| Autor: |
B. Lamboul, D. Osmont, O. Giraudo |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| Popis: |
This paper presents a method based on the generation of low frequency flexural waves for the detection of disbonds in foam composite assemblies. An imaging procedure based on the shearography technique is proposed for the fast generation of images suitable for nondestructive testing analysis. The method is assessed with calibrated disbond defects in a composite foam core sandwich. The role of local flexural resonances for obtaining clear defect signatures is studied and highlighted using complementary Laser vibrometry data. The minimum defect size for detection is associated with the conditions for exciting the first flexural mode in the defect region. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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