Damage Detection in Steel Plates Based on Comparing Analytical Results of the Discrete 2-D Wavelet Transform of Primary and Secondary Modes Shape

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Khanahmadi Mohtasham; REZAYFAR OMID; Gholhaki Majid

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Paper Information

Journal: JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING Year:2021 | Volume:8 | Issue:5 Page(s): 198-214

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Information Journal Paper

Title

Damage Detection in Steel Plates Based on Comparing Analytical Results of the Discrete 2-D Wavelet Transform of Primary and Secondary Modes Shape

Author(s)

Khanahmadi Mohtasham | REZAYFAR OMID | Gholhaki Majid | Issue Writer Certificate

Keywords

Wavelet transformQ1

Signal processingQ1

Structural health monitoringQ1

Steel plateQ1

Mode shapeQ1

Damage detectionQ1

Abstract

Damage occurrence is always inevitable in structures. So far, many examples of damage types in engineering structures have been recorded with many losses of human and financial. For this reason, the detecting of structural damages during its exploitation to provide safety with the lowest cost has been the subject of many researchers in the last two decades. In this regard, the Wavelet transform is a powerful mathematical tool for Signal processing, has attracted the attention of many researchers in the field of health monitoring of structures. In this paper, due to the increase of Steel plate shear wall in the building industry, it was considered the problem of detecting the location of the damage in Steel plates. In this paper, due to the increase of Steel plate shear wall in the building industry, it was considered the problem of detecting the location of the damage in Steel plates. At first, the Steel plate was modeled in ABAQUS finite element software with free support conditions, and then the healthy and damaged first eight Mode shape was extracted. The primary and secondary modes shape was analyzed using discrete twodimensional Wavelet transform as a two-dimensional spatial signal. The results of the diagonal details of the wavelet analysis of secondary modes shape show the turbulence of the wavelet coefficients, compared with primary modes shape in damage locations; so that, wavelet analysis of the modes shape of the first mode, show damage location with the better equivalence of wavelet coefficients and the error of less than 6%.

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APA: Copy

Khanahmadi, Mohtasham, REZAYFAR, OMID, & Gholhaki, Majid. (2021). Damage Detection in Steel Plates Based on Comparing Analytical Results of the Discrete 2-D Wavelet Transform of Primary and Secondary Modes Shape. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 8(5 ), 198-214. SID. https://sid.ir/paper/403944/en

Vancouver: Copy

Khanahmadi Mohtasham, REZAYFAR OMID, Gholhaki Majid. Damage Detection in Steel Plates Based on Comparing Analytical Results of the Discrete 2-D Wavelet Transform of Primary and Secondary Modes Shape. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2021;8(5 ):198-214. Available from: https://sid.ir/paper/403944/en

IEEE: Copy

Mohtasham Khanahmadi, OMID REZAYFAR, and Majid Gholhaki, “Damage Detection in Steel Plates Based on Comparing Analytical Results of the Discrete 2-D Wavelet Transform of Primary and Secondary Modes Shape,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 8, no. 5 , pp. 198–214, 2021, [Online]. Available: https://sid.ir/paper/403944/en

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