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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Tian, Zhenhua Huang, Guoliang Yu, Lingyu |
| Copyright Year | 2014 |
| Abstract | This paper studies the guided waves in honeycomb sandwich structures and explores the ability of guided waves for the debonding damage detection. Both the finite element (FE) simulations and laser vibrometry experiments are used. A three-dimensional (3D) FE model is built to simulate the guided waves in a honeycomb sandwich plate. The simulation results show the guided waves in the structure depend on the wave frequency. At low frequencies, the global guided waves propagate in the entire sandwich, while leaky guided waves dominate in the skin panel at high frequencies. To further understand the guided wave propagation fundamentals, laser vibrometry experiments are performed. The waveforms, time-space wavefields, and frequency-wavenumber spectra obtained from the experiments are used to unveil the wave propagation features. The experimental results confirm the leaky guided waves. Moreover, the experimental results show the complex wave interactions induced by the honeycomb core. When the debonding between the skin and honeycomb core presents, the guided wave amplitude increases, and the wave interaction with the honeycomb core reduces. |
| Sponsorship | Aerospace Division |
| File Format | |
| ISBN | 9780791846148 |
| DOI | 10.1115/SMASIS2014-7642 |
| Volume Number | Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation |
| Conference Proceedings | ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems |
| Language | English |
| Publisher Date | 2014-09-08 |
| Publisher Place | Newport, Rhode Island, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Leakage Sandwich structures Waves Finite element model Wave propagation Simulation results Simulation Spectra (spectroscopy) Lasers Wave frequency Skin Engineering simulation Finite element analysis Honeycomb structures Damage Wave amplitude |
| Content Type | Text |
| Resource Type | Article |
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