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<p>Carbon fiber-reinforced polymer (CFRP) composites are widely utilized in aerospace applications owing to their high specific strength and lightweight characteristics. However, optimizing their multifunctional performance requires simultaneous consideration of dynamic vibration response and electrical loading behavior,&#xa0;an area that remains insufficiently explored. This study presents a novel experimental investigation that establishes direct correlations between the electrical and dynamic properties of CFRP laminates as a function of stacking sequence and fiber orientation. Unlike previous studies that examine these properties independently, the present work integrates both aspects to elucidate the coupled influence of laminate architecture on damping, electrical conductivity and Joule heating characteristics. The results reveal that damping capacity is inversely proportional to electrical conductivity, and that cross-ply laminates exhibit higher conductivity compared to unidirectional configurations. Correlation coefficients were further evaluated between electrical conductivity, damping ratio, loss factor, and natural frequency to quantify these relationships. The findings demonstrate that the number of fiber–fiber contact points and stacking configuration critically govern multifunctional performance. This study provides new insights into designing smart CFRP laminates with tailored electromechanical behavior, offering pathways for improved lightning protection, <i>in-situ</i> curing of repair patches, and resistance-based health monitoring in aerospace structures.</p>

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Influence of laminate stacking on vibration and electrical properties of CFRP for aerospace applications

  • 期刊论文

  • 发表日期：

    2026年4月20日

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  • Jitendra Bhaskar,
  • Ankur Dwivedi,
  • Bishakh Bhattacharya

摘要

Carbon fiber-reinforced polymer (CFRP) composites are widely utilized in aerospace applications owing to their high specific strength and lightweight characteristics. However, optimizing their multifunctional performance requires simultaneous consideration of dynamic vibration response and electrical loading behavior, an area that remains insufficiently explored. This study presents a novel experimental investigation that establishes direct correlations between the electrical and dynamic properties of CFRP laminates as a function of stacking sequence and fiber orientation. Unlike previous studies that examine these properties independently, the present work integrates both aspects to elucidate the coupled influence of laminate architecture on damping, electrical conductivity and Joule heating characteristics. The results reveal that damping capacity is inversely proportional to electrical conductivity, and that cross-ply laminates exhibit higher conductivity compared to unidirectional configurations. Correlation coefficients were further evaluated between electrical conductivity, damping ratio, loss factor, and natural frequency to quantify these relationships. The findings demonstrate that the number of fiber–fiber contact points and stacking configuration critically govern multifunctional performance. This study provides new insights into designing smart CFRP laminates with tailored electromechanical behavior, offering pathways for improved lightning protection, in-situ curing of repair patches, and resistance-based health monitoring in aerospace structures.