Determination of 2A16 constitutive model - Details

author：

Deng, Jianghua (Deng, Jianghua.) ^[1] (Scholars：邓将华) | Tang, Chao (Tang, Chao.) ^[2] | Zhan, Yanran (Zhan, Yanran.) ^[3] (Scholars：詹艳然) | Jiang, Xingying (Jiang, Xingying.) ^[4]

Indexed by：

EI Scopus

Abstract：

The　stress-strain　curves　of　2A16　under　different　strain　rate　range　(10-3s-1-103s-1)　and　different　temperature　range　(293K-673K)　were　obtained　through　the　quasi-static　compression　test　and　SHPB　test　by　experimental　method.　The　parameters　were　determined　based　on　Johnson-Cook　model　and　the　strain　rate　hardening　term　in　them　was　modified.　The　results　show　that　2A16　is　a　kind　of　strain　rate　and　sensitive　temperature　materials.　The　flow　stress　increases　with　strain　rate　increasing,　while　that　decreases　with　temperature　increasing.　The　deviation　is　large　between　the　unamended　Johnson-Cook　constitutive　model　and　test　data,　while　the　modified　constitutive　model　is　a　good　agreement　with　experimental　results.　And　the　study　is　a　preparation　for　the　numerical　simulation　of　2A16　rivet　electromagnetic　riveting.　©　(2013)　Trans　Tech　Publications,　Switzerland.

Keyword：

Compression testing Constitutive models Electromagnetism Riveting Strain rate Stress-strain curves Temperature

Community：

[ 1 ] [Deng, Jianghua]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, 350108, China
[ 2 ] [Tang, Chao]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, 350108, China
[ 3 ] [Zhan, Yanran]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, 350108, China
[ 4 ] [Jiang, Xingying]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, Fujian, 350108, China