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This study investigates the anti-crushing and energy absorption performance of single and nested tube structures used as crushing absorbers. The tube sections analyzed had dimensions of 60 × 60 mm2, 70 × 70 mm2, and 90 × 90 mm2. Compared to the S1 tube, the S3 tube’s Peak Force (PF) was 86.6% larger, while its Specific Energy Absorption (SEA) was 29.4% smaller. Additionally, the NT sample exhibited 86.6% higher PF, 85.6% higher Mean Force (MF), and 85.6% higher Energy Absorption (EA) compared to the S1 sample. The study found a direct correlation between section size and mass: as these increase, PF increases while SEA decreases. The Crushing Force Ratio (CFR) emerged as a critical parameter in the selection and design of energy-absorbing tubes. Among the samples tested, the NT nested configuration, which demonstrated superior crushing resistance and more efficient space utilization than single-tube samples, is well-suited for energy-absorbing devices.

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Effect of Cross-Section on Anti-crushing and Energy Absorption Features of Single and Nested Square Tubes

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • TrongNhan Tran,
  • PhucThien Nguyen,
  • NhatTan Nguyen,
  • DucHieu Le

摘要

This study investigates the anti-crushing and energy absorption performance of single and nested tube structures used as crushing absorbers. The tube sections analyzed had dimensions of 60 × 60 mm2, 70 × 70 mm2, and 90 × 90 mm2. Compared to the S1 tube, the S3 tube’s Peak Force (PF) was 86.6% larger, while its Specific Energy Absorption (SEA) was 29.4% smaller. Additionally, the NT sample exhibited 86.6% higher PF, 85.6% higher Mean Force (MF), and 85.6% higher Energy Absorption (EA) compared to the S1 sample. The study found a direct correlation between section size and mass: as these increase, PF increases while SEA decreases. The Crushing Force Ratio (CFR) emerged as a critical parameter in the selection and design of energy-absorbing tubes. Among the samples tested, the NT nested configuration, which demonstrated superior crushing resistance and more efficient space utilization than single-tube samples, is well-suited for energy-absorbing devices.