Detection of crack location using cracked beam element method for structural analysis

Authors
Viola, E Federici, L Nobile, L
Citation
E. Viola et al., Detection of crack location using cracked beam element method for structural analysis, THEOR A FR, 36(1), 2001, pp. 23-35
Citations number
21
Categorie Soggetti
Mechanical Engineering
Journal title
THEORETICAL AND APPLIED FRACTURE MECHANICS
ISSN journal
01678442 → ACNP
Volume
36
Issue
1
Year of publication
2001
Pages
23 - 35
Database
ISI
SICI code
0167-8442(200107/08)36:1<23:DOCLUC>2.0.ZU;2-W
Abstract
The local flexibility introduced by cracks changes the dynamic behavior of the structure and, by examining this change, crack position and magnitude c an be identified. In order to model the structure for FEM analysis, a speci al finite element for a cracked Timoshenko beam is developed. Shape functio ns for rotational and translational displacements are used to obtain the co nsistent mass matrix for the cracked beam element. Effect of the crack on t he stiffness matrix and consistent mass matrix is investigated. Proposed is a procedure for identifying cracks in structures using modal test data. (C ) 2001 Elsevier Science Ltd. All rights reserved.