| Автор | Chen, X |
| Автор | (Appa) Anjanappa, M |
| Дата выпуска | 2006-02-01 |
| dc.description | A new method of detecting delaminations in a composite structure embedded with magnetostrictive particulate sensors is presented in this paper. The main advantages of this method are that it is non-contact, requires access to only one side of the structure, does not need disassembly, and is free of mechanical coupling errors. The composite structure is made of several carbon-fiber-reinforced-polymer (CFRP) layers and one layer of magnetostrictive thick film. To make the fabrication of composite structure simple and practical, a special magnetostrictive thick film whose thickness is comparable to the thickness of CFRP layers was developed. The magnetostrictive thick film consists of fine magnetostrictive particles uniformly distributed in a binding polymer, preferably cured under a bias magnetic field. Also, a compact non-contact sensing module that can be used to scan the surface of a composite structure was developed that consists of a U-shaped magnetic core with excitation and sensing coils on the two arms of the core. A mathematical model for sensing delamination in composite structures with an embedded magnetostrictive thick film layer was developed. Extensive experiments were conducted to validate the model. The open circuit voltage induced in the sensing coil changes significantly, in the range of 50–250 mV, in the presence of delamination. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Health monitoring of composites embedded with magnetostrictive thick film without disassembly |
| Тип | paper |
| DOI | 10.1088/0964-1726/15/1/031 |
| Electronic ISSN | 1361-665X |
| Print ISSN | 0964-1726 |
| Журнал | Smart Materials and Structures |
| Том | 15 |
| Первая страница | 20 |
| Последняя страница | 32 |
| Аффилиация | Chen, X; The Department of Mechanical Engineering, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA ; Mayur Technologies Inc., 4640 Forbes Boulevard, Suite 200, Lanham, MD 20706, USA |
| Аффилиация | (Appa) Anjanappa, M; The Department of Mechanical Engineering, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA ; |
| Выпуск | 1 |
