Journal
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
Volume 32, Issue 4, Pages 304-318Publisher
WILEY
DOI: 10.1111/mice.12258
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Funding
- National Natural Science Foundation of China [51508070]
- National Key Basic Research Program of China [2015CB060000]
- Polish Ministry of Science and Higher Education
- Fundamental Research Funds for the Central Universities [DUT16YQ101]
- State Key Laboratory of Structural Analysis for Industrial Equipment [GZ1601]
- [MNiSW, 634/MOB/2011/0]
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This work proposes an efficient and reliable method for damage localization in truss structures. The damage is localized on the basis of measured acceleration signals of the structure followed by simple statistical signal processing. It has three main advantages over many existing methods. First, it can be directly applied to real engineering structures without the need of identifying modal parameters or solving any global optimization problem. Second, the proposed method has higher sensitivity to damage than some other frequently used methods and allows to localize damage as small as a few percentages. Third, it is a model-freemethod, which does not require precise finite element model development or updating. Validation of the method has been conducted on numerical examples and laboratory-scale trusses. Two types of frequently used trusses have been selected for this study, namely, Howe and Bailey trusses. The presented experimental validation of the method shows its efficiency and robustness for damage localization in truss structures.
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