In order to improve the survival rate of the strain gauges in the oil-water mixture and pressurization environment in the static/fatigue test of aircraft fuel tank, some key installing and protecting techniques were researched. The protective performance of single and double covering with Different protective agents, the various treatment scopes on the specimen and different lengths of lead wire embedded in the protective coating were investigated in a fuel tank which was designed and manufactured specially for the contrast test. Several effective protective techniques are gained, and when these techniques are applied to the practice, a satisfactory survival rate of strain gauges is reached.
Development of a Novel Test Rig for the Evaluation of Aircraft Fuel Tank Sealant