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- Title
Technical Papers: Damage Detection Method Based on Element Modal Strain Energy Sensitivity.
- Authors
Wang-Ji Yan; Tian-Li Huang; Wei-Xin Ren
- Abstract
In this paper, a damage detection method based on an efficient algebraic algorithm of element modal strain energy sensitivity is proposed for detecting damage location and severity. The method adopts a closed form of element modal strain energy sensitivity. The element damage equations have been systematically established and a solution technique incorporated with the singular value decomposition-based regularization algorithm is used to ensure the correct solutions. A number of assumed damage scenarios for numerically simulated beams and two-dimensional frame structure have been used to demonstrate the applicability of proposed method. The noise effect is also presented. It is demonstrated that the proposed method is efficient in a one-step (non-iterative) procedure.
- Subjects
FINITE element method; VIBRATION (Mechanics); ALGEBRA; STRUCTURAL analysis (Engineering); STRUCTURAL engineering
- Publication
Advances in Structural Engineering, 2010, Vol 13, Issue 6, p1075
- ISSN
1369-4332
- Publication type
Article
- DOI
10.1260/1369-4332.13.6.1075