Smart Structures and Systems

  • 제27권3호
  • /
  • Pages.421-434
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  • 2021
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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

Limit load, shakedown and ratchet analysis of pressurized lateral nozzle

  • Chen, Xiaohui (School of Control Engineering, Northeastern University) ;
  • Zhuang, Kunmin (School of Control Engineering, Northeastern University) ;
  • Zhu, Xuanchen (Department of Mechanical & Aerospace Engineering, University of Strathclyde) ;
  • Chen, Haofeng (Department of Mechanical & Aerospace Engineering, University of Strathclyde)
  • 투고 : 2019.08.29
  • 심사 : 2020.12.08
  • 발행 : 2021.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper evaluates the limit load, shakedown limit and ratchet limit of the oblique nozzle based on the linear matching method (LMM). In order to study the influencing factors of the limit load, shakedown limit and ratchet limit of the oblique nozzle, oblique nozzle models with different dip angles, diameter-to-thickness ratios of the oblique nozzle and diameter-to-thickness ratios of the main pipe are established, respectively. Firstly, the limit load, shakedown limit and ratchet limit of the oblique nozzle are studied. At the same time, the influence of the loading mode on the shakedown limit and ratchet limit is also studied. Secondly, oblique nozzles with different defect lengths, widths and depths are established, respectively. The influence of loading paths on shakedown limit and ratchet limit of oblique nozzles with defects are also studied. Finally, shakedown limit and ratchet limit diagrams are obtained based on linear matching method. The correctness of shakedown limit and ratchet limit diagrams is validated by ABAQUS incremental elastic-plastic analysis.

키워드

과제정보

This work was partly supported by the Natural Science Foundation of Hebei Province of China (No. E2018501022), China Postdoctoral Science Foundation Funded Project (No. 2017M610171) and Fundamental Research Funds for the Central Universities (No. N182304009).

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