THE INFLUENCE OF WELD DEFECTS ON THE FATIGUE BEHAVIOUR OF THE THICK WALL PRESSURE VESSEL
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Abstract
The characteristic of fatigue failure caused by weld defects is that once a fatigue crack is initiated unstabilized fracture can occur immediately.In this paper the influence of various kinds of weld defects on the fatigue behaviour of the thick pressure vessel has been investigated by analyzing the proof-pieces of the vessel and the butt weld specimens with the fatigue crack initiation life method.
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