EPJ Web of Conferences
Volume 26, 2012DYMAT 2012 - 10th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Number of page(s)||4|
|Published online||31 August 2012|
Influence of preloading on formation of adiabatic localized shear in copper
Russian Federal Nuclear Center – VNIIEF, 607190, Sarov, Nizhniy Novgorod region, Russia
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.
© Owned by the authors, published by EDP Sciences, 2012
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