An application of longitudinal elastic waves for investigation of materials under high strain rates using the Hopkinson bar

• Autorzy: Szolc T. , Kowalewski Z. L.
• Konferencja: Symposium “Vibrations In Physical Systems” (26 ; 04-08.05.2014 ; Będlewo koło Poznania ; Polska)
• Języki publikacji: EN

Abstrakty

EN

In the paper there is presented a discrete-continuous model of the Split Hopkinson Pressure Bar (SHPB) for numerical simulations of a dynamic behaviour of material specimens under high strain-rates. For this purpose several material theories describing visco-elasto-plastic properties of the tested specimens can be applied. Using this model impact-type dynamic responses are sought by means of the longitudinal elastic wave analytical solution of the d’Alembert type. The proposed model enables us theoretical strength investigations for various elasto-plastic materials under great deformation velocities as well as structural parameter determination of the real SHPB designed to play a role of the laboratory test-rig.

Słowa kluczowe

EN

Hopkinson bar; elastic wave propagation; d’Alembert solution; numerical simulation

PL

pręt Hopkinsona; propagacja fal sprężystych; rozwiązanie d'Alemberta; symulacja numeryczna

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2014
• Tom: Vol. 26
• Strony: 305--310
• Opis fizyczny: Bibliogr. 7 poz., 1 rys., wykr.

Twórcy

autor

Szolc T.

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, ul. A. Pawińskiego 5B, 02-106 Warszawa

autor

Kowalewski Z. L.

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, ul. A. Pawińskiego 5B, 02-106 Warszawa

Bibliografia

• 1. J. Hopkinson, On the rupture of iron wire by a blow, Proc. Literary and Philosophical Society of Manchester, (1872) 40–45.
• 2. B. Hopkinson, A method of measuring the pressure produced in the detonation of high explosives or by the impact of bullets, Philosophical Transactions of the Royal Society of London 213, (1914) 437–456.
• 3. H. Kolsky, An investigation of the mechanical properties of materials at very high rates of loading, Proc. of the Physical Society 62, (1949) 676–700.
• 4. J. Janiszewski, Investigations of the engineering materials under dynamic loadings, Military Academy of Technology (WAT) Eds., Warsaw 2012. (in Polish)
• 5. T. Szolc, Continuous one-dimensional macro-elements as a natural alternative crack detection tool to the spectral fin. el. meth., Arch. Mech., 59, 6 (2007) 473-499.
• 6. Z. L. Kowalewski, A creep phenomenon in metals. Experiments and modeling, Institute of Fundamental Technological Research Eds., Warsaw 2005. (in Polish)
• 7. L. Dietrich, T. Lekszycki, K. Turski, Problems of identification of mechanical characteristics of viscoelastic composites, Acta Mechanica 126, (1998), 153-167.