The structural relaxation and anisotropy of the spring-back in metals

被引:0
|
作者
Usov, V. V. [1 ]
Novikov, V. V. [2 ]
Shkatulyak, N. M. [1 ]
Titenkov, A. N. [1 ]
Mamay, D., V [1 ]
机构
[1] South Ukrainian State Pedag Univ, 26 Staroportofrankovskaya St, UA-65020 Odesa, Ukraine
[2] Odesa Natl Polytech Univ, UA-65044 Odessa, Ukraine
来源
FUNCTIONAL MATERIALS | 2007年 / 14卷 / 01期
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The spring-back phenomenon in rolled copper and aluminum sheets has been studied in experiment. The time dependences of strain at bending of specimens under permanent load have been described by power functions with a fractional index. The anisotropy of the spring-back phenomenon has been revealed. A mathematical model is proposed which describes the spring-back basing on fractal concepts of the relaxation processes under external permanent stress.
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页码:141 / 145
页数:5
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