The authors gratefully acknowledge the support from the National Natural Science Foundation of China (Grant No. 52202455). This paper also supported by the Natural Science Foundation of Hunan Province (Grant No.2023JJ31015).
机构署名：
本校为第一机构
院系归属：
交通运输与物流学院
摘要：
The use of expanding-splitting circular tubes was proposed to improve crashworthiness and overcome their deficiencies in terms of low energy absorption and poor stroke efficiency in a single deformation mode. Quasi-static experiments and finite element simulations were conducted to study the force-displacement response of circular tubes under combined deformation modes. A theoretical model of the circular tube during expanding-splitting deformation was established to reveal the coupled expanding-splitting deformation and energy-absorbing mechanism of the circular tube. Furthermore, the factors...
