F-1701 部分非線型解析を用いた応力評価代替基準の開発(S59-1 規格基準の高度化に関連する研究・開発状況(1))(S59 規格基準の高度化に関連する研究・開発状況)

概要

論文の詳細を見る
The Committee on 3-D FEM Stress Evaluation in JPVRC has been active to develop an Alternative Criteria which can be used when the stress classification does not work well. The basic idea of the criteria is to use Limit or Plastic Analysis for primary loads, and to introduce a new criterion, the restriction on cyclic yield region, for stresses due to cyclic loads. When the new criterion is not satisfied, elastic-plastic analysis for the corresponding loading cycles will be performed to assure that there is no significant progressive distortion. The evaluation is followed by Simplified Elastic-Plastic Analysis using K_e factors determined for the real structural model. Here, brief history of the development and consideration on fixing the evaluation limits for cyclic loadings is discussed according to the recent findings.
2001-08-22