Standard deviation as a suitable criterion for localizing damages in Nano- composite structures
Publish place: The 7th Iranian International NDT Conference
Publish Year: 1403
Type: Conference paper
Language: English
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Document National Code:
ICTINDT07_030
Index date: 13 November 2024
Standard deviation as a suitable criterion for localizing damages in Nano- composite structures abstract
Wavelet transform is a proper method for detecting damages in signals such as vibration mode shapes. This study introduces the standard deviation as a suitable criterion for selecting and analyzing wavelet function in damage detection of nano-laminated composite structures. In this way, a Fe2O3-carbon epoxy fiber laminated composite structure is studied. Experimental modal analysis is conducted to obtain the natural frequencies and their corresponding mode shapes. Findings show that the standard deviation can effectively find the best analyzing wavelet function for structural damage detection when the damages are led to local and subtle changes in vibration mode shapes.
Standard deviation as a suitable criterion for localizing damages in Nano- composite structures Keywords:
Standard deviation as a suitable criterion for localizing damages in Nano- composite structures authors
Alireza Gholipour
Department of Technical and Engineering Sciences, National Skill University, Amol, Iran
Morteza Saadatmorad
Department of Mechanical engineering, Babol Noshirvani University of Technology, Iran
Mohammad Hassan Shahavi
Department of Nanotechnology, Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies (AUSMT), Amol, Iran
