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<p>The heating and curing process plays a critical role in the manufacturing efficiency and cost of carbon fiber-reinforced polymer (CFRP) components. Conventional two-step processes involving separate lay-up and curing are inefficient and time-consuming. To address this limitation, this study proposes an in situ rapid forming method for CFRP rotational components by integrating electromagnetic induction heating with CFRP manufacturing. A mesoscopic finite element model of a filament-wound CFRP structure was established using the representative volume element (RVE) approach to determine equivalent material properties for macroscopic analysis. A rotating macroscopic finite element model incorporating a U-shaped induction coil was then developed to investigate the effects of coil topology, mold material, and rotational speed on the temperature field evolution of CFRP components under rotation. Finally, induction heating experiments were conducted to validate the numerical results. The results demonstrate that the U-shaped hollow coil improves the temperature uniformity by 27.7% compared with the U-shaped solid coil, and the numerical predictions show good agreement with experimental measurements. These findings indicate that the proposed in situ induction heating-based rapid forming approach provides a practical solution for achieving uniform and efficient curing of rotational CFRP components, with potential applications in advanced composite manufacturing.</p>

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Induction heating of rotating filament-wound CFRP components: multiscale modeling, temperature field regulation, and experimental validation

  • 期刊论文

  • 发表日期：

    2026年3月25日

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  • Yunfei Gu,
  • Heng Wang,
  • Tianyu Fu

摘要

The heating and curing process plays a critical role in the manufacturing efficiency and cost of carbon fiber-reinforced polymer (CFRP) components. Conventional two-step processes involving separate lay-up and curing are inefficient and time-consuming. To address this limitation, this study proposes an in situ rapid forming method for CFRP rotational components by integrating electromagnetic induction heating with CFRP manufacturing. A mesoscopic finite element model of a filament-wound CFRP structure was established using the representative volume element (RVE) approach to determine equivalent material properties for macroscopic analysis. A rotating macroscopic finite element model incorporating a U-shaped induction coil was then developed to investigate the effects of coil topology, mold material, and rotational speed on the temperature field evolution of CFRP components under rotation. Finally, induction heating experiments were conducted to validate the numerical results. The results demonstrate that the U-shaped hollow coil improves the temperature uniformity by 27.7% compared with the U-shaped solid coil, and the numerical predictions show good agreement with experimental measurements. These findings indicate that the proposed in situ induction heating-based rapid forming approach provides a practical solution for achieving uniform and efficient curing of rotational CFRP components, with potential applications in advanced composite manufacturing.