First-Order Solutions for the Buckling Loads of Euler-Bernoulli Weakened Columns

被引：8

作者：

Loya, J. A. ^{[1
]}

Vadillo, G. ^{[1
]}

Fernandez-Saez, J. ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Continuum Mech & Struct Anal, Madrid 28911, Spain

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 2010年 / 136卷 / 05期

关键词：

BENDING VIBRATIONS; CRACKED BEAMS; FUNDAMENTAL-FREQUENCY; SINGULARITIES;

D O I：

10.1061/(ASCE)EM.1943-7889.0000103

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this work, closed-form expressions for the buckling loads of a weakened column with different boundary conditions are presented. The cracked-column model is based on the well-known method consisting of dividing the column into two segments connected by a rotational linear spring whose flexibility is related to the crack size and the geometry of the cross section. For the formulation of closed-form expressions, the perturbation method is used and the results are compared with those found by directly solving the eigenvalue problem.

引用

页码：674 / 679

页数：6

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