塑性域における局部破損評価法の クリープ域への拡張に関する検討
英字タイトル:
Investigation on extension of local failure evaluation method in plastic region to creep region
著者:
吉田 瑞城 Mizuki YOSHIDA 坂口 貴史 Takashi SAKAGUCHI 佐藤 拓哉 Takuya SATO 笠原 直人 Naoto KASAHARA
発刊日:
公開日:
CreepDuctile fractureElastic-plasticLocal failureMulti-axial stress
Investigation on extension of local failure evaluation method in plastic region to creep region
著者:
吉田 瑞城 Mizuki YOSHIDA 坂口 貴史 Takashi SAKAGUCHI 佐藤 拓哉 Takuya SATO 笠原 直人 Naoto KASAHARA
発刊日:
公開日:
カテゴリ: 第14回
キーワードタグ:CreepDuctile fractureElastic-plasticLocal failureMulti-axial stress
概要
According to the design standards of nuclear equipment, ductile fracture is assumed as the failure mode due to monotonic loading in the elastic-plastic region, but it is known that failure mode called local failure occurs at the part with high stress triaxiality. In the past, the authors have proposed a fracture surface that can uniformly evaluate transition of failure modes from ductile fracture to local failure. This research proposes the extension method of the fracture surface to creep region.
