Effects of cyclic plastic strains on fracture toughness of structural steels

被引：0
|
作者：
Okura, I [1 ]
Tahara, J [1 ]
Nishioka, T [1 ]
Yasuda, O [1 ]
机构：
[1] Osaka Univ, Dept Civil Engn, Suita, Osaka 565, Japan
来源：
STABILITY AND DUCTILITY OF STEEL STRUCTURES | 1998年
关键词：
brittle fracture; fracture toughness; strain aging; cyclic plastic strain; Charpy V-notch impact lest; girder; Earthquake;
D O I：
10.1016/B978-008043320-2/50037-X
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The effects of cyclic plastic strains on the fracture toughness of structural steels are investigated by Charpy V-notch impart tests. It is shown that strain aging reduces the fracture toughness of structural steels subjected to cyclic plastic strains. Charpy absorbed energy is examined on the top and bottom flanges of a girder of a highway bridge hit by the January 17, 1995 Kobe Earthquake. It is shown that the girder was not subjected to cyclic plastic strains during the Earthquake.
引用
收藏
页码：415 / 424
页数：10
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