| タイトル | Health Monitoring of Composite Overwrapped Pressure Vessels (COPVs) Using Meandering Winding Magnetometer ((MWM(Registered Trademark)) Eddy Current Sensors |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110011424 |
| 著者（英） | Russell, Rick; Grundy, David; Washabaugh, Andrew; Goldfine, Neil; Jablonski, David; Martin, Christopher |
| 著者所属（英） | NASA Kennedy Space Center |
| 発行日 | 2011-04-01 |
| 言語 | eng |
| 内容記述 | There are 3 mechanisms that affect the life of a COPV are: a) The age life of the overwrap; b) Cyclic fatigue of the metallic liner; c) Stress Rupture life. The first two mechanisms are understood through test and analysis. A COPV Stress Rupture is a sudden and catastrophic failure of the overwrap while holding at a stress level below the ultimate strength for an extended time. Currently there is no simple, deterministic method of determining the stress rupture life of a COPV, nor a screening technique to determine if a particular COPV is close to the time of a stress rupture failure. Conclusions: Demonstrated a correlation between MWM response and pressure or strain. Demonstrated the ability to monitor stress in COPV at different orientations and depths. FA41 provides best correlation with bottle pressure or stress. |
| NASA分類 | Engineering (General) |
| レポートNO | KSC-2011-069 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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