Quantitative nondestructive evaluation of delamination damage in CFRP pressure vessels for space use

Takahide Sakagami; Shiro Kubo; Yukio Hyodo; Toshio Ogasawara; Takashi Nishimura; Daisuke Imanishi; Matt Schmitt

doi:10.1117/12.665388

18 April 2006 Quantitative nondestructive evaluation of delamination damage in CFRP pressure vessels for space use

Takahide Sakagami, Shiro Kubo, Yukio Hyodo, Toshio Ogasawara, Takashi Nishimura, Daisuke Imanishi, Matt Schmitt

Proceedings Volume 6205, Thermosense XXVIII; 62051A (2006) https://doi.org/10.1117/12.665388
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Pulse heating infrared thermography method was applied for NDE of low energy impact delamination damages in test sample of CFRP pressure vessels employed for space. Size and depth of delamination damage in CFRP pressure vessel samples were quantitatively determined from sequential temperature distribution data after pulse heating using data processing methods developed by the present authors. The Fourier analyses were applied to the temperature decent curves after pulse heating obtained at each pixel of the sequential thermal images. Coefficients of the Fourier series were calculated from temperature decent curves, and they were effectively used to determine defect parameters such as the defect area and the defect depth. The feasibility of the proposed nondestructive inspection techniques was demonstrated by the experimental investigations using CFRP pressure vessel test samples.

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Takahide Sakagami, Shiro Kubo, Yukio Hyodo, Toshio Ogasawara, Takashi Nishimura, Daisuke Imanishi, and Matt Schmitt "Quantitative nondestructive evaluation of delamination damage in CFRP pressure vessels for space use", Proc. SPIE 6205, Thermosense XXVIII, 62051A (18 April 2006); https://doi.org/10.1117/12.665388

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