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Open AccessArticle

Hardware-In-The-Loop Simulations of Hole/Crack Identification in a Composite Plate

1
Department of Aeronautics and Astronautics, R.O.C. Air Force Academy, Gangshan 820, Taiwan
2
Department of Mechanical Engineering, Cheng Shiu University, Kaohsiung 830, Taiwan
*
Author to whom correspondence should be addressed.
Materials 2020, 13(2), 424; https://doi.org/10.3390/ma13020424
Received: 11 December 2019 / Revised: 10 January 2020 / Accepted: 13 January 2020 / Published: 16 January 2020
(This article belongs to the Collection Selected Papers from IMETI)
The technology of hardware-in-the-loop simulations (HILS) plays an important role in the design of complex systems, for example, the structural health monitoring (SHM) of aircrafts. Due to the high performance of personal computers, HILS can provide practical solutions to many problems in engineering and sciences, especially in the huge systems, giant dams for civil engineering, and aircraft system. This study addresses the HILS in hole/crack identification in composite laminates. The multiple loading modes method is used for hole/crack identification. The signals of strains measured from the data-acquisition (DAQ) devices are accomplished by the graphical software LabVIEW. The results represent the actual responses of multiple loading mode tests of real specimens. A personal computer is employed to execute the identification work according to the strain data from DAQ devices by using a nonlinear optimization approach. When all the criteria are satisfied, the final identification results will be obtained. HILS will achieve real time identification of hole/crack in the composite plate by using the actual response measured from the sensors. Not only the size, but also the location and orientation of the crack/hole in a composite plate are successfully identified herein. View Full-Text
Keywords: hardware-in-the-loop simulations (HILS); hole/crack identification; multiple loading modes; nonlinear optimization; structural health monitoring (SHM) hardware-in-the-loop simulations (HILS); hole/crack identification; multiple loading modes; nonlinear optimization; structural health monitoring (SHM)
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Liang, Y.-C.; Sun, Y.-P. Hardware-In-The-Loop Simulations of Hole/Crack Identification in a Composite Plate. Materials 2020, 13, 424.

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