An in-situ bolting and fastener inspection system has been developed by PNNL under funding from the Department of Energy. The inspection system utilizes an ultrasonic pulse-echo technique to detect very small cracks emanating from the thread root. The primary benefits are the ability to inspect the fastener without its removal, much improved detection sensitivity to small cracks and the intuitive interpretation of the acquired images.
Revised: March 23, 2009 |
Published: January 1, 2000
Citation
Good M.S., R.V. Harris, J.R. Skorpik, A.F. Pardini, C.M. Smith, R.E. Bowey, and J.D. Adamson. 2000.In Situ Inspection of Fasteners for Detecting Small Cracks. In Proceedings of the 1st International Conference on Sealing Technology and Plant Leakage Reduction (ICSTPLR-99), edited by JM Jenco, TR-113859, 15-1 - 15-15. Palo Alto, California:Electric Power Research Institute, Inc.PNNL-SA-32247.