High-speed photography of dynamic photoelastic experiment with a highly accurate blasting machine

Kunihisa Katsuyama; Yuji Ogata; Yuji Wada; K. Hashizume

doi:10.1117/12.209557

30 May 1995 High-speed photography of dynamic photoelastic experiment with a highly accurate blasting machine

Kunihisa Katsuyama, Yuji Ogata, Yuji Wada, K. Hashizume

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209557
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

A high accurate blasting machine which could control 1 microsecond(s) was developed. At first, explosion of a bridge wire in an electric detonator was observed and next the detonations of caps were observed with a high speed camera. It is well known that a compressed stress wave reflects at the free face, it propagates to the backward as a tensile stress wave, and cracks grow when the tensile stress becomes the dynamic tensile strength. The behavior of these cracks has been discussed through the observation of the dynamic photoelastic high speed photography and the three dimensional dynamic stress analysis.

Citation Download Citation

Kunihisa Katsuyama, Yuji Ogata, Yuji Wada, and K. Hashizume "High-speed photography of dynamic photoelastic experiment with a highly accurate blasting machine", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209557

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