MIL-STD-801D
3.18 Delamination. A delamination is an area of no adhesion between plies of the fuel cell wall. A delamination is not an area in which adhesion between plies is intermittent, such as where the fabric inner liner adheres primarily to the high points produced by the coarse weave of a reinforcing layer of fabric and does not adhere to the low points (valleys). These areas are essentially unpressurized and do not prevent the cell from satisfactorily holding fuel.
3.19 Design failure. Failures caused by a physical breakdown of the fuel cell or attach points as a result of imposed loads, which the cell was designed to withstand.
3.20 Deterioration of construction or construction failure. A failure caused by action of the test fluid or fuel on any ply or coat of cement or barrier in the fuel cell.
3.21 Dissection test. A destructive test in which the fuel cell is sectioned to permit
critical examination of the interstitial areas of the fuel cell (see MIL-DTL-5578, MIL-DTL-6396, and MIL-DTL-27422).
3.22 Fitting flange. The fabric collar, usually composed of rubber, fabric and/or nylon, that supports the fitting metal so that the fitting may be mounted to the fuel cell structure.
3.23 Fitting leakage. Leakage from around a fuel cell fitting.
3.24 Fried, scarred, or blown condition. An area in the liner material, which has become sponge like, where solvent laden adhesive has "blown" during the vulcanization procedure. This can appear like depressed areas in fuel cell liner and is caused by air or solvent vapor trapped within or between the liner material and building form.
3.25 Hanger straps. An interior or exterior attachment to a fuel cell, usually made of loop of webbing, used to support internal components on the interior of the fuel cell installed in
aircraft and storage containers when applied to the exterior.
3.26 Inner liner. The first ply material applied to a male mold/building form in the manufacture of a fuel cell. It supports and protects the nylon barrier and may be constructed of fabric rubber.
3.27 Integral baffle. An integral baffle is a rubber coated fabric component, which is vulcanized into the tank wall construction as a part of the building process.
3.28 Lap splice edge. The edge of any seams in fabric layers.
3.29 Liner laps. Seams on inner most layer of fuel cells.
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