Dynamic strain distribution of FRP plate under blast loading

T. Saburi; M. Yoshida; S. Kubota

doi:10.1117/12.2271148

20 February 2017 Dynamic strain distribution of FRP plate under blast loading

T. Saburi, M. Yoshida, S. Kubota

Proceedings Volume 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics; 103281N (2017) https://doi.org/10.1117/12.2271148
Event: 31st International Congress on High-Speed Imaging and Photonics, 2016, Osaka, Japan

Abstract

The dynamic strain distribution of a fiber re-enforced plastic (FRP) plate under blast loading was investigated using a Digital Image Correlation (DIC) image analysis method. The testing FRP plates were mounted in parallel to each other on a steel frame. 50 g of composition C4 explosive was used as a blast loading source and set in the center of the FRP plates. The dynamic behavior of the FRP plate under blast loading were observed by two high-speed video cameras. The set of two high-speed video image sequences were used to analyze the FRP three-dimensional strain distribution by means of DIC method. A point strain profile extracted from the analyzed strain distribution data was compared with a directly observed strain profile using a strain gauge and it was shown that the strain profile under the blast loading by DIC method is quantitatively accurate.

Citation Download Citation

T. Saburi, M. Yoshida, and S. Kubota "Dynamic strain distribution of FRP plate under blast loading", Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 103281N (20 February 2017); https://doi.org/10.1117/12.2271148

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KEYWORDS

Digital image correlation

Fiber reinforced polymers

Cameras

Explosives

Video

Image analysis

3D image processing

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