Steel and Composite Structures

  • 제23권1호
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  • Pages.131-142
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  • 2017
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Evaluation of limit load analysis for pressure vessels - Part II: Robust methods

  • Chen, Xiaohui (School of Control Engineering, Northeastern University) ;
  • Gao, Bingjun (School of Chemical Engineering and Technology, Hebei University of Technology) ;
  • Wang, Xingang (School of Control Engineering, Northeastern University)
  • 투고 : 2016.05.20
  • 심사 : 2016.11.29
  • 발행 : 2017.01.20
⟨ 이전 논문 다음 논문 ⟩

초록

Determining limit load for a pressure bearing structure using elastic-plastic finite element analysis was computationally very expensive. A series of robust methods using elastic modulus adjustment techniques (EMAP) to identify the limit load directly were proposed. The numerical implementation of the robust method had the potential to be an attractive alternative to elastic-plastic finite element analysis since it was simple, and required less computational effort and computer storage space. Another attractive feature was that the method provided a go/no go criterion for the limit load, whereas the results of an elastic-plastic analysis were often difficult to interpret near the limit load since it came from human sources. To explore the performance of the method further, it was applied to a number of configurations that include two-dimensional and three-dimensional effects. In this study, limit load of cylinder with nozzle was determined by the robust methods.

키워드

과제정보

연구 과제 주관 기관 : Doctoral Scientific Research Foundation of Liaoning Province, Central Universities, National Natural Science Foundation of China

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