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혼합모드(I+II)에서 피로 하중에 의한 균열진전 거동

Crack Growth Behavior by Fatigue Load under Mixed Mode(I+II)

  • 공병채 (금오공과대학교 대학원 지능기계공학과) ;
  • 최성대 (금오공과대학교 지능기계공학과)
  • 투고 : 2011.10.24
  • 심사 : 2011.11.18
  • 발행 : 2012.04.15

초록

This study looked for Mode status of each for fatigue crack growth behavior about the repeat load of mode I and the static load of mode II. The experiment was performed in the state of the repetition frequency of the sine wave 10Hz, the stress ratio 0.1, maximum load 300kg.f, a static load 0, 100, 200, 300kg.f, As the experimental results, in mode of static load, while the load value increases, the crack growth rate is slower as the energy of a crack mixing grows. Mode I and the power mode II get an influence each other in the direction of crack propagation path, but as they eventually get closer to the breaking point of the crack growth, it is dominated by the mode I.

키워드

참고문헌

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