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Damage detection by the topology design formulation using modal parameters
Author(s) -
Lee Joong Seok,
Kim Jae Eun,
Kim Yoon Young
Publication year - 2006
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1817
Subject(s) - topology optimization , modal , finite element method , topology (electrical circuits) , point (geometry) , set (abstract data type) , modal analysis , structural engineering , identification (biology) , computer science , engineering , mathematics , geometry , materials science , programming language , electrical engineering , botany , polymer chemistry , biology
The feasibility of using the topology design method for structural damage identification is investigated for the first time. The finite element model of an undamaged structure and some point‐frequency response functions of a damaged structure are assumed to be available. To carry out the feasibility study, the topology optimization formulation suitable for structural damage detection is newly set up, where both resonances and anti‐resonances are used as the damage indication modal parameters. An idea to progressively reduce the candidate damaged elements is also developed to improve the accuracy and efficiency of the proposed method. Copyright © 2006 John Wiley & Sons, Ltd.