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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.21 No.6
- 발행연도
- 2018.1
- 수록면
- 717 - 726 (10page)
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초록· 키워드
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Concrete pipelines are the most efficient and safe means for gas and oil transportation over a long distance. The use of nano materials and nono-engineering can be considered for enhancing concrete pipelines properties. the tests show that SiO2 nanoparticles can improve the mechanical behavior of concrete. Moreover, severe hazard for pipelines is seismic ground motion. Over the years, scientists have attempted to understand pipe behavior against earthquake most frequently via numerical modeling and simulation. Therefore, in this paper, the dynamic response of underwater nanocomposite submerged pipeline conveying fluid is studied. The structure is subjected to the dynamic loads caused by earthquake and the governing equations of the system are derived using mathematical model via Classic shell theory and Hamilton’s principle. Navier-Stokes equation is employed to calculate the force due to the fluid in the pipe. As well, the effect of external fluid is modeled with an external force. Mori-Tanaka approach is used to estimate the equivalent material properties of the nanocomposite. 1978 Tabas earthquake in Iran is considered for modelling seismic load. The dynamic displacement of the structure is extracted using differential quadrature method (DQM) and Newmark method. The effects of different parameters such as SiO2 nanoparticles volume percent, boundary conditions, thickness to radius ratios, length to radius ratios, internal and external fluid pressure and earthquake intensity are discussed on the seismic response of the structure. From results obtained in this paper, it can be found that the dynamic response of the pipe is increased in the presence of internal and external fluid. Furthermore, the use of SiO2 nanoparticles in concrete pipeline reduces the displacement of the structure during an earthquake.
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참고문헌 (54)
참고문헌 신청
Abdoun, T.H. / 2009 / Factors influencing the behavior of buried pipelines subjected to earthquake faulting / Soil Dyn. Earthq. Eng. 29:415~427
Alijani, F. / 2014 / Nonlinear vibrations and multiple resonances of fluid filled arbitrary laminated circular cylindrical shells / Compos. Struct. 108:951~962
Amabili, M. / 2008 / Nonlinear Vibrations and Stability of Shells and Plates / Cambridge University Press
Amabili, M. / 2003 / Review of studies on geometrically nonlinear vibrations and dynamics of circular cylindrical shells and panels, with and without fluid-structure interaction / Appl. Mech. Rev. 56:349~381
Amabili, M. / 1999 / Nonlinear dynamics and stability of circular cylindrical shells containing flowing fluid Part I: stability / J. Sound Vib. 225:655~699
Alijani, F. / 2014 / Nonlinear vibrations and multiple resonances of fluid filled arbitrary laminated circular cylindrical shells / Compos. Struct. 108:951~962
Amabili, M. / 2008 / Nonlinear Vibrations and Stability of Shells and Plates / Cambridge University Press
Amabili, M. / 2003 / Review of studies on geometrically nonlinear vibrations and dynamics of circular cylindrical shells and panels, with and without fluid-structure interaction / Appl. Mech. Rev. 56:349~381
Amabili, M. / 1999 / Nonlinear dynamics and stability of circular cylindrical shells containing flowing fluid Part I: stability / J. Sound Vib. 225:655~699
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