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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
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- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.72 No.5
- 발행연도
- 2019.1
- 수록면
- 557 - 568 (12page)
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초록· 키워드
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Accurate modeling of contact interface in bolted joints is crucial in predicting the dynamic behavior for bolted assemblies under external load. This paper presents a contact pressure distribution based non-uniform virtual material method to describe the joint interface of assembly structure, which is connected by sparsely distributed multi-bolts. Firstly, the contact pressure distribution of bolted joints is obtained by the nonlinear static analysis in the finite element software ANSYS. The contact surface around bolt hole is divided into several sub-layers, and contact pressure in each sub-layer is thought to be evenly. Then, considering multi-asperity contact at the micro perspective, the relationship between contact pressure and interfacial virtual material parameters for each sub-layer is established by using the fractal contact theory. Finally, an experimental platform for the dynamic characteristics testing of a beam lap structure with double-bolted joint is constructed to validate the efficiency of proposed method. It is found that the theoretical results are in good agreement with experimental results by impact response in both time- and frequency-domain, and the relative errors of the first four natural frequencies are less than 1%. Furthermore, the presented model is used to examine the effect of rough contact surface on dynamic characteristics of bolted joint.
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참고문헌 (27)
참고문헌 신청
J. Abad / 2012 / Design of experiments and energy dissipation analysis for a contact mechanics 3D model of frictional bolted lap joints / Advances in Engineering Software 45(1):42~53
Farhad Adel / 2017 / A model updating method for hybrid composite/aluminum bolted joints using modal test data / Journal of Sound and Vibration 396:172~185
Muhammad Abid / 2013 / The effect of bolt tightening methods and sequence on the performance of gasketed bolted flange joint assembly / Structural Engineering and Mechanics, An Int＇l Journal 46(6):843~852
Hamid Ahmadian / 2007 / Identification of bolted lap joints parameters in assembled structures / Mechanical Systems and Signal Processing 21(2):1041~1050
Hamid Ahmadian / 2007 / Generic element formulation for modelling bolted lap joints / Mechanical Systems and Signal Processing 21(5):2318~2334
Farhad Adel / 2017 / A model updating method for hybrid composite/aluminum bolted joints using modal test data / Journal of Sound and Vibration 396:172~185
Muhammad Abid / 2013 / The effect of bolt tightening methods and sequence on the performance of gasketed bolted flange joint assembly / Structural Engineering and Mechanics, An Int＇l Journal 46(6):843~852
Hamid Ahmadian / 2007 / Identification of bolted lap joints parameters in assembled structures / Mechanical Systems and Signal Processing 21(2):1041~1050
Hamid Ahmadian / 2007 / Generic element formulation for modelling bolted lap joints / Mechanical Systems and Signal Processing 21(5):2318~2334
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