Overview

The goal of this research effort was to study methods of video image correlation and electronic shearography for nondestructive evaluation of aerospace components. Methods of physical load application must be developed before interrogations with these methods may be used to qualify hardware. To that end, inspection procedures were developed for a variety of aerospace components and material systems. Experiments were also conducted from which the relationship between the control settings of the electronic shearography apparatus may be related to flaw detectability. A short feasibility study was conducted to determine the applicability of electronic shearography to the determination of the stress intensity factor of a Mode 1 crack tip by measurement of the localized zone of three dimensional plasticity Lansing, Matthew D. and Bullock, Michael W. and Gnacek, William J. Unspecified Center IMAGING TECHNIQUES; INSPECTION; NONDESTRUCTIVE TESTS; SHEAR STRESS; SPACECRAFT COMPONENTS; VIDEO DATA; COMPOSITE STRUCTURES; CRACK TIPS; DELTA CLIPPER; EXTERNAL TANKS; FEED SYSTEMS; FILAMENT WINDING; FUEL TANKS; IMAGE CORRELATORS; PLASTIC PROPERTIES; STRESS INTENSITY FACTORS...

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9781723206900

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