Structural Integrity Assessment of Composites Plates with Embedded PZT Transducers for Structural Health Monitoring
Open accessAbstract
Active sensing using ultrasonic guided waves (UGW) is widely investigated for monitoring possible damages in composite structures. Recently, a novel diagnosed film based on a circuit-printed technique with piezoelectric lead zirconate titanate (PZT) transducers has been developed. The diagnostic film is a replacement for the traditional cable connection to PZT sensors and has been shown to significantly reduce the weight of the host structure. In this work, the diagnosed films were embedded into composite structures during manufacturing using a novel edge cut-out method during lay-up, which allowed for edge trimming after curing. In this paper, the effect of fatigue loading on the integrity of PZT transducers is initially investigated. The electro-mechanical impedance (EMI) properties at different fatigue loading cycles were used as the diagnostic measure for the performance of the sensors. At the same time, the behaviours of UGW were investigated at different fatigue loading cycles. It was found that the EMI properties and active sensing behaviours remained stable up to 1 million cycles for the force ranges of 0.5~5 kN and 1~10 kN. Next, the effect of embedding the diagnosed film on the mechanical properties of the host composite structure was investigated. Tensile and compressive tests were conducted and the elastic modulus of composite coupons with and without embedded PZT diagnosed films were compared. The elastic modulus of composite coupons with PZT diagnosed films embedded across the entire coupon reduced by as much as 20% for tensile tests and just over 10% for compressive tests compared to the coupons without embedded sensors. These reductions are considered the worst-case scenario, as in real structures the film would only be embedded in a relatively small area of the structure.
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Active SHM enables direct and targeted detection and evaluation of structural damage, resulting in more reliable and accurate health assessment.
“On the other hand, active SHM enables the direct and targeted detection and evaluation of structural damage resulting in more reliable and accurate health assessment.”
From Effects of Environmental and Operational Conditions on Structural Health Monitoring and Non-Destructive Testing: A Systematic Review (2023) · cites this paper as [60]
The Introduction describes SHM as providing real-time damage detection, and §3.1 says the electro-mechanical impedance method can evaluate local damage severity. These passages support detection and targeted evaluation, but do not establish that active SHM produces a more reliable or accurate health assessment. (LLM, conf=0.84)
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- [6]Giurgiutiu V. Structural Health Monitoring with Piezoelectric Wafer Active Sensors Academic Press Oxford, UK 2014
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Keshmiry, A., Hassani, S., Mousavi, M., & Dackermann, U. (2023) · Buildings · doi:10.3390/buildings13040918 · Cited by 96 · see citing works
- Authors
- Feng, T., & Aliabadi, M. H. F.
- Affiliations
- Imperial College London (GB)
- Corresponding author
- Feng, Tianyi
- Venue
- Materials
- Publisher
- MDPI AG
- Published
- 2021-10-16
- Volume
- 14
- Issue
- 20
- Pages
- 6148
- ISSN
- 1996-1944 (ISSN-L)
- PMC
- PMC8540291
- OpenAlex
- W3206182930
- Cited by
- 38
- References
- 31
- Citations by year
- 2026: 8 · 2025: 7 · 2024: 9 · 2023: 7 · 2022: 6 · 2021: 1
- FWCI
- 2.81
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Materials (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- China Scholarship Council ([2017]5082)
- Topics
- Physical Sciences › Engineering › Mechanics of Materials › Ultrasonics and Acoustic Wave Propagation
- Physical Sciences › Engineering › Mechanics of Materials › Mechanical Behavior of Composites
- Physical Sciences › Engineering › Civil and Structural Engineering › Structural Health Monitoring Techniques
- Keywords
- structural health monitoring, composite plates, PZT transducers, piezoelectric sensors, ultrasonic guided waves, electromechanical impedance, fatigue loading, sensor integrity, embedded sensors, elastic modulus reduction, structural integrity assessment
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