Abstract
A chaotic signal is used to excite a cracked beam and wave fractal dimension of the resulting time series and power spectrum are analyzed to detect and characterize the crack. For a single degree of freedom (SDOF) approximation of the cracked beam, the wave fractal dimension analysis reveals its ability to consistently and accurately predict crack severity. For a finite element simulation of the cracked cantilever beam, an analysis of spatio-temporal response using wave fractal dimension in frequency domain reveals distinctive variation vis-à-vis crack location and severity. Simulation results are experimentally validated.
| Original language | English (US) |
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| Pages | 97-104 |
| Number of pages | 8 |
| State | Published - Jan 1 2019 |
| Event | 4th International Conference on Chaotic Modeling and Simulation, CHAOS 2011 - Agios Nikolaos, Crete, Greece Duration: May 31 2011 → Jun 3 2011 |
Conference
| Conference | 4th International Conference on Chaotic Modeling and Simulation, CHAOS 2011 |
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| Country/Territory | Greece |
| City | Agios Nikolaos, Crete |
| Period | 5/31/11 → 6/3/11 |
Keywords
- Chaotic excitation
- Chen's oscillator
- Wave fractal dimension
ASJC Scopus subject areas
- Modeling and Simulation