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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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A Study for Failure Test and Progressive Failure Analysis on Composite Laminates Mechanical Joint

복합재료 적층판 기계적 체결부 파손시험 및 점진적 파손해석에 대한 연구

  • Kwon, Jeong-Sik (Department of Aerospace & Mechanical Engineering, Korea Aerospace University) ;
  • Kim, Jin-Sung (Department of Aerospace & Mechanical Engineering, Korea Aerospace University) ;
  • Yang, Yong-Man (Department of Aerospace & Mechanical Engineering, Korea Aerospace University) ;
  • Lee, Soo-Yong (Department of Aerospace & Mechanical Engineering, Korea Aerospace University)
  • Received : 2016.09.26
  • Accepted : 2016.12.20
  • Published : 2017.01.01
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Abstract

In this paper, the total procedure for composite laminate mechanical joint (ASTM D5961 Proc. A, B) from fixture design to test analysis was showed. Composite laminate mechanical joints were analyzed using the FEM(Finite Element Method) and compared to test results. A progressive failure analysis was applied to FEM to analyze the failure behavior of test specimens. Three failure theories - maximum stress, maximum strain, and Tsai-Wu were applied to FEM to predict test failure load. General parameters for composite laminate joints were reviewed and the differences of bearing strength were compared with major parameters.

복합재료 적층판 기계적 체결부(ASTM D5961 Proc. A, B)에 대하여 치구 설계에서 시험 결과의 해석까지 전체 과정을 제시하였다. 복합재료 적층판 기계적 체결부를 유한요소법을 사용하여 분석하였으며 시험 결과와 비교하였다. 시험편의 파손 거동을 분석하기 위해 점진적 파손해석 방법을 유한요소법에 적용하였다. 시험 파손 하중을 예측하기 위해 3가지 파손이론(최대 응력, 최대 변형률, Tsai-Wu)을 FEM에 적용하였다. 기계적 체결부의 일반적인 변수들을 검토하였으며 주요 변수에 대하여 베어링 강도 차이를 비교하였다.

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References

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