 37349 ORA
Record Number: 199310489 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en