한국재료학회지 (Korean Journal of Materials Research)

  • 제27권1호
  • /
  • Pages.19-24
  • /
  • 2017
  • /
  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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Ti-6Al-4V 변형률 속도 변화에 따른 인장, 압축형 JC 구성방정식 변수의 변화

Differences on Tension, Compression JC Constitutive Equation Parameter of Strain Rate Effect for Ti-6Al-4V

  • 우상현 (과학기술연합대학원대학교 무기체계공학과) ;
  • 이창수 (국방과학연구소 제4기술연구본부) ;
  • 박이주 (과학기술연합대학원대학교 무기체계공학과)
  • Woo, Sang-Hyun (Weapon Systems Engineering, Korea University of Science and Technology (UST)) ;
  • Lee, Chang-Soo (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Park, Lee-Ju (Weapon Systems Engineering, Korea University of Science and Technology (UST))
  • 투고 : 2016.11.03
  • 심사 : 2016.11.18
  • 발행 : 2017.01.27
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초록

This paper is concerned with a test method that can be used to investigate the parameters of the Johnson-Cook constitutive model. These parameters are essential for accurately analyzing material behavior under impact loading conditions in numerical simulation. Ti-6Al-4V alloy (HCP crytal structure) was used as a specimen for the experiments. In the $10^{-3}-10^3/s$ strain rate range, three types of experimental methods (convention, compression and tension) were employed to compare the differences using MTS-810, SHPB and SHTB. Finite element analysis results when applying these parameters were displayed along with the experiment results.

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참고문헌

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