Steel and Composite Structures

  • 제1권3호
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  • Pages.283-294
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  • 2001
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
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Seismic assessment of steel structures through a cumulative damage

  • Perera, R. (Department of Structural Mechanics, Technical University of Madrid (UPM)) ;
  • Gomez, S. (Department of Structural Mechanics, Technical University of Madrid (UPM)) ;
  • Alarcon, E. (Department of Structural Mechanics, Technical University of Madrid (UPM))
  • 발행 : 2001.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present work a constitutive model is developed which permits the assessment of the structural performance through a criterion based on cumulative damage. For it, a damage index is defined and is evaluated through the application of the Miner's rule in low-cycle fatigue. However, the damage index is not considered as a posteriori variable since is incorporated explicitly as an internal variable in the constitutive equations which produces a direct coupling between the damage and the structural mechanical behaviour allowing the possibility of considering as a whole different coupled phenomena. For the elaboration of this damage model, the concepts of the mechanics of continuum medium are applied on lumped dissipative models in order to obtain a coupled simplified model. As a result an elastoplastic model coupled with damage and fatigue damage is obtained.

키워드

참고문헌

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피인용 문헌

  1. Rapid S-N type life estimation for low cycle fatigue of high-strength steels at a low ambient temperature vol.33, pp.6, 2001, https://doi.org/10.12989/scs.2019.33.6.777