抄録
Rare earth based bulk superconductors originally have many voids and cracks. Thus their ultimate tensile strengths are not material constants but apparent ones depending on the voids and cracks in each bulk. In this study, based on the observations of the surface of the actual specimens, artificial samples with voids were generated for numerical stress calculations. The sizes of voids in an artificial specimen were assumed by the probability distribution function expressing the results of the observations, while the locations of voids were randomly assumed. Numerical calculations were repeatedly conducted to obtain the statistical results of the stress concentration factors around voids. The scatter of experimental strength and Young's modulus among the specimens having linear stress-strain curves can be predicted by the evaluations proposed in this study.
本文言語 | 英語 |
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ページ(範囲) | S612-S616 |
ジャーナル | Superconductor Science and Technology |
巻 | 19 |
号 | 7 |
DOI | |
出版ステータス | 出版済み - 2006/07 |
ASJC Scopus 主題領域
- セラミックおよび複合材料
- 凝縮系物理学
- 金属および合金
- 電子工学および電気工学
- 材料化学