Article
Engineering, Civil
Zhejian Li, Qiusong Yang, Rui Fang, Wensu Chen, Hong Hao
Summary: The novel Kirigami modified honeycomb structure significantly improves energy absorption capacity and average crushing resistance compared to standard honeycomb and reinforced honeycomb in all three axial directions. The KHC does not develop an initial peak force under out-of-plane crushing and demonstrates a moderate improvement in crushing resistance in in-plane 2 direction.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Yousef Mohamadi, Hamed Ahmadi, Omid Razmkhah, Gholamhossein Liaghat
Summary: This study experimentally investigated the energy absorption of elastomeric foam-filled aluminum honeycomb under quasi-static compression loading and low velocity impact. The results revealed that adding glass microballoon particles to the elastomer significantly enhanced energy absorption, increased maximum load, mean crushing load, and total absorbed energy, while showing less deformation compared to conventional filled structures, making it a promising energy absorber.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Ruixian Qin, Xi Wang, Feng Gao, Bingzhi Chen
Summary: This study introduced a novel multi-cell hierarchical hexagon honeycomb structure by changing the topological connection, which enhances energy absorption efficiency and crashworthiness performance. Optimization of wall thickness and length coefficient can improve specific energy absorption and decrease peak crushing force, leading to superior crashworthiness performance. The optimal geometric parameters of the HHHS show significant enhancement and energy absorbing potential, making it a suitable choice for energy absorption considering the balance between crashworthiness and cost.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Zhipeng Gao, Dong Ruan
Summary: Inspired by the concept of hierarchy, this study proposes two types of hierarchical multi-cell square tubes (HMSA and HMSB) and numerically investigates their crashworthiness with different wall thicknesses and hierarchical orders. The results show that the peak crushing force of HMSA and HMSB tubes is smaller than that of single square tubes, which reduces the potential injury or damage. Moreover, the mean crushing force, energy absorption, crushing force efficiency, and specific energy absorption of HMSA and HMSB tubes increase with the hierarchical order and wall thickness.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Zhonggang Wang, Shaocheng Yao, Kai Liu, Kai Wei, Tianyu Gao, Minquan Zhao
Summary: This study proposes a design strategy of embedding kresling-origami into conventional honeycomb to improve its energy absorption capacity. The experiment results show that the proposed origami-embedded honeycomb has higher specific energy absorption and comparable energy absorption performance compared to conventional ones. The mechanism of the embedding design strategy is clarified through comparison analysis between experiments and simulations. This strategy provides a novel way to optimize the mechanical properties of honeycomb and may inspire new innovations of metamaterials.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Mechanical
Dengfeng Wang, Baichuan Liu, Hongyu Liang
Summary: Based on the finite element method, this study investigated the energy absorption behavior of an AL/CFRP hybrid tube under multi-angle compression conditions. It was found that aluminum alloy is the main source of energy absorption, while carbon fiber can induce a stable deformation mode by imposing lateral deformation constraints. Parametric studies were conducted to explore the influences of CFRP winding angle, material thickness ratio, and tube diameter on energy absorption capacity and contribution. The research provides valuable recommendations and guidelines for designing multi-material energy-absorbing components under complex loading conditions.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Chemistry, Physical
Younes Djemaoune, Branimir Krstic, Stefan Rasic, Daniel Radulovic, Marjan Dodic
Summary: This study investigated the crashworthiness performance degradation of damaged 5052 aluminum honeycomb panels and the effectiveness of reinforcement tubes in improving their in-plane crushing resistance. Numerical simulations, experimental comparisons, and theoretical analysis showed that the insertion of reinforcement tubes significantly enhanced the crashworthiness performance of damaged honeycomb panels.
Article
Mechanics
Xiang Peng, Guoao Liu, Jiquan Li, Huaping Wu, Weiqiang Jia, Shaofei Jiang
Summary: This study introduces a novel honeycomb structure that can enhance compression property and energy absorption capacity by utilizing 4D printing technology and polylactic acid materials. The shape of the structure can be transformed under external loading and temperature stimulus. Experimental results show that the developed honeycomb structure has high compression property and energy absorption capacity, indicating broad application prospects in multifunctional honeycomb structures in the future.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Hongyu Liang, Wenqian Hao, Guilian Xue, Baichuan Liu, Yongfeng Pu, Fangwu Ma
Summary: This paper introduces the center-vertex honeycomb (CVH) structure and its application in multi-stage energy absorption devices. The energy absorption characteristics of CVH under in-plane quasi-static compression load are investigated through numerical, theoretical, and experimental methods, proposing a design strategy with dual-platform features.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Civil
Yao Yu, Xiaobo Gong, Jialin Li, Guangjun Gao, Jian Li
Summary: This paper presents a novel multi-cell tube energy absorption structure made of aluminum alloy for ultra-large energy absorption field. The proposed structure has the advantages of low cost, large size, light weight, high energy absorption capacity, and large crushing force. Experimental and simulation results demonstrate its feasibility and superior performance. This structure can be applied to ultra-large energy absorption fields such as train crashworthiness protection.
