A vibration-based identification of elastic properties of stitched sandwich panels
| Autor: | Zoheir Aboura, Nan Li, Kamel Khellil, Mabrouk Ben Tahar |
|---|---|
| Přispěvatelé: | Roberval (Roberval), Université de Technologie de Compiègne (UTC) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Finite element method [SPI.MAT]Engineering Sciences [physics]/Materials Vibration Identification (information) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Vibration based Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Transverse direction Sandwich-structured composite ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Journal of Composite Materials Journal of Composite Materials, SAGE Publications, 2018, 53 (5), pp.579-592. ⟨10.1177/0021998318788141⟩ |
| ISSN: | 0021-9983 |
| Popis: | Stitched sandwich becomes popular in structural application owing to its better performance in the transverse direction with respect to classical sandwich structure and relatively low-cost additional stitching process. The identification of its elastic properties is essential for offering a tailored structure for specific applications. A non-destructive identification method based on vibration test is proposed to obtain these parameters. The number of parameters is firstly reduced by a sensibility analysis. The retained parameters are identified by minimizing the cost function which indicates the gap between measured frequencies from vibration test and calculated frequencies from a finite element model. This method is applied to a stitched sandwich panel and its elastic properties are successfully identified. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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