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http://dx.doi.org/10.14775/ksmpe.2018.17.4.064

Flow Stress Determination of Johnson-Cook Model of Ti-6Al-4V Material using 3D Printing Technique  

Park, Dae-Gyoun (Department of Mechanical Engineering, Graduate School, Dong-A UNIV.)
Kim, Tae-Ho (T&SMachining)
Jeon, Eon-Chan (Department of Mechanical Engineering, Dong-A UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.17, no.4, 2018 , pp. 64-69 More about this Journal
Abstract
This paper investigates the compressive deformation behavior of direct metal tooling (DMT), processing titanium alloy (Ti-6Al-4V) parts under high strain loading conditions. Split Hopkinson Pressure Bar (SHPB) experiments were performed to determine the flow stress and the coefficients of the Johnson-Cook model. This model is described as a function of strain, strain rate, and temperature. SHPB experiments were performed to characterize the deformation behavior of specimens made with 3D printers, using Ti-6Al-4V material under high temperature and dynamic loading.
Keywords
3D Printing; Constitutive Equation; Titanium Alloy; Mechanical Properties; Dynamic Behavior; Flow Stress;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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