A strain energy-based damage severity correction factor method for damage identification in plate-type structures

Fan, Wei; Qiao, Pizhong

doi:10.1016/j.ymssp.2011.11.010

Cited by 36 publications

(19 citation statements)

References 21 publications

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“…The proposed DSCF-based damage identifi cation method (Fan, 2011;Fan and Qiao, 2012) consists of three steps: mode selection, damage localization, and damage quantifi cation.…”

Section: Dscf-based Damage Identification Method: Key Stepsmentioning

confidence: 99%

“…In this study, a modal strain energy-based damage severity correction factor (DSCF) method recently proposed for damage localization and quantifi cation of plate-type structures (Fan, 2011;Fan and Qiao, 2012) is experimentally verifi ed using a fi ber-reinforced polymer (FRP) sandwich deck panel with a surface-boned piezoelectric sensor array. The method can be easily implemented in experimental testing and can be used to both locate and quantify damage.…”

Section: Introductionmentioning

confidence: 99%

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Identifying damage in honeycomb fiber-reinforced polymer (FRP) composite sandwich bridge decks

Qiao

Fan

2014

Advanced Composites in Bridge Construction and Repair

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“…The proposed DSCF-based damage identifi cation method (Fan, 2011;Fan and Qiao, 2012) consists of three steps: mode selection, damage localization, and damage quantifi cation.…”

Section: Dscf-based Damage Identification Method: Key Stepsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identifying damage in honeycomb fiber-reinforced polymer (FRP) composite sandwich bridge decks

Qiao

Fan

2014

Advanced Composites in Bridge Construction and Repair

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“…21,22,[25][26][27] A powerful, theoretical approach for that is to see estimation as a special case of control. 31 Then one uses plant P for estimation (15) Standard methods of control are extensively studied and profound results are known. For example, the lower linear fractional transformation (LLFT) 33 allows to describe system T en = LLFT(P, K) in terms of closed-loop matrices ( cl ,  cl ,  cl ,  cl ) as follows: (16) These closed-loop parameters affinely depend on controller data…”

Section:  ∞ Estimation In Discrete-time 241 the Worst Case Scenariomentioning

confidence: 99%

Theory and numerical application of damage localization method state projection estimation error (SP2E)

Vollmering

Lenzen

2018

Struct Control Health Monit

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In this article, the authors elaborate the theory and application of the state projection estimation error (SP2E) method. SP2E has been developed to efficiently localize structural damage. The authors begin by discussing some estimation techniques for damage identification. Because exact analytical mechanical parameters and structural excitations are often unknown for real large-scale structures, the parametrization of a mechanical system by stochastic subspace identification is considered. This leads to discrete-time state space parameters and is the basis for  ∞ estimation, which allows to cope with unknown structural excitations. For damage localization, we applied SP2E and compared the result afterwards to a defined difference process. This led to the proposed damage identification procedure, which finally is applied in real laboratory experiments. Based on a discussion of different estimation techniques and their numerical application, the experimental results confirm the method SP2E. KEYWORDS damage localization, H-infinity estimation, oblique projections in linear algebra, output only identification, structural health monitoring Struct Control Health Monit. 2018;25:e2237.wileyonlinelibrary.com/journal/stc

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“…() Curvatures are sometimes associated with modal strain energy. () Another method is the analysis of experimental flexibility parameters. ()…”

Section: Introductionmentioning

confidence: 99%

An output-only damage identification method based on H∞ theory and state projection estimation error (SP2E)

Lenzen

Vollmering

2017

Struct Control Health Monit

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Summary In this article, a new advantageous approach for damage identification of mechanical structures based on state projection estimation error (SP2E) is proposed. The theoretical foundation relies on output‐only identification, H∞ theory, estimation error, and state projections. Finally, the proposed damage identification approach is verified by discussing results of laboratory experiments. Therein, structural changes have been applied at a mechanical structure, and the capability to localize them by SP2E has been studied subsequently. By analyzing several different structural alteration positions and extents, an experimental sensitivity study has been conducted, which confirmed the applicability of SP2E for damage localization.

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A strain energy-based damage severity correction factor method for damage identification in plate-type structures

Cited by 36 publications

References 21 publications

Identifying damage in honeycomb fiber-reinforced polymer (FRP) composite sandwich bridge decks

Identifying damage in honeycomb fiber-reinforced polymer (FRP) composite sandwich bridge decks

Theory and numerical application of damage localization method state projection estimation error (SP2E)

An output-only damage identification method based on H∞ theory and state projection estimation error (SP2E)

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