Effect of irradiation creep, swelling, wall erosion and embrittlement on the fatigue life of a tokamak first wall
Conference
·
OSTI ID:6086983
A lifetime methodology has been developed which couples the long-term stress history for a generic first wall element to a two-dimensional fatigue crack growth calculation, while including, in a self-consistent manner, the detrimental effects of radiation damage. The reduction in fracture toughness due to embrittlement can reduce lifetimes by as much as a factor of 10 by accelerating stage II fatigue crack growth and enhancing the potential for brittle fracture. Swelling and irradiation creep appear not to be life-limiting, and a certain amount of wall erosion is found to enhance first wall lifetimes.
- Research Organization:
- Wisconsin Univ., Madison (USA). Dept. of Nuclear Engineering
- DOE Contract Number:
- AC02-78ET52048
- OSTI ID:
- 6086983
- Report Number(s):
- DOE/ET/52048-19; CONF-810831-59; UWFDM-433; ON: DE82000907
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
CRACKS
CREEP
EMBRITTLEMENT
EROSION
FATIGUE
FIRST WALL
MECHANICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SWELLING
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700201* -- Fusion Power Plant Technology-- Blanket Engineering
CRACKS
CREEP
EMBRITTLEMENT
EROSION
FATIGUE
FIRST WALL
MECHANICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SWELLING
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS