PRELIMINARY TESTING RESULTS FOR THE APPLICATION OF A NONDESTRUCTIVE EVALUATION TECHNIQUE UTILIZING THE PHENOMENON OF INTERNAL FRICTION FOR DETECTING CRACK FORMATION IN A SCALE MODEL OF AN OFFSHORE STRUCTURE
The safety and reliability of offshore structures and critical components are becoming increasingly recognized as a major area requiring utilization of advanced technology for detecting and evaluating incipient crack formation by nondestructive evaluation. These operating structures and critical components are exposed to extreme oceanic environments including dynamic forces (wave loads, wind loads, ice loads, etc); sea water corrosion; spray erosion; and wide fluctuations in temperature. Although adequate factors of safety and modern engineering practices are employed in designing and operating these structures, it is impossible to anticipate and evaluate properly all of the environmental factors in order to ensure the safety and reliability of the system. Because of the complex interaction of the wide spectrum of environmental and material factors, it is imperative that inspection techniques be utilized. One method for system evaluation is to employ a suitable nondestructive evaluation (NDE) technique that would indicate impending material failure.
Daedalean Associates, IncorporatedSpringlake Research Center, 15110 Frederick Road
Woodbine, MD United States 21797
- Fresch, D C
- Yeager, L L
- Hochrein, AAJ
- Thiruvengadam, A P
- Publication Date: 1978-9
- Pagination: 54 p.
- TRT Terms: Corrosion; Cracking; Detection and identification; Detectors; Dynamic loads; Fatigue (Mechanics); Flaw detection; Fracture mechanics; Inspection; Internal friction; Nondestructive tests; Oceans; Offshore structures; Reliability; Safety; Safety engineering; Scale models; Structural analysis; Structural design; Tests
- Uncontrolled Terms: Corrosive environments; Crack detection; Structural reliability
- Old TRIS Terms: Crack formation; Model testing; Ocean environments; Test and evaluation
- Subject Areas: Bridges and other structures; Marine Transportation; Materials; Safety and Human Factors;
- Accession Number: 00304019
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: DAI-DF-7763-001-TR Tech Rpt.
- Contract Numbers: N00014-77-C-0567
- Files: TRIS
- Created Date: Dec 19 1980 12:00AM