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Statistical and Dempster-Shafer Techniques in Testing Structural Integrity of Aerospace Structures

By Roberto Osegueda Seetharami, Roberto A. Osegueda, Seetharami R. Seelam, Chin-wang Tao, Ana C. Holguin and Vladik Kreinovich

Abstract

We describe the existing statistics-related methods of testing structural integrity for aerospace structures, describe their drawbacks, how they can be overcome, and compare the resulting techniques. Keywords: structural integrity, aerospace structures, statistical methods, Dempster-Shafer method 1 Introduction Testing of structural integrity of aerospace structures is an important practical problem (see, e.g., [2]). Some of the faults can be detected visually, but other (sometimes potentially dangerous) faults do not show up during the visual inspection. To detect such faults, we must use some indirect (non-destructive) testing techniques. Several such techniques are known, such as pulse echo, Eddy current, magnetic resonance, etc. Each of these techniques detects some faults but misses others, so it is desirable to combine (fuse) the results of these techniques. In this paper, we describe different statistical and Dempster-Shafer methods for producing such a combination, desc..

Year: 2000
OAI identifier: oai:CiteSeerX.psu:10.1.1.32.1852
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