Science and Technology of Energetic Materials

Vol.71, No.3 (2010)

Research paper

Empirical equation to predict the deformation of a steel pipe under an internal blast load
Shiro Kubota, Tei Saburi, Yuji Ogata, andGanda M. Simangunsong


A series of internal blast loading tests on steel pipes have been conducted. The specimens are Japanese Industrial standards with ratio of length to diameter of one. On the basis of experimental results we found on an empirical relation between the deformation and the scaled distance, which is the pipe radius divided by the 1/3rd power of the amount of explosive. The empirical equation was formulated from the experimental results and was also evaluated using both experimental results and numerical simulations. The proposed equation can predict the amount of strain or deformation for an arbitrary amount of explosive and size of steel pipe.


steel pipe deformation, blast load, scaling law.

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