Structural Engineering and Mechanics

  • 제78권6호
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  • Pages.681-689
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  • 2021
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Shakedown analysis of trusses under cyclic thermal load with temperature-dependent yield stress

  • Leu, S.Y. (Department of Aviation Mechanical Engineering, China University of Science and Technology) ;
  • Chen, Y.H. (Department of Aviation Mechanical Engineering, China University of Science and Technology) ;
  • Liao, K.C. (Department of Biomechatronics Engineering, National Taiwan University)
  • 투고 : 2020.12.05
  • 심사 : 2021.04.03
  • 발행 : 2021.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The paper aims to revisit shakedown analysis involving temperature-dependent yield stress. Formulations and numerical implementations are focused on truss structures subjected to cyclic thermal and constant mechanical loads. In particular, a systematic approach based on the duality relationship of l∞-norm and l1-norm is established to state the dual formulations for static and kinematic shakedown analysis of truss structures. Illustrative examples are involved statically indeterminate three-bar and five-bar trusses, respectively. Numerical effort is made to acquire shakedown limit temperature by using the linprog function provided by MATLAB. Furthermore, the finite-element analysis using ABAQUS is also performed for rigorous comparisons.

키워드

과제정보

The authors gratefully acknowledges the financial support by the Ministry of Science and Technology in Taiwan.

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