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Paper Information

Journal:   JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)   SEPTEMBER 2017 , Volume 4 , Number 2 ; Page(s) 125 To 134.
 
Paper: 

INCREASING ROBUSTNESS OF SOLUTION TO NOISE FOR IDENTIFYING DELAMINATION DAMAGE IN COMPOSITE PLATES USING A HYBRID METHOD

 
 
Author(s):  ASHORY MOHAMMAD REZA, GHASEMI GHALEBAHMAN AHMAD*, KOKABI MOHAMMAD JAVAD
 
* DEPARTMENT OF MECHANICAL ENGINEERING, SEMNAN UNIVERSITY, SEMNAN, IRAN
 
Abstract: 

Vibrational methods is one of the common nondestructive damage detection methods for detecting the damage parameters. The most important problem of these methods is their low sensitivity to detect the damage in the presence of noise. In this article, a hybrid damage detection method has been studied to increase the robustness of vibrational method to noise. First, the primary damage location has been detected by the wavelet transform. Next, all the damage parameters including location, depth and intensity of damage have been identified by the model updating process based on the Genetic Algorithm. The signal based on the strain energy ratio in intact and damaged states has been examined to primarily and approximately detect the location of damage thought applying wavelet transform. Also the selected error function in the updating process is based on the strain energy difference between these two states. Using the proposed method leads to raise level of robustness in the presence of noise, also the solution performs faster than the prior methods with the less computational cost. In this work, the solution robustness against noise in traditional model updating method and the proposed hybrid method based on the wavelet transform and updating process has been compared together. The case study has been the laminated composite plate with the delamination damage.

 
Keyword(s): COMPOSITE PLATE, DAMAGE DETECTION, WAVELET, STRAIN ENERGY, NOISE
 
 
References: 
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Click to Cite.
APA: Copy

ASHORY, M., & GHASEMI GHALEBAHMAN, A., & KOKABI, M. (2017). INCREASING ROBUSTNESS OF SOLUTION TO NOISE FOR IDENTIFYING DELAMINATION DAMAGE IN COMPOSITE PLATES USING A HYBRID METHOD. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 4(2 ), 125-134. https://www.sid.ir/en/journal/ViewPaper.aspx?id=570085



Vancouver: Copy

ASHORY MOHAMMAD REZA, GHASEMI GHALEBAHMAN AHMAD, KOKABI MOHAMMAD JAVAD. INCREASING ROBUSTNESS OF SOLUTION TO NOISE FOR IDENTIFYING DELAMINATION DAMAGE IN COMPOSITE PLATES USING A HYBRID METHOD. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC). 2017 [cited 2021May11];4(2 ):125-134. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570085



IEEE: Copy

ASHORY, M., GHASEMI GHALEBAHMAN, A., KOKABI, M., 2017. INCREASING ROBUSTNESS OF SOLUTION TO NOISE FOR IDENTIFYING DELAMINATION DAMAGE IN COMPOSITE PLATES USING A HYBRID METHOD. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), [online] 4(2 ), pp.125-134. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570085.



 
 
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