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Ultrasonic Phased Array Inspection for an Isogrid Structural Element with CracksIn this investigation, a T-shaped aluminum alloy isogrid stiffener element used in aerospace applications was inspected with ultrasonic phased array methods. The isogrid stiffener element had various crack configurations emanating from bolt holes. Computational simulation methods were used to mimic the experiments in order to help understand experimental results. The results of this study indicate that it is at least partly feasible to interrogate this type of geometry with the given flaw configurations using phased array ultrasonics. The simulation methods were critical in helping explain the experimental results and, with some limitation, can be used to predict inspection results.
Document ID
20100013923
Document Type
Technical Memorandum (TM)
Authors
Roth, D. J.
(NASA Glenn Research Center Cleveland, OH, United States)
Tokars, R. P.
(NASA Glenn Research Center Cleveland, OH, United States)
Martin, R. E.
(Cleveland State Univ. Cleveland, OH, United States)
Rauser, R. W.
(Toledo Univ. Toledo, OH, United States)
Aldrin, J. C.
(Computational Tools, Inc. Gurnee, IL, United States)
Schumacher, E. J.
(Magsoft Corp. Ballston Spa, NY, United States)
Date Acquired
August 24, 2013
Publication Date
March 1, 2010
Subject Category
Quality Assurance And Reliability
Report/Patent Number
E-17135
NASA/TM-2010-216090
Funding Number(s)
WBS: WBS 869021.03.03.01.08
Distribution Limits
Public
Copyright
Public Use Permitted.

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