VIBRATION OF CRACKED ANNULAR PLATES

被引：15

作者：

ANIFANTIS, NK ^{[1
]}

ACTIS, RL ^{[1
]}

DIMAROGONAS, AD ^{[1
]}

机构：

[1] WASHINGTON UNIV,DEPT MECH ENGN,ST LOUIS,MO 63130

来源：

ENGINEERING FRACTURE MECHANICS | 1994年 / 49卷 / 03期

关键词：

Cracks - Eigenvalues and eigenfunctions - Elastic moduli - Natural frequencies - Plates (structural components) - Stiffness - Strain - Stress intensity factors;

D O I：

10.1016/0013-7944(94)90265-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A surface peripheral crack of an annular plate is modelled as a local rotational flexibility for vibration analysis. Computed values of the local stiffness are very close to those computed by using strain energy arguments and data for beam-like structures. From the solution of the appropriate eigenvalue problem, the decrement of the fundamental natural frequency of the plate, due to the presence of the crack, is computed. Results are used for crack identification in annular plates.

引用

页码：371 / 379

页数：9

共 17 条

[1] GENERATION OF ELEMENTS WITH SINGULARITIES [J].