Longitudinal Vibrations of a Bar with Incipient Transverse Cracks

被引：4
|
作者：
Il'gamov, M. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Mech, Ufa Sci Ctr, Pr Oktyabrya 71, Ufa 450054, Russia
来源：
MECHANICS OF SOLIDS | 2017年 / 52卷 / 01期
关键词：
bar; transverse crack; longitudinal vibrations; vibration frequency and period; crack diagnostics;
D O I：
10.3103/S0025654417010034
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The simplest model of longitudinal vibrations of a bar with incipient transverse cracks is considered under the essential assumption that the crack size is small compared with the bar cross-section area and the difference between the mode shapes of the bar with incipient cracks and the undamaged bar is small. The different manifestation of cracks in the phases of extension and compression strains is taken into account. The natural vibration frequencies and the crack coordinates and dimensions are determined from experimental values of natural frequencies.
引用
收藏
页码：18 / 24
页数：7
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