شماره ركورد كنفرانس :
4603
عنوان مقاله :
Experimental Study of Dynamic Behavior of C10200 by Split Hopkinson Tensile Bar Test
پديدآورندگان :
Sadeghi Chahardeh A. R. Mechanical Engineering Department, Sharif University of Technology, Tehran 11365-9567, Iran , Naghdabadi R naghdabd@sharif.edu Mechanical Engineering Department and Institute for Nano Science and Technology, Sharif University of Technology, Tehran 11365-9567, Iran
كليدواژه :
Split Hopkinson Tensile Bar , High Strain Rate , Johnson , Cook Model , C10200
عنوان كنفرانس :
كنفرانس بين المللي دو سالانه مكانيك جامدات تجربي
چكيده فارسي :
In this paper, by using split Hopkinson indirect tensile bar test, the dynamic behavior of C10200 copper under different strain rates is studied. After post-processing achieved data in program, stress-strain curves of copper under different strain rate are presented. Using these curves, Johnson-Cook model’s constants have been determined. According to these experiments, it is observed that mechanical behavior of copper under different strain rates changes. In fact, as the strain rate increases the flow stress and the uniform elongation increase. The results reveal that by increasing the gage length of specimens, the deformation in the gage length region becomes nonhomogeneous.
