Influence of preloading on formation of adiabatic localized shear in copper

Autor: Victor Pushkov, K.P. Novikov, A.N. Tsibikov, A. M. Podurets, A. V. Yurlov, M.A. Pukhov
Rok vydání: 2012
Předmět:
Zdroj: EPJ Web of Conferences, Vol 26, p 02001 (2012)
ISSN: 2100-014X
DOI: 10.1051/epjconf/20122602001
Popis: This paper is devoted to results of investigation of localized shear in as-received copper, and which was subjected to preliminary quasi-isentropic shock loading by the pressure of ∼ 30 GPa. Tests were performed with hat-shaped samples by the Split Hopkinson Pressure Bar method (SHPB). The authors present estimation of quantitative characteristics of localized shear in tested materials (shear stress, relative shear strain, shear band width, relative strain rate in shear band). The paper includes data of metallographic investigations of the tested samples. Also the authors made an attempt of numerical simulation of stress field change during formation.
Databáze: OpenAIRE