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OTH 369

Effects of cathodic protection potential and stress ration on fatigue thresholds of structured steels in sea water

The threshold stress intensity range for corrosion fatigue crack growth is an important parameter for the prediction of in service crack propagation in offshore structures in the North Sea by fracture mechanics techniques. This memorandum describes the results of an investigation into the influence of test technique, stress ration, cathodic protection potential and specimen geometry on corrosion fatigue crack growth thresholds of BS 4360:50D steel in natural seawater.

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Updated 2010-03-19