[S8] S8.Materials DX for the research and development of structural materials for extreme environment (I)(2)

[S8.22] Development of Tandem Bayesian Model for Searching Practical Welding Conditions Aimed at Prolonging Creep Life and Application to Actual Welding

*Hitoshi IZUNO¹, Masahiko Demura¹, Satoshi Minamoto¹, Junya Sakurai¹, Masayoshi Yamazaki, Kenji Nagata¹, Yoh-ichi Mototake², Daisuke Abe³, Keisuke Torigata³ (1. NIMS, 2. Hitotsubashi University, 3. IHI Corporation)

Keywords:heat resistant steel、weld joint、creep property、tandem bayesian model、practical welding condition、reverse problem

継手クリープ寿命の長期化を目指し，実用的な溶接条件として溝開先を種々の積層数で溶接する条件の探索を，HAZ形状を媒介としたPSPP連関によるタンデム型ベイズモデルを用いた逆問題として取り組んだ．