Damage detection using parameter dependent dynamic experiments and wavelet transformation

Garstecki, Andrzej; Knitter-Piątkowska, Anna; Pozorski, Zbigniew; Ziopaja, Krzysztof

doi:10.1080/13923730.2004.9636306

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…can be effective if the damage location is known a priori, what cannot be expected in most civil engineering structures (Wang et al 2011). Therefore, the global techniques are, firstly, developed to detect the presence of damage and estimate damage location (Cornwell et al 1999;Li et al 2002;Choi et al 2004;Garstecki et al 2004;Štimac Grandić et al 2009;Abdo 2012). Secondly, many global NDDT are able to estimate severity of damage at damage location (Chen, Bicanic 2000;Nicholson, Alnefaie 2000;Kim et al 2006;Štimac Grandić, Grandić 2010;Wang 2013;Fayyadha, Razaka 2013).…”

Section: Introductionmentioning

confidence: 99%

Estimation of damage severity using sparse static measurement

Grandić

2015

Journal of Civil Engineering and Management

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A new structural damage estimation procedure using grey relation coefficient and curvature of displacement influence line in beams using sparse measurement is proposed in this paper. The method is based on static structural response which can be obtained using single sensor. Determination of damage location as well as determination of corresponding damage severity can be easily calculated with simple arithmetic operations, which is the main advantage of the proposed method. Conducted numerical simulation for different damage scenarios and various measurement sparseness and experimental validation confirm the effectiveness of proposed damage severity estimation procedure.

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Section: Introductionmentioning

confidence: 99%

Estimation of damage severity using sparse static measurement

Grandić

2015

Journal of Civil Engineering and Management

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“…This technique is known as Structural System Identification (SSI), a complex process to determine the actual parameters of a structural system based on a subset of measured inputs and outputs. One of the most important applications of the SSI is damage detection (Garstecki et al 2004;Yonggang et al 2008).…”

Section: Polyrational Systems Of Equationsmentioning

confidence: 99%

New Tool to Help Decision Making in Civil Engineering

Castillo

Galant

Nogal

et al. 2015

Journal of Civil Engineering and Management

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Abstract. Structural collapses have indirectly produced important progress in science. The last lesson learnt from structural collapses reveals the important role of polyrational systems of equations in the Civil Engineering field, as all problems in Physics and Engineering involving scale variables lead to systems of these equations. Since no efficient methods are known to solve this type of equations, a powerful and efficient method to multivariate polyrational equations using observability techniques is presented in this paper. It is pointed out that this method can be applied to solve different Civil Engineering problems. The information obtained by this tool can be used to assist decision making and risk management processes during maintenance and service life. As an example of its use, a structural damage detection problem is solved.

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“…The application of WT for identification of cracks in structures received a great attention over the last decade. Douka et al (2003), Quek et al (2001), Gentile and Messina (2003), Garstecki et al (2004) as well as Kim and Melhem (2004) used the WT for crack detection in beams. The effectiveness of the discrete wavelet transform (DWT) combined with the inverse analysis for damage identification in beams was discussed in Knitter-Piatkowska and Garbowski (2013).…”

Section: Introductionmentioning

confidence: 99%

Crack identification in plates using 1-D discrete wavelet transform

Knitter-Piątkowska

Guminiak

Hloupis

2017

jtam

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In the present work, the defect detection while using Discrete Wavelet Transform in rectangular plate structures is investigated. The plate bending is described by using the Boundary Element Method with boundary integral equations formulated in a modified simplified approach. The boundary elements of a constant type in a non-singular approach are implemented. Defects are introduced by additional edges forming slots or holes in relation to the basic plate domain. Estimation of the defect position is performed while using wavelet coefficients of curvature and deformation signals as well as a newly proposed moving variance estimator.

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Damage detection using parameter dependent dynamic experiments and wavelet transformation

Cited by 5 publications

References 11 publications

Estimation of damage severity using sparse static measurement

Estimation of damage severity using sparse static measurement

New Tool to Help Decision Making in Civil Engineering

Crack identification in plates using 1-D discrete wavelet transform

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