Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods

Roberto Palazzetti, Irina Trendafilova, Andrea Zucchelli, Giangiacomo Minak

Research output: Contribution to conferencePaper

Abstract

The focus of this work is to investigate the delamination damage in laminate composite beams, to fix a Vibration-based structural health monitoring (VSHM) method for the laminate structures. The analysis is concentrated on the vibration characteristics of the samples and, in particular, the attention is addressed on the first several natural frequencies of a composite laminate beam with a delamination damage. The core of this work is an experimental investigation on the vibration response of a composite laminate beam and its
changes caused by delaminations with different sizes and in different locations of the beam. The study is divided in 3 sections: delamination detection, delamination localization, and delamination estimate. The aim is to determine how the first six harmonics frequencies change due to the delamination, and the results show that they can be successfully used to investigate the presence, the location and the dimensions of the delamination in a composite beam. A Pattern Recognition analysis is used to locate the damage, while the detection and the evaluation are done using the changes in the harmonic frequencies. A finite element analysis is performed, and the variations of the natural frequencies due to delamination are in good agreement with the experimental results.

Conference

Conference14th European Conference on Composite Materials, ECCM14
CityBudapest, Hungary
Period7/06/1010/06/10

Fingerprint

Structural health monitoring
Delamination
Pattern recognition
Laminates
Composite materials
Natural frequencies
Finite element method

Keywords

  • vibration-based damage detection
  • composite beam
  • delamination detection
  • numerical analysis

Cite this

Palazzetti, R., Trendafilova, I., Zucchelli, A., & Minak, G. (2010). Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods. Paper presented at 14th European Conference on Composite Materials, ECCM14, Budapest, Hungary, .
Palazzetti, Roberto ; Trendafilova, Irina ; Zucchelli, Andrea ; Minak, Giangiacomo. / Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods. Paper presented at 14th European Conference on Composite Materials, ECCM14, Budapest, Hungary, .
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abstract = "The focus of this work is to investigate the delamination damage in laminate composite beams, to fix a Vibration-based structural health monitoring (VSHM) method for the laminate structures. The analysis is concentrated on the vibration characteristics of the samples and, in particular, the attention is addressed on the first several natural frequencies of a composite laminate beam with a delamination damage. The core of this work is an experimental investigation on the vibration response of a composite laminate beam and itschanges caused by delaminations with different sizes and in different locations of the beam. The study is divided in 3 sections: delamination detection, delamination localization, and delamination estimate. The aim is to determine how the first six harmonics frequencies change due to the delamination, and the results show that they can be successfully used to investigate the presence, the location and the dimensions of the delamination in a composite beam. A Pattern Recognition analysis is used to locate the damage, while the detection and the evaluation are done using the changes in the harmonic frequencies. A finite element analysis is performed, and the variations of the natural frequencies due to delamination are in good agreement with the experimental results.",
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author = "Roberto Palazzetti and Irina Trendafilova and Andrea Zucchelli and Giangiacomo Minak",
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year = "2010",
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Palazzetti, R, Trendafilova, I, Zucchelli, A & Minak, G 2010, 'Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods' Paper presented at 14th European Conference on Composite Materials, ECCM14, Budapest, Hungary, 7/06/10 - 10/06/10, .

Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods. / Palazzetti, Roberto; Trendafilova, Irina; Zucchelli, Andrea; Minak, Giangiacomo.

2010. Paper presented at 14th European Conference on Composite Materials, ECCM14, Budapest, Hungary, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods

AU - Palazzetti, Roberto

AU - Trendafilova, Irina

AU - Zucchelli, Andrea

AU - Minak, Giangiacomo

N1 - Similar paper presented at two different conferences

PY - 2010/6/7

Y1 - 2010/6/7

N2 - The focus of this work is to investigate the delamination damage in laminate composite beams, to fix a Vibration-based structural health monitoring (VSHM) method for the laminate structures. The analysis is concentrated on the vibration characteristics of the samples and, in particular, the attention is addressed on the first several natural frequencies of a composite laminate beam with a delamination damage. The core of this work is an experimental investigation on the vibration response of a composite laminate beam and itschanges caused by delaminations with different sizes and in different locations of the beam. The study is divided in 3 sections: delamination detection, delamination localization, and delamination estimate. The aim is to determine how the first six harmonics frequencies change due to the delamination, and the results show that they can be successfully used to investigate the presence, the location and the dimensions of the delamination in a composite beam. A Pattern Recognition analysis is used to locate the damage, while the detection and the evaluation are done using the changes in the harmonic frequencies. A finite element analysis is performed, and the variations of the natural frequencies due to delamination are in good agreement with the experimental results.

AB - The focus of this work is to investigate the delamination damage in laminate composite beams, to fix a Vibration-based structural health monitoring (VSHM) method for the laminate structures. The analysis is concentrated on the vibration characteristics of the samples and, in particular, the attention is addressed on the first several natural frequencies of a composite laminate beam with a delamination damage. The core of this work is an experimental investigation on the vibration response of a composite laminate beam and itschanges caused by delaminations with different sizes and in different locations of the beam. The study is divided in 3 sections: delamination detection, delamination localization, and delamination estimate. The aim is to determine how the first six harmonics frequencies change due to the delamination, and the results show that they can be successfully used to investigate the presence, the location and the dimensions of the delamination in a composite beam. A Pattern Recognition analysis is used to locate the damage, while the detection and the evaluation are done using the changes in the harmonic frequencies. A finite element analysis is performed, and the variations of the natural frequencies due to delamination are in good agreement with the experimental results.

KW - vibration-based damage detection

KW - composite beam

KW - delamination detection

KW - numerical analysis

UR - http://eccm14.pt.bme.hu/

M3 - Paper

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Palazzetti R, Trendafilova I, Zucchelli A, Minak G. Delamination localisation and length estimation in composite laminate beam by VSHM and pattern recognition methods. 2010. Paper presented at 14th European Conference on Composite Materials, ECCM14, Budapest, Hungary, .