LEAKAGE THROUGH CRACKS IN LNG TANKAGE

An experimental and theoretical investigation of leakage through fatigue indiced cracks in cylindrical test vessels was conducted. Test vessels were constructed from two aluminum alloys and 9% nickel steel. Experimental and theoretical leak rate vs pressure curves are presented and compared. The generally higher values of leak rate predicted by the theory are explained on the basis of the observed crack geometry. Recommendations are made for predicting leakage through fatigue cracks in tanks.

• Corporate Authors:

  Versar Incorporated

  6850 Varsar Center
  Springfield, VA  United States  22151

  Maritime Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Davies, L G
  • Durfee, R L
  • Fourney, W
  • Gift, R D
• Publication Date: 1974-5-31

Media Info

• Pagination: 91 p.

Subject/Index Terms

• TRT Terms: Container tanks; Cracking; Fatigue cracking; Fracture mechanics; Liquefied gases; Liquefied natural gas; Tankers
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Tank fracture
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00084820
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Files: TRIS, USDOT
• Created Date: May 29 1975 12:00AM