104 Damage Identification of Structural Components by a Successive Iteration Method of Bounding Domain

2001 ◽  
Vol 2001.36 (0) ◽  
pp. 8-9
Author(s):  
Hideki SEKINE ◽  
Masaki SATO ◽  
Masaaki SATO
Keyword(s):  
Iteration Method ◽  
Damage Identification ◽  
Structural Components ◽  
Successive Iteration

scholarly journals A multilevel successive iteration method for nonlinear elliptic problems

2003 ◽  
Vol 73 (246) ◽  
pp. 525-540 ◽  
Author(s):  
Yunqing Huang ◽  
Zhongci Shi ◽  
Tao Tang ◽  
Weimin Xue
Keyword(s):  
Iteration Method ◽  
Elliptic Problems ◽  
Nonlinear Elliptic Problems ◽  
Successive Iteration ◽  
Nonlinear Elliptic

scholarly journals Locating and Quantifying Damage in Beam-like Structures Using Modal Flexibility-based Deflection Changes

2020 ◽  
Vol 20 (10) ◽  
pp. 2042008
Author(s):  
N. T. Le ◽  
A. Nguyen ◽  
D. P. Thambiratnam ◽  
T. H. T. Chan ◽  
T. Khuc
Keyword(s):  
Strain Energy ◽  
Damage Identification ◽  
Real Life ◽  
Detection Methods ◽  
Beam Model ◽  
Structural Components ◽  
Modal Strain Energy ◽  
Modal Flexibility ◽  
Modes Of Vibration ◽  
Identification Tool

This paper presents an enhanced method to locate and quantify damage in beam-like structures using changes in deflections estimated from modal flexibility (MF) matrices. The method is developed from explicit relationship between a series of MF-based deflection change vectors and the damage characteristics. Based on this, three damage locating criteria are defined and used to detect and locate damage. Once the damage is located, its severity is estimated conveniently from a closed-form function. The capability of the proposed method is examined through numerical and experimental verifications on a steel beam model. The result shows that the method accurately locates and quantifies damage under various scenarios using a few modes of vibration, with satisfactory or even better results compared to those obtained from traditional static deflection-based method. The performance of the proposed method is also compared with three well-known vibration-based damage detection methods using changes in MF and modal strain energy. It is found that the proposed method outperformed the other three methods, especially for multiple damage cases. As beams can represent various structural components, the proposed method provides a promising damage identification tool targeting the application to real-life structures.

A wave propagation and vibration-based approach for damage identification in structural components

2009 ◽  
Vol 322 (1-2) ◽  
pp. 167-183 ◽  
Author(s):  
Sauvik Banerjee ◽  
Fabrizio Ricci ◽  
Ernesto Monaco ◽  
Ajit Mal
Keyword(s):  
Wave Propagation ◽  
Damage Identification ◽  
Structural Components
Sign in / Sign up

Export Citation Format

Share Document