固/液界面衝突解析モデルによるピッティング損傷評価(オーガナイズドセッション,材料強度と構造設計)

概要

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A liquid-mercury target system for the MW-scale target is being developed in the world. The proton beams bombard the target, negative pressures will be generated between the liquid and solid metal interface by the thermally shocked heat deposition. The negative pressure induces the cavitation imposing microjets and shock waves on localized area at the interface between mercury and the vessel wall to form micropits. Pitting damages will be formed on the internal surface of target vessel by cavitaion micro-bubble collapse. In this study, the microimpact was evaluated inversely from both depth profiles of micropits and impact numerical calculation. The correlations between pit formation, material properties of surface, and micropits were investigated.
社団法人日本機械学会の論文
2004-09-23