Abstract
Recently, the usage of smart composite structures has grown dramatically in various real-life applications because of their excellent actuation and self-sensing capabilities. The presence of free edge stresses can ultimately cause delamination or debonding failure in smart composites. This review overviews the recent studies on the stress function-based (SFB) approaches developed for the free edge interlaminar stress analysis of smart composites. SFB approaches are widely popular because, in these approaches, the assumed stress functions can precisely fulfill traction-free and free edge boundary conditions. The free edge interlaminar stress distributions are calculated by assuming the appropriate stress functions. This review further summaries the different methods that have been proposed for the control and reduction of interlaminar stresses in smart composite structures to avoid the debonding in composite layer interfaces and the piezoelectric sensor debonding from the host composite laminate. The paper ends with the concluding comments and highlights the possible future outlooks in this research area.
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Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT)(No. 2020R1A2C1006613) and was also supported by the Ministry of Trade, Industry, and Energy (MOTIE) and the Korea Institute for Advancement of Technology (KIAT) through the International Cooperative R&D program (Project No. P0016173).
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Khalid, S., Kim, H.S. Recent Studies on Stress Function-Based Approaches for the Free Edge Stress Analysis of Smart Composite Laminates: A Brief Review. Multiscale Sci. Eng. 4, 73–78 (2022). https://doi.org/10.1007/s42493-022-00079-8
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DOI: https://doi.org/10.1007/s42493-022-00079-8