Smart Structures and Systems

  • 제19권5호
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  • Pages.473-485
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  • 2017
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Effects of temperature on the ratcheting behavior of pressurized 90° elbow pipe under force controlled cyclic loading

  • Chen, Xiaohui (School of Control Engineering, Northeastern University) ;
  • Wang, Xingang (School of Control Engineering, Northeastern University) ;
  • Chen, Xu (School of Chemical Engineering and Technology, Tianjin University)
  • 투고 : 2016.03.19
  • 심사 : 2017.04.27
  • 발행 : 2017.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Ratcheting behavior of $90^{\circ}$ elbow piping subject to internal pressure 20 MPa and reversed bending 20 kN was investigated using experimental method. The maximum ratcheting strain was found in the circumferential direction of intrados. Ratcheting strain at flanks was also very large. Moreover, the effect of temperature on ratcheting strain of $90^{\circ}$ elbow piping was studied through finite element analysis, and the results were compared with room condition ($25^{\circ}$). The results revealed that ratcheting strain of $90^{\circ}$ elbow piping increased with increasing temperature. Ratcheting boundary of $90^{\circ}$ elbow piping was determined by Chaboche model combined with C-TDF method. The results revealed that there was no relationship between the dimensionless form of ratcheting boundary and temperature.

키워드

과제정보

연구 과제 주관 기관 : Central Universities , National Natural Science Foundation of China, China Scholarship Council (CSC)

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