Crack localization in stepped beams

被引:4
作者
AlQaisia, A
Meneghetti, U
机构
[1] Università di Bologna, Dipto. Ingegneria delle C., 40136 Bologna
关键词
beams vibration; modal analysis; damage location; vibrations (structural elements);
D O I
10.1023/A:1004288914173
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A method for crack localization, based on so-called Local Modal Crack Sensitivity (LMCS), has recently been proposed by one of the Authors. As a major feature, the method only involves measuring eigenfrequencies. The method has already been used for beams of uniform cross section and homogeneous boundary conditions. In this paper, the method is extended to stepped beams, with both homogeneous and non-homogeneous boundary conditions. Experimental results confirm its usefulness for crack localization. Satisfactory localization of a second crack was also possible, so confirming the effectiveness of the method.
引用
收藏
页码:315 / 325
页数:11
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