FRACTURE-MECHANICS CHARACTERIZATION OF CRACK-GROWTH UNDER CREEP CONDITIONS

被引:5
|
作者
HOLLSTEIN, T
KIENZLER, R
机构
[1] Fraunhofer-Inst fuer, Werkstoffmechanik, Germany
来源
关键词
Fracture Mechanics - Metals Testing--Creep;
D O I
10.1243/03093247V232087
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Creep crack growth rates in the 32%-Ni-20%-Cr alloy Incoloy 800 H at 800°C are correlated with the fracture mechanics parameter C* integral. This was done by experimental and numerical investigations of different specimen sizes and geometries under constant load, constant rate of crack opening displacement or crosshead displacement, or slow cyclic loading. In the numerical simulations plane and three-dimensional finite element calculations have been performed without consideration of creep crack growth.
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页码:87 / 96
页数:10
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