Compressive Constitutive behavior of Metallic Neodymium at different strain rates and temperatures
The dynamic compressive constitutive relation of metallic Neodvmium(Nd) over a wide range of strain rates at different temperatures was determined in the first loading duration of split Hopkinson pressure bar(SHPB) tests. The determined constitutive relation in a certain range of strains for metallic Nd was employed and adjusted in numerically simulating large deformations of Nd specimens generated by the multi-compressive loadings during SHPB tests, and recorded by a high-speed camera. The shearing instabihtv strain in dynamic compressive deformations of metallic Nd was estimated with the adjusted constitutive relation according to the criterion given by Batra et al，and was compared with the average strain of recovered specimens.
金属钕 动态压缩 本构关系 霍普金森压杆测试
Wang Huanran Cai Canyuan Chen Danian Ma Dongfang Hou Yanjun Wu Shanxing
Mechanics and Materials Science Research Center, Ningbo University, Zhejiang 315211, China
国内会议
太原
英文
1-17
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）