On the efficiency of using damping characteristics of structural components for damage diagnostics

被引：3

作者：

Bovsunovskii A.P. ^{[1
]}

机构：

[1] Institute of Problems of Strength, National Academy of Sciences of Ukraine, Kiev

来源：

Strength of Materials | 2002年 / 34卷 / 6期

关键词：

crack; decrement; energy dissipation; stress intensity factor; vibrations;

D O I：

10.1023/A:1022022601601

中图分类号：

学科分类号：

摘要：

Using the generalized relationship between energy dissipation in a fatigue crack and the range of the stress intensity factor, which was derived earlier, the author has performed an analytical study of the influence of various factors on the logarithmic decrement of vibrations of a cantilever beam with an edge crack and a surface semielliptical crack. In particular, it is demonstrated that an increase in the vibration damping characteristic of a beam due to the crack initiation and growth can serve as an efficient damage diagnostics method for structural components in case such components, when intact, have a fairly low level of dissipation properties. © 2002 Plenum Publishing Corporation.

引用

页码：560 / 569

页数：9

共 16 条

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