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University of Houston

1. Khoury, George Charles. Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors.

Degree: MS, Mechanical Engineering, 2014, University of Houston

URL: http://hdl.handle.net/10657/1388 

Many non-destructive damage detection problems are presented with the challenge where limited sensor sets allow the measurement of fewer degrees of freedom than the analytical model. This study utilized damage residual expansion methods to determine the overall structural damage locations with reduced sensor sets. The new methods presented were the Modified Method of Expanded Dynamic Residuals and the Dot Product Damage Residual Expansion Method. Ritz vectors were also used with various sensor placement techniques to modify the sensor sets and focus the damage detection capabilities towards elements of interest. The results showed that the modified damage residual expansion methods were able to locate the damaged elements, while also simplifying the selection process, by employing the dot product method and the elemental disassembly. Additionally, the sensor set variations effectively focused the damage detection results towards elements of interest by modifying the Ritz vector loadings. Advisors/Committee Members: Franchek, Matthew A. (advisor), Grigoriadis, Karolos M. (committee member), Provence, Robert S. (committee member), Masson, Philippe J. (committee member).

Subjects/Keywords: Damage Detection; Minimum Rank Perturbation Theory; Damage Residuals; Method of Expanded Dynamic Residuals; Modified Method of Expanded Dynamic Residuals; Dot Product Damage Residual Expansion Method; Ritz Vectors

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Khoury, G. C. (2014). Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/1388

Chicago Manual of Style (16th Edition):

Khoury, George Charles. “Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors.” 2014. Masters Thesis, University of Houston. Accessed January 28, 2021. http://hdl.handle.net/10657/1388.

MLA Handbook (7th Edition):

Khoury, George Charles. “Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors.” 2014. Web. 28 Jan 2021.

Vancouver:

Khoury GC. Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors. [Internet] [Masters thesis]. University of Houston; 2014. [cited 2021 Jan 28]. Available from: http://hdl.handle.net/10657/1388.

Council of Science Editors:

Khoury GC. Analyzing the Effects of Force Variations on Expanded Residual Damage Detection using Load Dependent Ritz Vectors. [Masters Thesis]. University of Houston; 2014. Available from: http://hdl.handle.net/10657/1388

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