Specimen size effects in the cryogenic fracture toughness testing of Fe-12Cr-12Ni-10Mn-0.24N stainless steel

被引：5

作者：

Shindo, Y ^{[1
]}

Horiguchi, K ^{[1
]}

Yamada, J ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2005年 / 73卷 / 01期

关键词：

fracture mechanics; compact tension; finite element analysis; austenitic stainless steel; liquid helium temperature; superconducting fusion magnets;

D O I：

10.1016/j.fusengdes.2004.12.001

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

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 4 K. 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 an: used to supplement the experimental data. © 2004 Elsevier B.V. All Rights reserved.

引用

页码：1 / 7

页数：7

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