A Novel Impact Tension Testing for OFHC Copper Bars under Local Strain Controlled  

作　　者：MA Dong-Fang HOU Yan-Jun CHEN Da-Nian WU Shan-Xing WANG Huan-Ran 

机构地区：[1]Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211

出　　处：《Chinese Physics Letters》2011年第1期156-159,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10872100, Graduate Student Innovative Scientific Research Project of Zhejiang Province under Grant No YK2008045, Graduate Student Innovative Scientific Research Project of Ningbo University, and the K.C.Wong Magna Fund in Ningbo University.

摘　　要：A novel high-speed tensile facility （HSTF） with special fixture is applied to research the dynamic failure char- acteristics of oxygen-free higfl-conductivity （OFHC） copper bars at different levels of strain. The experimental tests are numerically simulated involving void evolution, It is indicated that the localized strains at necking region computed with the adjusted Johnson Cook model and the Zerilli Armstrong model are consistent with the experimental results.A novel high-speed tensile facility （HSTF） with special fixture is applied to research the dynamic failure char- acteristics of oxygen-free higfl-conductivity （OFHC） copper bars at different levels of strain. The experimental tests are numerically simulated involving void evolution, It is indicated that the localized strains at necking region computed with the adjusted Johnson Cook model and the Zerilli Armstrong model are consistent with the experimental results.

关 键 词：Condensed matter: structural mechanical & thermal 

分 类 号：TG291[金属学及工艺—铸造] TU441[建筑科学—岩土工程]