Influence of Crack Inclination Angle on Isotropic Cracked Cantilever Beam

被引：5

作者：

Soliman, Ehab Samir Mohamed Mohamed ^{[1
]}

机构：

[1] Egyptian Russian Univ, Fac Engn, Mechatron & Robot Dept, Cairo 11829, Egypt

来源：

JOURNAL OF FAILURE ANALYSIS AND PREVENTION | 2020年 / 20卷 / 04期

关键词：

Mode shape; Cantilever beam; Rotational spring stiffness; Harmonic response; Inclined crack; VIBRATION ANALYSIS; IDENTIFICATION;

D O I：

10.1007/s11668-020-00927-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of various crack inclination angles on the mode shape, rotational stiffness at the cracked cross section and the stiffness of the cracked cantilever beam was investigated. Finite element analysis for different scenarios of inclined cracked cantilever beam has been performed to obtain frequencies and zero frequency deflections. Rotational spring is considered as a simulation of the cracked section and based on zero frequency deflection; rotational spring stiffness and stiffness of cracked beam are analytically calculated. Also, the first three mode shapes of bending vibration and harmonic response are extracted and studied. The investigation of results revealed that the effect of inclined crack with phi = 40 degrees,phi = 55 degrees and phi = 120 degrees, respectively, is much, moderate and minimum severe, respectively, on the cracked cantilever beam.

引用

页码：1065 / 1080

页数：16

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