Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Effect of Wrinkling on Failure Behavior of Thin Membranes

얇은 막재에서 주름이 파괴거동에 미치는 영향

  • 김영아 (충북대학교 대학원 구조시스템공학과) ;
  • 우경식 (충북대학교 토목공학부)
  • Received : 2011.09.02
  • Accepted : 2011.10.25
  • Published : 2011.11.01
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Abstract

In this paper, the effect of wrinkling on the failure behavior of thin membrane was studied using geometrically nonlinear shell element post-buckling analysis with global-local analysis strategy. In the analysis, double-edge notched and single-edge notched tensile specimen configurations were considered. The analyses were performed for both cases with allowing and suppressing the wrinkling deformation. The results were investigated focusing on the effect of wrinkle development on the variation of J-integral values at the cut tip. The effect of cut lengths and the specimen lengths were also systematically studied.

본 연구에서는 기하학적 비선형 후좌굴해석 및 전역-국지해석을 통하여 얇은 막재에서 주름이 파괴거동에 미치는 영향을 연구하였다. 해석에서 양단노치 및 일단노치를 가지는 사각형 인장시험 시편형상을 고려하였으며 주름이 발생한 경우와 억제된 경우에 대해 각각 해석을 수행하여 그 결과를 비교하였다. 해석결과의 분석을 통하여 주름의 발달에 따라 J-적분값의 변화에 미치는 영향을 조사하였고, 컷 길이에 따른 영향 및 시편형상의 길이 효과에 대해 체계적으로 연구하였다.

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References

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