Determination of TA1 constitutive relation - Details

author：

Deng, J.-H. (Deng, J.-H..) ^[1] | Tang, C. (Tang, C..) ^[2] | Li, C.-F. (Li, C.-F..) ^[3] | Yu, H.-P. (Yu, H.-P..) ^[4] | Jiang, H.-W. (Jiang, H.-W..) ^[5]

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Scopus PKU CSCD

Abstract：

The　stress-strain　curves　of　TA1　under　different　strain　rate　ranges　(10-3　s-1~103　s-1)　and　different　temperature　ranges　(293　K~873　K)　were　obtained　through　the　quasi-static　compression　test　and　split　Hopkinson　pressure　bar　test.　The　parameters　of　Johnson-Cook　model　were　determined　and　the　strain　rate　hardening　term　was　modified.　The　results　showed　that　TA1　was　a　kind　of　strain-rate　sensitive　materials.　The　flow　stress　increased　with　the　increase　of　strain　rate,　while　decreased　with　the　increase　of　temperature.　The　un-amended　Johnson-Cook　constitutive　relation　had　a　large　deviation　from　the　test　data.　The　modified　constitutive　relation　had　a　good　agreement　with　experimental　results.

Keyword：

Constitutive relation; SHPB; Strain rate; TA1

Community：

[ 1 ] [Deng, J.-H.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
[ 2 ] [Tang, C.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
[ 3 ] [Li, C.-F.]School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
[ 4 ] [Yu, H.-P.]School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
[ 5 ] [Jiang, H.-W.]School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Reprint 's Address：

[Deng, J.-H.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China

Email：

jhdeng608@126.com

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Source ：

Journal of Plasticity Engineering

ISSN： 1007-2012

Year： 2012

Issue： 6

Volume： 19

Page： 114-117

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SCOPUS Cited Count： 4

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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