Expansion the scope of application of stands based on the split Hopkinson bar
The relevance of this work lies in the need to test low-density materials for dynamic compression in a laboratory equipped with a stand with a split Hopkinson rod. The purpose of the work is to modernize the test bench to enable the above tests, as well as to develop other ways to use benches of this type. The technical solutions proposed in the article can be applied in the field of testing materials and products subjected to extreme mechanical stress.
Keywords: split Hopkinson bar, Kolsky method, dynamic compression, testing, inertial loading
References
- A. M. Bragov, A.K. Lomunov. Using the Kolsky method to study the processes of high-speed deformation of materials of various physical nature: monograph. Nizhny Novgorod: Publishing house of UNN, 2017. 148 p.
- G. Kolsky. Stress waves in solids. M.: Publishing house of foreign literature, 1955. 194 p.
- A. Yu. Kolyvanov, M. F. Zharkoy. Pneumatic unit for accelerating the striker of a waveguide shock stand//Innovative technologies and special-purpose technical means. Proceedings of the X11 All-Russian Scientific and Practical Conference in 2 volumes. Vol. 2. Library of the journal «Voenmeh. Bulletin of BSTU», 2020.
- A. Yu. Kolyvanova. A method for measuring shock acceleration reproduced by a waveguide shock stand using a strain gauge//Fundamental principles of ballistic design: VIII All-Russian scientific and technical conference. St. Petersburg: Publishing house of BSTU «Voenmeh» n. a. D. F. Ustinova, 2022. P. 75.
- M. L. Daichik. Methods and means of full-scale strain gauge: handbook. M.: Mashinostroenie, 1989.
- GOST R 53190-2008 «Methods of testing for resistance to mechanical external influencing factors of machines, devices and other technical products. Impact tests with reproduction of the shock spectrum». M.: Publishing house of standards, 2008.
- V. S. Pellinets. Measurement of shock accelerations. Moscow: Publishing House of Standards, 1975. 288 p.
