Nowadays, thin-walled structures are recognized for their significance in numerous technical fields particularly in automotive, aeronautics, and structural engineering. State-of-the-art studies reveal various techniques for improving energy absorptions of thin-walled structures, and each technique has its pros and cons. This paper proposes a combination of two energy absorption techniques to attain a high-level energy absorber component applicable to a wide range of blast-resistant design and crashworthiness applications. Thus, experimental and numerical investigations have been conducted to study the influence of applying internal stiffeners and staking composite layers on the behavior of aluminum (AL) thin-walled tubes. Single, double, and quadruple thin-walled metallic and hybrid tubes were tested under axial quasi-static compression test. The specimens were fabricated from unidirectional CFRP, epoxy resin and aluminum alloy T6061-T6. Various crashworthiness parameters were assessed such as the absorbed crash energy, specific energy absorption, crush force efficiency, average crushing load and peak load absorbed in order to highlight the behavior of the novel configurations. The hybrid quadrable multi-cell structure showed the highest energy absorption capabilities between the other proposed configurations. Its energy absorption improved by 116% compared to the solo hollow AL tube. In addition, nonlinear finite element analysis (FEA) using the commercial ANSYS-LSDYNA Workbench software was utilized to verify the experimental results. Numerical simulations showed very good decent agreement with the experimental results. The energy absorption of the proposed techniques has been significantly improved, with the most effective configuration (Hybrid quadruple-cell) showed 131.70% more than the control single-cell AL tube.

如今，薄壁结构在许多技术领域，特别是在汽车，航空和结构工程中的重要性得到了认可。最新的研究揭示了各种改善薄壁结构能量吸收的技术，每种技术都有其优缺点。本文提出了两种能量吸收技术的组合，以实现适用于各种防爆设计和耐撞性应用的高级能量吸收器组件。因此，已经进行了实验和数值研究，以研究施加内部加强筋和加固复合层对铝（AL）薄壁管性能的影响。在轴向准静态压缩测试下测试了单管，双管和四管薄壁金属管和混合管。标本由单向CFRP，环氧树脂和铝合金T6061-T6制成。评估了各种耐撞性参数，例如吸收的碰撞能量，比能量吸收，破碎力效率，平均破碎载荷和吸收的峰值载荷，以突出新型构造的性能。在其他建议的配置中，混合可四重多单元电池结构显示出最高的能量吸收能力。与单独的中空AL管相比，其能量吸收提高了116％。此外，利用商业ANSYS-LSDYNA Workbench软件进行的非线性有限元分析（FEA）被用于验证实验结果。数值模拟结果与实验结果非常吻合。