| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10288256 | Fusion Engineering and Design | 2005 | 7 Pages |
Abstract
This paper examines the effects of test specimen size on the cryogenic fracture toughness properties of a nitrogen-strengthened austenitic stainless steel for superconducting magnet structures in fusion energy systems. Single-specimen J-integral tests were performed on CT (compact tension) specimens with and without side-grooves in liquid helium at 4âK. The aspect ratio (specimen width to thickness) and thickness were varied. A three-dimensional finite element analysis was also conducted to investigate the effects of specimen thickness and side-groove on the through thickness distributions of the J-integral values. The results of the finite element analysis are used to supplement the experimental data.
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Authors
Y. Shindo, K. Horiguchi, J. Yamada,