소성∙가공 (Transactions of Materials Processing)

  • 제21권6호
  • /
  • Pages.372-377
  • /
  • 2012
  • /
  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지
DOI QR코드

DOI QR Code

2단 인장 실험을 통한 이방성 경화 모델의 평가

Evaluation of Anisotropic Hardening Models using Two-Step Tension Tests

  • 투고 : 2012.07.02
  • 심사 : 2012.08.10
  • 발행 : 2012.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the plastic flow behaviors of extra deep drawing quality (EDDQ) steel subjected to non-proportional strain paths were investigated. Two-step uniaxial tension tests, in which the first step was performed in the rolling direction (RD) and the subsequent test in different directions in $15^{\circ}$ increments from the RD, were conducted. The experiments clearly showed that stress overshooting and strain hardening stagnation were the dominant features, which were captured reasonably well using a recently proposed distortional hardening model.

키워드

참고문헌

  1. J. L. Chaboche, 1986, Time-independent Constitutive Theories for Cyclic Plasticity, Int. J. Plast., Vol. 2, No. 2, pp. 149-188. https://doi.org/10.1016/0749-6419(86)90010-0
  2. F. Barlat, J. J. Gracio, M. G. Lee, E. F. Rauch, G. Vincze, 2011, An Alternative to Kinematic Hardening in Classical Plasticity, Int. J. Plast., Vol. 27, No. 9, pp. 1309-1327. https://doi.org/10.1016/j.ijplas.2011.03.003
  3. F. Barlat, J. C. Brem, J. W. Yoon, K. Chung, R. E. Dick, D. J. Lege, F. Pourboghrat, S. H. Choi, E. Chu, 2003, Plane Stress Yield Function for Aluminum Alloy Sheets - Part 1: Theory, Int. J. Plast., Vol. 19, No. 9, pp. 1297-1319. https://doi.org/10.1016/S0749-6419(02)00019-0
  4. J. W. Lee, M. G. Lee, F. Barlat, 2012, Finite Element Modeling using Homogeneous Anisotropic Hardening and Application to Spring-back Prediction, Int. J. Plast., Vol. 29, pp. 13-41. https://doi.org/10.1016/j.ijplas.2011.07.007
  5. J. A. Nelder, R. Mead, 1965, A Simplex Method for Function Minimization, Comput. J., Vol. 7, No. 4, pp. 308-313. https://doi.org/10.1093/comjnl/7.4.308

피인용 문헌

  1. Spring-back Prediction of DP980 Steel Sheet Using a Yield Function with a Hardening Model vol.25, pp.3, 2016, https://doi.org/10.5228/KSTP.2016.25.3.189