Abstract
Composite materials are used in many advanced engineering applications because of high specific strength and stiffness. Their complex damage mechanisms and failure modes, however, are still not well-understood, thus challenging the application safety. Ultrasonic guided waves are promising structural health monitoring tools used to determine the operational safety of composite materials. In this article, a fully coupled numerical simulation model is used to study wave propagation and dispersion in composites under varying sensor locations, propagating orientations, excitation frequencies, and damage locations. The model is based on the local interaction simulation approaches/sharp interface model wherein output sensor signals are processed using the matching pursuit decomposition algorithm to study the signal features in the time–frequency domain. The changes in signals due to varying damage locations with respect to the through-thickness direction are studied under anti-symmetrical and symmetrical excitation scenarios. The results show that the signal from symmetric excitation is more sensitive to the damage location, while the signal from anti-symmetric excitation is less dispersive. It indicates that comprising effective feature extraction technique with the accurate physics-based numerical simulation model can be implemented to develop robust structural health monitoring framework for composites.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 969-985 |
| Number of pages | 17 |
| Journal | Journal of Intelligent Material Systems and Structures |
| Volume | 29 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 1 2018 |
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Keywords
- Composite material
- damage
- guided wave propagation
- numerical modeling
- structural health monitoring
- wave attenuation
- wave dispersion
ASJC Scopus subject areas
- Materials Science(all)
- Mechanical Engineering
Cite this
Ultrasonic guided wave propagation in composites including damage using high-fidelity local interaction simulation. / Li, Guoyi; Neerukatti, Rajesh Kumar; Chattopadhyay, Aditi.
In: Journal of Intelligent Material Systems and Structures, Vol. 29, No. 5, 01.03.2018, p. 969-985.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ultrasonic guided wave propagation in composites including damage using high-fidelity local interaction simulation
AU - Li, Guoyi
AU - Neerukatti, Rajesh Kumar
AU - Chattopadhyay, Aditi
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Composite materials are used in many advanced engineering applications because of high specific strength and stiffness. Their complex damage mechanisms and failure modes, however, are still not well-understood, thus challenging the application safety. Ultrasonic guided waves are promising structural health monitoring tools used to determine the operational safety of composite materials. In this article, a fully coupled numerical simulation model is used to study wave propagation and dispersion in composites under varying sensor locations, propagating orientations, excitation frequencies, and damage locations. The model is based on the local interaction simulation approaches/sharp interface model wherein output sensor signals are processed using the matching pursuit decomposition algorithm to study the signal features in the time–frequency domain. The changes in signals due to varying damage locations with respect to the through-thickness direction are studied under anti-symmetrical and symmetrical excitation scenarios. The results show that the signal from symmetric excitation is more sensitive to the damage location, while the signal from anti-symmetric excitation is less dispersive. It indicates that comprising effective feature extraction technique with the accurate physics-based numerical simulation model can be implemented to develop robust structural health monitoring framework for composites.
AB - Composite materials are used in many advanced engineering applications because of high specific strength and stiffness. Their complex damage mechanisms and failure modes, however, are still not well-understood, thus challenging the application safety. Ultrasonic guided waves are promising structural health monitoring tools used to determine the operational safety of composite materials. In this article, a fully coupled numerical simulation model is used to study wave propagation and dispersion in composites under varying sensor locations, propagating orientations, excitation frequencies, and damage locations. The model is based on the local interaction simulation approaches/sharp interface model wherein output sensor signals are processed using the matching pursuit decomposition algorithm to study the signal features in the time–frequency domain. The changes in signals due to varying damage locations with respect to the through-thickness direction are studied under anti-symmetrical and symmetrical excitation scenarios. The results show that the signal from symmetric excitation is more sensitive to the damage location, while the signal from anti-symmetric excitation is less dispersive. It indicates that comprising effective feature extraction technique with the accurate physics-based numerical simulation model can be implemented to develop robust structural health monitoring framework for composites.
KW - Composite material
KW - damage
KW - guided wave propagation
KW - numerical modeling
KW - structural health monitoring
KW - wave attenuation
KW - wave dispersion
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U2 - 10.1177/1045389X17730659
DO - 10.1177/1045389X17730659
M3 - Article
AN - SCOPUS:85044148451
VL - 29
SP - 969
EP - 985
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
SN - 1045-389X
IS - 5
ER -