Damage detection in a large composite panel of five stiffeners using Lamb wave signals

Ye Lu; Lin Ye; Dong Wang; Zhaorui Zhong; Israel Herszberg

Damage detection in a large composite panel of five stiffeners using Lamb wave signals

Ye Lu
, Lin Ye
, Dong Wang
, Zhaorui Zhong
, Israel Herszberg

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

The propagation characteristics of Lamb waves activated and collected by an active piezoelectric (PZT) sensor network in a CF/EP composite panel of five stiffeners were investigated. In particular, wave attenuation in terms of propagation distance and wave energy loss induced by reinforced stiffeners were evaluated. The interaction between Lamb wave modes and a through-thickness hole of 11.9 mm diameter was subsequently examined. Given the complexity of the captured wave signals, an inverse algorithm based on correlation between wave signals in the benchmark and damaged structures was developed. Different combinations of actuator-sensor paths were used to estimate the location of damage. The diagnostic results demonstrate that the proposed approach has a good capability for defining location of damage using the probability of occurrence of damage.

Original language	English
Title of host publication	2nd Asia-Pacific Workshop on Structural Health Monitoring, 2APWSHM
Publisher	Materials Research Forum LLC
Pages	136-142
Number of pages	7
Volume	33
Publication status	Published - 2008
Externally published	Yes
Event	Asia-Pacific Workshop on Structural Health Monitoring 2008 - Melbourne, Australia Duration: 2 Dec 2008 → 4 Dec 2008 Conference number: 2nd

Publication series

Name	Materials Forum
ISSN (Print)	0883-2900

Conference

Conference	Asia-Pacific Workshop on Structural Health Monitoring 2008
Abbreviated title	APWSHM 2008
Country/Territory	Australia
City	Melbourne
Period	2/12/08 → 4/12/08

Keywords

Composite structures
Damage identification
Lamb waves
Sensor networks
Wave attenuation

Cite this

@inproceedings{4d981f4c5aa24422b969d3e7f5599818,

title = "Damage detection in a large composite panel of five stiffeners using Lamb wave signals",

abstract = "The propagation characteristics of Lamb waves activated and collected by an active piezoelectric (PZT) sensor network in a CF/EP composite panel of five stiffeners were investigated. In particular, wave attenuation in terms of propagation distance and wave energy loss induced by reinforced stiffeners were evaluated. The interaction between Lamb wave modes and a through-thickness hole of 11.9 mm diameter was subsequently examined. Given the complexity of the captured wave signals, an inverse algorithm based on correlation between wave signals in the benchmark and damaged structures was developed. Different combinations of actuator-sensor paths were used to estimate the location of damage. The diagnostic results demonstrate that the proposed approach has a good capability for defining location of damage using the probability of occurrence of damage.",

keywords = "Composite structures, Damage identification, Lamb waves, Sensor networks, Wave attenuation",

author = "Ye Lu and Lin Ye and Dong Wang and Zhaorui Zhong and Israel Herszberg",

year = "2008",

language = "English",

volume = "33",

series = "Materials Forum",

publisher = "Materials Research Forum LLC",

pages = "136--142",

booktitle = "2nd Asia-Pacific Workshop on Structural Health Monitoring, 2APWSHM",

address = "United States of America",

note = "Asia-Pacific Workshop on Structural Health Monitoring 2008, APWSHM 2008 ; Conference date: 02-12-2008 Through 04-12-2008",

}

Lu, Y, Ye, L, Wang, D, Zhong, Z & Herszberg, I 2008, Damage detection in a large composite panel of five stiffeners using Lamb wave signals. in 2nd Asia-Pacific Workshop on Structural Health Monitoring, 2APWSHM. vol. 33, Materials Forum, Materials Research Forum LLC, pp. 136-142, Asia-Pacific Workshop on Structural Health Monitoring 2008, Melbourne, Victoria, Australia, 2/12/08.

TY - GEN

T1 - Damage detection in a large composite panel of five stiffeners using Lamb wave signals

AU - Lu, Ye

AU - Ye, Lin

AU - Wang, Dong

AU - Zhong, Zhaorui

AU - Herszberg, Israel

N1 - Conference code: 2nd

PY - 2008

Y1 - 2008

N2 - The propagation characteristics of Lamb waves activated and collected by an active piezoelectric (PZT) sensor network in a CF/EP composite panel of five stiffeners were investigated. In particular, wave attenuation in terms of propagation distance and wave energy loss induced by reinforced stiffeners were evaluated. The interaction between Lamb wave modes and a through-thickness hole of 11.9 mm diameter was subsequently examined. Given the complexity of the captured wave signals, an inverse algorithm based on correlation between wave signals in the benchmark and damaged structures was developed. Different combinations of actuator-sensor paths were used to estimate the location of damage. The diagnostic results demonstrate that the proposed approach has a good capability for defining location of damage using the probability of occurrence of damage.

AB - The propagation characteristics of Lamb waves activated and collected by an active piezoelectric (PZT) sensor network in a CF/EP composite panel of five stiffeners were investigated. In particular, wave attenuation in terms of propagation distance and wave energy loss induced by reinforced stiffeners were evaluated. The interaction between Lamb wave modes and a through-thickness hole of 11.9 mm diameter was subsequently examined. Given the complexity of the captured wave signals, an inverse algorithm based on correlation between wave signals in the benchmark and damaged structures was developed. Different combinations of actuator-sensor paths were used to estimate the location of damage. The diagnostic results demonstrate that the proposed approach has a good capability for defining location of damage using the probability of occurrence of damage.

KW - Composite structures

KW - Damage identification

KW - Lamb waves

KW - Sensor networks

KW - Wave attenuation

UR - https://www.scopus.com/pages/publications/80053265586

M3 - Conference Paper

AN - SCOPUS:80053265586

VL - 33

T3 - Materials Forum

SP - 136

EP - 142

BT - 2nd Asia-Pacific Workshop on Structural Health Monitoring, 2APWSHM

PB - Materials Research Forum LLC

T2 - Asia-Pacific Workshop on Structural Health Monitoring 2008

Y2 - 2 December 2008 through 4 December 2008

ER -

Damage detection in a large composite panel of five stiffeners using Lamb wave signals

Abstract

Publication series

Conference

Keywords

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