DETECTION OF PLASTIC-DEFORMATION DURING FATIGUE OF MILD-STEEL BY THE MEASUREMENT OF BARKHAUSEN NOISE

被引：49

作者：

KARJALAINEN, LP ^{[1
]}

MOILANEN, M ^{[1
]}

机构：

[1] UNIV OULU,INST ELECTR MEASUREMENT TECHNOL,SF-90100 OULU 10,FINLAND

来源：

NDT INTERNATIONAL | 1979年 / 12卷 / 02期

关键词：

D O I：

10.1016/0308-9126(79)90015-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to determine the potential of Barkhausen noise measurement as an ndt method, the effect of plastic deformation on the true RMS value of Barkhausen noise has been studied in a fine-grained mild steel. Due to cyclic straining, distinct changes in noise levels, the degree depending on the strain amplitude, occur even below the fatigue limit, indicating plastic deformation. It seems that by detecting the amount and variation during cycling, Barkhausen noise analysis could be used as an ndt method to predict the fatigue life of real steel structures without knowing their load levels. © 1979.

引用

页码：51 / 55

页数：5

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