Abstract:
In the development of specialized explosion-proof chambers subject to increased requirements for strength reliability, an important issue is the choice of the material of the power block subjected to pulsed (dynamic and shock-wave) loads. As a rule, such structures are manufactured from industrial pipes of low alloy steel of various standard sizes. This always involves the question of choosing the steel grade, especially at the stage of computational justification of their explosion resistance, since the dynamic strength characteristics of the pipe material is generally unknown. This paper presents for the first time the results of a study of the static, dynamic, and shock-wave compressive and tensile strengths of 17G1S, 09G2S, and 10G2FBYu pipe steel of K60 strength class. In addition, comparative data on the explosion resistance at strain rates of $(2\div5)\cdot10^2$ c$^{-1}$ of pipes from 09G2S and 10G2FBYu steels.
