Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
권호 표지

Crack Growth Behavior of Tensile Overload for Small Load Amplitude

하중진폭이 작은 인장과대 하중의 균열성장 거동

  • 유헌일 (국민대학교 기계자동차공학부)
  • Published : 1998.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper examines the crack growth behavior of 7075-T651 aluminum alloy for small tensile overload under high-low block loading condition. The cantilever beam type specimen with a chevron notch is used in this study. The crack growth and closure are investigated by compliance method. The applied initial stress ratios are R=-0.5 R=0.0 and R=0.25 Crack length, effective stress intensity factor range, ratio of effective stress intensity factor range and crack growth rate etc, are inspected with fracture mechanics estimate.

Keywords

References

  1. Fatigue Crack Growth under Variable Amplitude Loadings Jono, M.
  2. ASME. Transaction Journal of Basic Engineering v.94 Spectrum Loading and Crack Growth Wei, R. P.;Stephens, R. I.
  3. Proc. ICF-5 An Estimation Method of Fatigue Crack Propagation Rate under Varying Loading Conditions of Low Stress Intensity Level Kikukawa, M.;Jono, M.;Kondo, Y.
  4. ASTM STP 486 The Singnificance of Fatigue Crack Closure W. Elber
  5. Transient Crack Growth Behavior under Two-step Varying Loads, Fatigue 96 no.1 Katoh, Y.;Ko, H. N.;Tanaka, T.;Nakayama,H.
  6. 大韓機械學會論文集 v.13 no.1 小型動電刑 굽힘 疲勞試驗機의 製作 宋智浩;辛龍承;林允洙
  7. 破壞力學試驗法 國尾武;中澤一;林郁彦;岡村弘之
  8. Engineering Fracture Mechanics v.22 no.6 An Experimental and Numerical Study of Crack Closure A. F. Blom;D. K. Holm
  9. Trans. ASME. J. Basic Eng. v.D85 A Critical Analysis of Crack Propagation Laws P. C Paris;F. Erdogan
  10. 材料 v.9 no.276 除荷彈性 コンプライアンス법による低進展速度領域における疲勞き裂進展速度とき裂開閉口擧動の測定 菊川眞;城野政弘;田中建一;高谷勝