DETERMINATION OF CRACK INITIATION AND CRACK RESISTANCE USING COMPACT SPECIMENS, AND COMPARISON WITH RESULTS OF NUMERICAL-SIMULATION OF DYNAMICALLY LOADED WIDE PLATES

Citation
K. Kussmaul et al., DETERMINATION OF CRACK INITIATION AND CRACK RESISTANCE USING COMPACT SPECIMENS, AND COMPARISON WITH RESULTS OF NUMERICAL-SIMULATION OF DYNAMICALLY LOADED WIDE PLATES, Nuclear Engineering and Design, 151(2-3), 1994, pp. 489-502
Citations number
17
Categorie Soggetti
Nuclear Sciences & Tecnology
ISSN journal
00295493
Volume
151
Issue
2-3
Year of publication
1994
Pages
489 - 502
Database
ISI
SICI code
0029-5493(1994)151:2-3<489:DOCIAC>2.0.ZU;2-H
Abstract
Static and dynamic crack resistance curves for the ferritic steel 20 M nMoNi 5 5 and the austenitic steel X6 CrNi 18 11 were determined for c ompact tension specimens, using a modified key curve method which cont ains a numerical calculation of the key curves. The method is describe d and verified under quasi-static loading. The J integral evluation ac cording to the ASTM standard (which at present is only applicable for ferritic steels under quasi-static loading) did not show in any case a considerable difference compared with the energy release rate approac h. The numerical simulation of tests was carried out for wide plates m ade of austenitic material on the 12 MN high speed tensile testing mac hine at MPA Stuttgart.