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Fatigue crack growt...
Fatigue crack growth rate in thick plates of 7010
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Andersson, Nils-Eric (author)
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Johansson, Sten (author)
- Beijing : Higher Education Press, 1999
- 1999
- English.
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In: Fatigue '99. - Beijing : Higher Education Press. - 9787040075823 ; , s. 445-450
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
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- A mapping of fatigue crack growth rates in thick plates of a high strength aluminium alloy has been done. The plate thicknesses investigated was 100, 150 and 200 mm. In this work, material from near edge at near surface and mid-thickness has been investigated. Measurements of crack length has been performed using DC potential drop. Cyclic condensation is used in order to reveal crack growth behaviour for stage I and the earlier part of stage II crack growth. Influence of crack closure, crack branching and slow growing side cracks on fatigue crack growth rate of S-L and L-T oriented specimens are discussed. Variation of difference in growth rate in the upper part of the stage II growth between near surface and mid thickness positioned L-T specimens are found to vary with plate thickness.
Keyword
- Aluminum base alloys; Mechanical properties; Fatigue failure; Crack propagation; Al Zn Mg Cu alloys
Publication and Content Type
- vet (subject category)
- kon (subject category)
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