... outperformed a conventional tube with an increase in specific energy absorption (SEA) and crush force efficiency (CFE) by up to 70% while sustaining a low increase in initial peak force (IPF). Furthermore, the tube demonstrated a greater rate of energy dissipation compared to tubes with conventional surface...

...Haoyuan Guo; Jianxun Zhang Foam sandwich tube is composed of two tubes and a lightweight foam core possessing various advantages, i.e., low density, excellent mitigation performance and energy absorption, etc. With the hope of enhancing the load bearing and energy absorption capacity of energy...

... and energy-absorbing capacity of the expansion of the MFSC-Tube can be enhanced by adjusting such parameters as the ratio of the foam thickness to the wall thickness of the metal circular tube and the semi-angle of the die. Last but not least, the specific energy absorption (SEA) of the MFSC-Tube under...

...Yang Zhou; Yi Pan; Qiang Gao; Beibei Sun The innovative design of microstructure topology is of great significance to improve the energy absorption performance of honeycombs. In this paper, by embedding a hexagonal substructure in each inclined wall of the traditional reentrant (RE) honeycomb...

... foam 3D mesoscopic model impact failure analytical model energy absorption dynamics plasticity structures Beijing Institute of Technology 10.13039/501100005085 KFJJ18-07M National Natural Science Foundation of China 10.13039/501100001809 11972281 Natural Science...

... a stable crushing behavior, the extruded ones were much more applicable as lightweight energy absorbers because of their good energy absorption capacity, repeatability, and low cost. The numerically simulated force–displacement curve and the corresponding deformation morphologies of the CSCS compared well...

...Yizhe Liu; Feng Xiong; Kuijian Yang; Yuli Chen Impact accidents cause great damage to lives and properties because the destructiveness, direction, and action mode of impact loadings can hardly be predicted. Ordinary thin-walled tube systems for energy absorption require outside constraints...

... for energy absorption purpose as well. Therefore, improving the energy absorption capacity of these slender thin-walled structures can significantly benefit the crashworthiness of the equipment. However, these slender structures are inclined to deform in Euler buckling mode, which greatly limits...

.... In addition, this structure can be cyclically loaded and unloaded, thanks to its good stability and reproducibility, making it attractive in applications requiring repetitive energy absorption. Fig. 12 Comparison of the experimental and simulated deformation behavior of a six-layer cylindrical structure...

...., the global slenderness and local slenderness) and those related to the kirigami pattern (i.e., the length ratio and the relative position ratio) could significantly affect the collapse behavior of the cruciforms. References [1] Lu , G. , and Yu , T. , 2003 , Energy Absorption of Structures...

... of A1_1, A2_1 and A3_1 As mentioned in Sec. 1 , ratio b / t is an important factor that influences the collapse mode of a thin-walled square tube. Different collapse modes can be triggered when b / t varies, resulting in very different energy absorption capabilities. The half tube...

...Binchao Li; Guiping Zhao; Tian Jian Lu A theoretical study on the vibration isolation and energy absorption capability of high porosity closed-cell aluminum foams subjected to impact loading is presented. A double degree of freedom (DDF) spring-damper-foam collision model (mimicking important...

... of the present analytical predictions with numerical, previous experimental, and analytical results are presented, respectively. It is shown that local denting has a significant effect on the finite deflection response of the metal foam core sandwich structure. The load-carrying and energy absorption capacities...

... and hence affect the crushing characteristics. While the blast-induced imperfections enhance the energy absorption characteristics of the tubes they also affect the lobe formation process. In Part II, the finite element package ABAQUS/EXPLICIT v6.5-6 is used to construct a 1 2 symmetry model by means...

... and hence affect the crushing characteristics. While the blast-induced imperfections enhance the energy absorption characteristics of the tubes they also affect the lobe formation process. In Part II, the finite element package ABAQUS/EXPLICIT v6.5–6 is used to construct a 1 2 symmetry model by means...

...S. B. Bodlani; S. Chung Kim Yuen; G. N. Nurick This paper is Part II of a two-part article and presents the results of numerical simulations conducted to investigate the energy absorption characteristics of square tubes subjected to dynamic axial loading. Part I reports the experimental results...

...S. B. Bodlani; S. Chung Kim Yuen; G. N. Nurick This two-part article reports the results of experimental and numerical works conducted on the energy absorption characteristics of thin-walled square tubes with multiple circular hole discontinuities. Part I presents the experimental tests in which...

...A. Abdul-Latif; R. Baleh Of particular interest is the experimental study of the complex dynamic plastic buckling of circular metallic shells and their energy absorption capacity. Initially proposed by Baleh and Abdul-Latif (2006), “Quasi-Stalic Biaxial Plastic Buckling of Tubular Structures used...