シャルピー吸収エネルギと破壊じん性値に対するtan h 曲線近似法の適用

概要

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Curve-fitting regression procedures for toughness data have been examined. The objectives of fitting curve in the context of the study of nuclear pressure vessel steels are (1) convenient summarization of test data to permit comparison of materials and testing methods ; (2) development of statistical base concerning the data ; (3) the surveying of the relationships between charpy data and fracture toughness data ; (4) estimation of fracture toughness level from charpy absorbed energy data. The computational procedures using the tanh function have been applied to the toughness data (charpy absorbed energy, static fracture toughness, dynamic fracture toughness, crack arrest toughness) of A 533 B cl.1 and A508 cl.3 steels. The results of the analysis shows the statistical features of the material toughness and gives the method for estimating fracture toughness level from charpy absorbed energy data.
一般社団法人日本機械学会の論文
1985-01-25