Strengths of Balloon Films with Flaws and Repairs

By: Nasa, National Aeronautics and Space Adm

The effects of manufacture flaws and repairs in high altitude scientific balloons was examined. A right circular cylinder was used to induce a biaxial tension-tension stress field in the polyethlene film used to manufacture these balloons. A preliminary investigation of the effect that cylinder geometry has on stress rate as a function of inflation rate was conducted. The ultimate goal was to rank, by order of degrading effects, the flaws and repairs commonly found in current high altitude balloons. Portanova, M. A. Unspecified Center NAS1-18000; RTOP 505-63-01-05...

• Format: Paperback
• Language: English
• ISBN: 172901254X
• ISBN13: 9781729012543
• Release Date: January 1
• Publisher: Independently Published
• Length: 30 Pages
• Weight: 0.21 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"