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논문 기본 정보

자료유형
학술저널
저자정보
Myungjun Kim (Korea Aerospace University) Yongha Kim (Korea Aerospace University) Pyeunghwa Kim (Korea Aerospace University) Jungsun Park (Korea Aerospace University)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.17 Number.3
발행연도
2016.9
수록면
332 - 340 (9page)

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초록· 키워드

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A design optimization is performed for the double-bolted joint in cylindrical composite structures by using a simplified analytical method. This method uses failure criteria for the major failure modes of the bolted composite joint. For the double-bolted joint with a zigzag arrangement, it is necessary to consider an interaction effect between the bolt arrays. This paper proposes another failure mode which is determined by angle and distance between two bolts in different arrays and define a failure criterion for the failure mode. The optimal design for the double-bolted joint is carried out by considering the interactive net-tension failure mode. The genetic algorithm (GA) is adopted to determine the optimized parameters; bolt spacing, edge distance, and stacking sequence of the composite laminate. A purpose of the design optimization is to maximize the burst pressure of the cylindrical structures by ensuring structural integrity. Also, a progressive failure analysis (PFA) is performed to verify the results of the optimal design for the double-bolted joint. In PFA, Hashin 3D failure criterion is used to determine the ply that would fail. A stiffness reduction model is then used to reduce the stiffness of the failed ply for the corresponding failure mode.

목차

Abstract
1. Introduction
2. Problem Statement
3. Failure modes and analysis for composite double-bolted joints
4. Optimal design of composite doubleboltedjoints
5. Numerical verification
6. Conclusions
References

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