A comparison of constant-load and constant-deflection stress-corrosion tests on precracked DCB specimens
In: International Journal of Fracture, Jg. 14 (1978-02-01)
Online
report
A comparison is made between measurements of stress-corrosion crack propagation made by a constant-load procedure and by a constant-deflection procedure. Precracked double cantilever beam specimens from 7075 aluminum alloy plate were used. The specimens were oriented in such a way that cracking would begin in the short-transverse plane and would propagate in the rolling direction. The specimens were subjected to a buffered salt-chromate solution and a 3.6% synthetic sea salt solution. The measurements were made optically with a binocular microscope. Stress intensities and crack lengths were calculated and crack velocities were obtained. Velocity was plotted against the average calculated stress intensity. Good agreement between the two methods was found for the salt-chromate solution, although some descrepancies were noted for the artificial sea salt solution.
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A comparison of constant-load and constant-deflection stress-corrosion tests on precracked DCB specimens
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Autor/in / Beteiligte Person: | Dorward, R. C ; Hasse, K. R |
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Zeitschrift: | International Journal of Fracture, Jg. 14 (1978-02-01) |
Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 1978 |
Medientyp: | report |
DOI: | 10.1007/BF00032397 |
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