(A) new approach to structural availability quantification: its application to slender beam structures considering yield and buckling strength구조가용도 정량화를 위한 새로운 접근법: 항복강도 및 좌굴강도를 고려한 세장보 구조물 적용 사례

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dc.contributor.advisorChang, Dae Jun-
dc.contributor.advisor장대준-
dc.contributor.authorChoung, Choung Ho-
dc.date.accessioned2021-05-11T19:39:40Z-
dc.date.available2021-05-11T19:39:40Z-
dc.date.issued2019-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=871529&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/283352-
dc.description학위논문(박사) - 한국과학기술원 : 해양시스템대학원, 2019.8,[iv, 73 p. :]-
dc.description.abstractThis research introduces the concept of structural availability, which is intrinsically identical to the concept of operational availability in system reliability engineering. Structural availability has the potential to deal with the features of operation and the maintenance of structures, as well as structural integrity, in a quantitative manner, and application of the availability in structural design, as a new design measure, contributes to implementing risk-based design since it can quantitatively indicate overall structural performance in consideration of maintenance policies as well as inherent failure characteristics. In other words, with the structural availability, we can achieve a further optimized and cost-effective design in a practical manner. The new method of structural availability, which is proposed for the yielding and buckling failure of structures, is based on the probabilistic models of structural failure and repair. Stochastic failure model of structures is essential to the structural availability quantification and formulated with structural reliability (or probability of failure), Bernoulli trial assumption, and Poisson approximation. To understand the feasibility of structural availability method, this thesis demonstrates two exemplary slender beam cases that are a longitudinal stiffener of a ship and a simple beam. The calculation results of the example cases illustrate not only the process of quantifying the yielding and buckling availabilities of structures but also the cost-effectiveness assessment on several design options using the structural availability. This thesis is expected to help further understand the feasibility of structural availability application in the actual design process and the risk-based design of structures.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectRisk-based design▼astructural availability▼astructural failure model▼apoisson approximation▼aprobability of failure▼astructural deterioration▼acost-effectiveness▼ayield strength▼abuckling strength-
dc.subject위험도기반설계▼a구조가용도▼a구조파괴모델▼a포아송근사▼a파괴확률▼a구조강도열화▼a비용효율성▼a항복강도▼a좌굴강도-
dc.title(A) new approach to structural availability quantification: its application to slender beam structures considering yield and buckling strength-
dc.title.alternative구조가용도 정량화를 위한 새로운 접근법: 항복강도 및 좌굴강도를 고려한 세장보 구조물 적용 사례-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :해양시스템대학원,-
dc.contributor.alternativeauthor정정호-
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