MULTIAXIAL CREEP FRACTURE STRAIN ANALYSIS FOR ALLOY 800H
The fracture strains in pressurized thick walled alloy 800H cylinders which failed under high temperature creep conditions are compared with isotropic theory on the basis of a ratio between the circumferential strains for the inner and outer diameters and from the assumption of plane strain deformation. While negligible length changes confirmed the latter a realistic prediction of the measured strain ratio must account for the contribution to circumferential strain by intergranular radial cracks. When so modified with an associated damage parameter the isotropic theory qualitatively agrees with the results obtained for a given redistributed stress state.
Bibliographic Reference: FIRST IRISH DURABILITY AND FRACTURE CONFERENCE - ENVIRONMENTAL EFFECTS IN MATERIALS SERVICE, DUBLIN (IRELAND), MARCH 9-10, 1983 - WRITE TO CEC LUXEMBOURG, DG XIII/2, POB 1907 MENTIONING PAPER E 31151 ORA
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Record Number: 1989122026700 / Last updated on: 1987-01-01
Available languages: en