Bibliographic Details
| Summary: | This paper proposes a real time damage identification method based on the perturbation analysis of the rotation field, which are measured using shearography technique. A particular case of phase modulation method is applied to the interference pattern in order to improve the spatial resolution of the rotation field. A program was developed in Matlab® platform for digital recording the information capture by CCD camera and post-processing the data using dedicated image techniques. The phase filter and unwrapping algorithms were optimized to allow the visualization at video rate the full-field rotations fields. For small internal damages in laminated composite plates, the results show a superior performance of the proposed technique in relation to the classical raw fringe analysis. |
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| Main Authors: | Lopes, Hernani |
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| Other Authors: | Ribeiro, J.E.; Santos, J.V. Araújo; Vaz, M.A.P.; Gomes, J.F. Silva |
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| Subject: | Multi-damage localisation laminated plate Rotation field Speckle shearography |
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| Year: | 2013 |
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| Country: | Portugal |
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| Document type: | conference poster |
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| Access type: | open access |
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| Associated institution: | Instituto Politécnico de Bragança |
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| Language: | Portuguese |
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| Origin: | Biblioteca Digital do IPB |
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