NTL Record

Title	Identification of damage in structural systems using modal data
Record ID	18269
Personal Name Creator	Pothisiri, T.; Hjelmstad, K. D.
Source	Structural research series, No. 632; 146p. in various pagings
Corporate Creator	University of Illinois at Urbana-Champaign. Dept. of Civil Engineering
Publisher	University of Illinois at Urbana-Champaign
Publication Date	20010400
Language	English
Abstract	To develop a useful global damage identification scheme, noise and spareseness of the measured modal data must be taken into account. Measurement noise if inevitable. If one does not consider noise and its random nature, the damage evaluation algorithm may not provide accurate results. In addition to noise, spatial sparseness of measured modal response presents a main problem in developing a robust damage detection scheme. Most civil engineering structures require a large number of degrees of freedom in a finite element model due to their size and complexity, however, only a limited number of physical locations can be practically measures.
Rosap ID	dot:5169
Rosap URL	https://rosap.ntl.bts.gov/view/dot/5169
General Subjects	Algorithms; Bridge trusses; Civil engineering; Damage assessment; Dynamic structural analysis; Finite element method; Modal response; Noise; Nondestructive tests; Probability theory; Scenarios; Stiffness; Trusses; Vibration
Classification	NTL - HIGHWAY/ROAD TRANSPORTATION - Bridges and Structures; NTL - HIGHWAY/ROAD TRANSPORTATION - Construction and Maintenance; NTL - HIGHWAY/ROAD TRANSPORTATION - HIGHWAY/ROAD TRANSPORTATION; NTL - HIGHWAY/ROAD TRANSPORTATION - Pavement Management and Performance; NTL - HIGHWAY/ROAD TRANSPORTATION - Materials
Geographical Coverage	United States
ISSN	0069-4274
Report Number	UILU-ENG-2001-2002
Resource type	Research Paper
URL	https://ntlrepository.blob.core.windows.net/lib/18000/18200/18269/PB2001107648.pdf
Format	PDF
Database	NTL Digital Repository