ファジィ確率に基づく損傷を受けた不静定構造物の信頼性解析法(<小特集>信頼性工学小特集)

概要

論文の詳細を見る
This paper attempts to apply the concept of fuzzy sets theory to the reliability analysis of redundant structures with damage. Damage state is represented in terms of fuzzy sets which specify several linguistic variables such as "severely damaged", "moderately damaged", "slightly damaged", etc. In the formulation of the reliability analysis, information regarding the damage state can be introduced coupling with the PNET method. While the PNET method is useful to calculate the system reliability of structures, it requires to identify all the possible failure mechanisms. As the number of failure mechanisms increases, it becomes more difficult to find all the possible failure mechanisms. To overcome this problem, we employ a technique proposed by Ishikawa et al. which can provide us of the sufficient number of dominant failure mechanisms. A numerical example is presented to illustrate the method proposed herein.
社団法人日本材料学会の論文
1988-09-15