Experimental Determination of the Rate of Crack Branching in Steel.

Authors :: Alekseev, A. A.
Bol'shev, K. N.
Ivanov, V. A.
Syromyatnikova, A. S.
Bol'shakov, A. M.
Ivanov, A. R.
Source :: Russian Metallurgy (Metally); Oct2020, Vol. 2020 Issue 10, p1222-1224, 3p
Publication Year :: 2020
Abstract: A series of internal-pressure failure tests of steel thin-walled cylindrical shells (vessels) is carried out to measure the crack growth rate in the course of breaking current-conducting strips. The experiments use a specially designed measuring setup based on a precision converter of the signals from resistance thermometers and Terkon thermocouples interfaced with a computer. The crack velocity is measured during straight-line crack propagation and crack branching. [ABSTRACT FROM AUTHOR]