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<p>This paper analyzes the crashworthiness of Al (Aluminum)/CFRP (Carbon Fiber-Reinforced Polymer) hybrid square tubes under transverse compressive loads. The analysis is conducted through transverse compression experiments combined with simulation models. Based on the models, the study investigates the effects of CFRP ply angles, interfacial connection conditions (adhesion or co-curing), and the internal Al structure on the performance of the hybrid square tubes under transverse compressive loads. Finally, a response surface model (RSM) is employed to fit the relevant parameters. To minimize the impact of transverse compressive loads on the hybrid square tube structure, an improved multi-objective serpentine optimization (IMOSO) algorithm is employed to determine the optimal hybrid square tube structure. Compared to the original square tube structure, the specific energy absorption (<i>SEA</i>) value increased by 61.46%, while the peak crushing force(<i>PCF</i>) decreased by 23.25%.</p>

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Crashworthiness study of aluminum/carbon fiber-reinforced polymer hybrid square tubes based on multivariable simulation and multi-objective optimization

  • 期刊论文

  • 发表日期：

    2026年2月19日

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  • Na Nie,
  • Qihua Ma,
  • Chunyan Zhang,
  • Qilin Li,
  • Xuehui Gan

摘要

This paper analyzes the crashworthiness of Al (Aluminum)/CFRP (Carbon Fiber-Reinforced Polymer) hybrid square tubes under transverse compressive loads. The analysis is conducted through transverse compression experiments combined with simulation models. Based on the models, the study investigates the effects of CFRP ply angles, interfacial connection conditions (adhesion or co-curing), and the internal Al structure on the performance of the hybrid square tubes under transverse compressive loads. Finally, a response surface model (RSM) is employed to fit the relevant parameters. To minimize the impact of transverse compressive loads on the hybrid square tube structure, an improved multi-objective serpentine optimization (IMOSO) algorithm is employed to determine the optimal hybrid square tube structure. Compared to the original square tube structure, the specific energy absorption (SEA) value increased by 61.46%, while the peak crushing force(PCF) decreased by 23.25%.