New development of thermographic NDT for laminated composites using contact cooling of IR-transmissive optical solid

Takahide Sakagami; Keiji Ogura

doi:10.1117/12.163833

3 December 1993 New development of thermographic NDT for laminated composites using contact cooling of IR-transmissive optical solid

Takahide Sakagami, Keiji Ogura

Author Affiliations +

Proceedings Volume 2001, Nondestructive Inspection of Aging Aircraft; (1993) https://doi.org/10.1117/12.163833
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

The thermographic NDT using a contact cooling technique of an IR transmissive optical solid was newly developed for the defect inspection of the laminated composites. The resolution of the defect inspection using the proposed contact cooling technique was examined both in the computational simulation and the experimental study. The thermal transfer technique for the samples with the less emissivity was developed together with the contact cooling technique using the IR transmissive solid. The usefulness of the thermal transfer technique was demonstrated in the thermographical inspection of the delaminated defects in laminated FRP and the debonded defects in copper-polyimide laminates with less emissive bare surfaces.

Citation Download Citation

Takahide Sakagami and Keiji Ogura "New development of thermographic NDT for laminated composites using contact cooling of IR-transmissive optical solid", Proc. SPIE 2001, Nondestructive Inspection of Aging Aircraft, (3 December 1993); https://doi.org/10.1117/12.163833

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