Method of Prevention of Fracture of Welded Metal Structural Elements Subjected to Single Dynamic Loading

被引：0
|
作者：
V. I. Kir'yan
S. V. Shamanovskii
机构：
[1] National Academy of Sciences of Ukraine,Paton Electric Welding Institute
来源：
Strength of Materials | 2002年 / 34卷 / 3期
关键词：
structural steels; welded joints; single dynamic loading; fracture toughness; procedure; fracture prevention;
D O I：
10.1023/A:1016210431176
中图分类号：
学科分类号：
摘要：
We propose a method for the assessment of the fracture toughness of structural materials and their welded joints under conditions of single dynamic loading, which is based on the criterion of nonlinear fracture mechanics δcrD. The regularities of the loading rate effect defined by the parameter δ' (the rate of the crack tip opening displacement) on the fracture toughness have been established. A procedure is recommended for prevention of fracture of welded structure elements under conditions of high strain-rate deformation.
引用
收藏
页码：251 / 255
页数：4
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