Fatigue Cracking Of Cooling Water Pipes

S. A. Rogers

doi:10.1117/12.952912

31 July 1989 Fatigue Cracking Of Cooling Water Pipes

S. A. Rogers

Proceedings Volume 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis; (1989) https://doi.org/10.1117/12.952912
Event: Sira/Stress and Vibration: Recent Developments in Measurement and Analysis, 1989, London, United Kingdom

Abstract

Fatigue cracks have occurred on fabricated "T"-piece welds on some of the pipes supplying a bearing block labyrinth seal with cooling water. In some instances the weld quality was poor, which gave stress concentration factors (SCF) higher than would be expected for the component geometry. In addition, the vibration damping inherent in the design was extremely low, leading to a significant magnification in stress under resonant conditions. A programme of work was initiated to determine the cause of the cracking and to implement design changes to alleviate the problem; a section of this work involved the use of the CEGEr:s SPATE 8000 system to determine SCFs for "T"-piece/pipe weld geometries.

Citation Download Citation

S. A. Rogers "Fatigue Cracking Of Cooling Water Pipes", Proc. SPIE 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, (31 July 1989); https://doi.org/10.1117/12.952912

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