Far field microwave NDE of composite structures using time reversal mirror
| Autor: | Lalita Udpa, Mahmoodul Haq, Saptarshi Mukherjee, Satish S. Udpa, Antonello Tamburrino |
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| Rok vydání: | 2018 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Acoustics 010401 analytical chemistry Composite number 020206 networking & telecommunications Near and far field 02 engineering and technology Fibre-reinforced plastic Condensed Matter Physics 01 natural sciences 0104 chemical sciences Experimental system Radar imaging Nondestructive testing 0202 electrical engineering electronic engineering information engineering Electronic engineering General Materials Science Time domain business Microwave |
| Zdroj: | NDT & E International. 93:7-17 |
| ISSN: | 0963-8695 |
| DOI: | 10.1016/j.ndteint.2017.09.008 |
| Popis: | Microwave NDE techniques rely on the ability to propagate through Fiber Reinforced Polymer (FRP) composites and provide information about the structural integrity of composite materials. Time reversal (TR) property of the wave equation offers an effective method for interpreting the microwave NDE data. In TR, the fields back-propagate to focus at the source. TR techniques using microwave measurements have proved to be promising in radar imaging and nondestructive evaluation (NDE). This paper investigates the feasibility of using microwave TR for NDE of composite materials. Simulation studies demonstrate the feasibility and robustness of this approach to detect disbonds in metal-composite joints. An experimental system is built using a pulsed time domain setup coupled with the TR method. Experimental results demonstrate the capability of this technique for detecting single as well as multiple defects in composite materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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