SYMPOSIA PAPER Published: 01 January 1993
STP18040S

Influence of Specimen Size on -, - and δ - -Curves for Side-Grooved Compact-Tension Specimens

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The influence of specimen size and geometry on R-curves has been studied for a pressure vessel steel and an aluminum alloy using side-grooved compact-tension specimens. The specimen thickness reduction (necking) was used to quantify changes of constraint in laboratory specimens. The results show that the crack tip opening displacement, δ5, and the modified J-integral Jm, can correlate significantly more stable crack growth than the conventional J-integral.

Author Information

Heerens, J
GKSS-Research Centre Geesthacht, Max-Planck-Strasse, Geesthacht, Germany
Schwalbe, K-H
GKSS-Research Centre Geesthacht, Max-Planck-Strasse, Geesthacht, Germany
Nix, C
GKSS-Research Centre Geesthacht, Max-Planck-Strasse, Geesthacht, Germany
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Details
Developed by Committee: E08
Pages: 429–472
DOI: 10.1520/STP18040S
ISBN-EB: 978-0-8031-5229-8
ISBN-13: 978-0-8031-1481-4