Experimental and Computational Study of Quasispherical Compression of a Copper Shell Loaded by the Detonation of a Plastic Explosive Layer
V. A. Arinin1, V. V. Burtsev1, A. L. Mikhailov1,2, A. M. Podurets1,2, A. V. Rudnev1, M. A. Syrunin1,2, I. A. Tereshkina1,2, B. I. Tkachenko1, M. I. Tkachenko1, I. R. Trunin1,2, A. P. Tsoi1, I. V. Shiberin1
1Institute of Experimental Physics (VNIIEF), Russian Federal Nuclear Center, Sarov, 607190 Russia
2Sarov Physics and Technology Institute, the Branch of the National Research Nuclear University “MIPhI” Sarov, 607186 Russia
Keywords: оболочка, квазисферически-симметричное нагружение, протонографическая регистрация, микроструктура, откольное разрушение, shell, quasispherical symmetric loading, proton radiography, microstructure, spall fracture
Abstract
This work presents the results of experiments on the compression of a spherical copper shell loaded by the detonation of a plastic explosive layer. A U-70 accelerator is used for radiographic recording of the convergence of the shell to the center, and metallographic analysis of the copper shell preserved after the experiment is performed. The results of multiframe proton radiography of the convergence of the inner boundary of the copper shell to the center are compared with the results of numerical simulations.
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