Probabilistic lifetime evaluation of the fusion first wall

H. Oomura, T. Takagi, H. Hashizume, K. Miya

研究成果: Article査読

抄録

This paper describes a numerical analysis used to evaluate the lifetime of a first wall of a fusion reactor based on a probabilistic approach. Very high heat flux is deposited on the first wall during a major plasma disruption. Melting, evaporation, and resolidification of the material result in metallurgical and mechanical deterioration with high residual stresses and small cracks. It is very important to investigate the severity of the consequences and to evaluate the lifetime of the wall. In this paper, the occurrence of plasma disruptions and the length of resulting cracks are determined by random numbers. More than 400 histories are analyzed to determine the probabilistic distribution of crack length. The prediction of the lifetime of the wall is also presented.

本文言語English
ページ(範囲)69-74
ページ数6
ジャーナルFusion Engineering and Design
9
C
DOI
出版ステータスPublished - 1989
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • 原子力エネルギーおよび原子力工学
  • 材料科学(全般)
  • 機械工学

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