PSI - Issue 20

Mikhail Kelner et al. / Procedia Structural Integrity 20 (2019) 119–123 Mikhail Kelner et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 3. The dependence of the size of the cavity formed after the shell destruction from tensile strength of the shell material.

The use of materials with tensile strength exceeding 520 MPa causes the destruction of the detonator shell, but the use of weaker materials can ensure its integrity. To assess the shell material influence on the level of the destruction caused by explosion products, the loaded product destruction efficiency/shell material tensile strength dependence was built, see Fig. 4. The shell destruction efficiency is determined by formula: (1)

Fig. 4. Loaded product destruction efficiency versus shell material tensile strength dependence.