Article
Polymer Science
Colleen M. Murray, Min Mao, Jungjin Park, John Howard, Norman M. Wereley
Summary: Energy-absorbing materials are widely used in aerospace and automotive applications. This study designed additively manufactured TPE honeycombs with buckling initiators, which increased crashworthiness characteristics and maintained crush efficiency even after multiple rounds of compression testing. The samples with buckling initiators showed a higher crush efficiency compared to their counterparts without buckling initiators, regardless of the strain rate used.
Article
Engineering, Mechanical
Chao Gong, Zhonghao Bai, Yulong Wang, Linwei Zhang
Summary: This study introduces a novel hierarchical multi-cell tubes (NHMTs) design with superior crashworthiness performance compared to traditional multi-cell tubes (TMTs). The hierarchical level significantly affects the crashworthiness of NHMTs, and theoretical models accurately predict their energy absorption behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Mechanics
Lulu Wei, Xuan Zhao, Qiang Yu, Guohua Zhu
Summary: The study found that star-triangular honeycomb structures exhibit stable deformation and a negative Poisson's ratio effect in different directions, with this effect weakened in the second direction. Numerical simulation results were highly consistent with theoretical predictions, showing that the influence of inclined angle theta on STH is more significant than that of t/l.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Chao Gong, Zhonghao Bai, Yong Hu
Summary: This study proposes a novel multi-cell square tube and its hierarchical structures to improve the energy absorption efficiency of multi-cell thin-walled structures. The finite element model is built and validated with experiment results, and the theoretical model is derived and validated to predict the energy absorption behaviors. The results indicate that the novel multi-cell square tubes and its hierarchical structures exhibit superior crashworthiness performance than corresponding traditional multi-cell square tubes.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Composites
Shili Guan, Jun Wang, Liao Pan, Lixin Lu
Summary: This paper presents a study on a honeycomb paperboard filled with foam particles, investigating the effects of parameters such as cell size, honeycomb paperboard thickness, and foam particle size on interaction, energy absorption, and half wavelength. The experimental results demonstrate that foam particles increase the initial crushing strength and energy absorption of honeycomb paperboard, with the stress in the filled structure rising exponentially during crushing. Additionally, the research reveals a decrease in densification strain, an increase in the number of folds, and a decrease in half wavelength. Moreover, the smaller the foam particles, the greater the effect of filling.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Article
Engineering, Mechanical
Zhang Xiong, Zhang Hui
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2018)
Article
Engineering, Civil
Xiong Zhang, Hui Zhang, Kehua Leng
THIN-WALLED STRUCTURES
(2018)
Article
Mechanics
Zhixin Huang, Xiong Zhang, Chongyi Yang
COMPOSITE STRUCTURES
(2019)
Article
Engineering, Mechanical
Xiong Zhang, Hui Zhang, Chongyi Yang, Kehua Leng
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2019)
Article
Engineering, Civil
Zhixin Huang, Xiong Zhang
THIN-WALLED STRUCTURES
(2019)
Article
Engineering, Mechanical
Baiwei Zhang, Xiong Zhang, Shilan Wu, Hui Zhang
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2019)
Article
Mechanics
Zhixin Huang, Xiong Zhang
COMPOSITE STRUCTURES
(2020)
Article
Engineering, Multidisciplinary
Zhixin Huang, Xiong Zhang, Chongyi Yang
COMPOSITES PART B-ENGINEERING
(2020)
Article
Engineering, Civil
Hui Zhang, Xiong Zhang
THIN-WALLED STRUCTURES
(2020)
Article
Engineering, Civil
Zhixin Huang, Xiong Zhang, Xinrong Fu
THIN-WALLED STRUCTURES
(2020)
Article
Mechanics
Xinrong Fu, Xiong Zhang, Zhixin Huang
Summary: This study investigates the energy absorption characteristics of Nylon and Al/Nylon hybrid tubes manufactured by 3D printing, finding that Nylon tubes alone are not suitable for energy absorption, while hybrid tubes can avoid adverse effects and show high efficiency. Theoretical expressions are derived to predict mean crushing forces of the hybrid tubes, with predictions matching well with experimental results.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Zhixin Huang, Ying Li, Xiong Zhang, Wei Chen, Daining Fang
Summary: This study compares the bending collapse characteristics and energy dissipation mechanisms of aluminum/CFRP hybrid beams, finding that the energy absorption efficiency of the hybrid beams can be significantly improved under specific conditions.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Mechanical
Xiong Zhang, Xinrong Fu, Qingchun Yu
Summary: Thin-walled beams are often subjected to transverse or oblique loads in real crash accidents, and their energy absorption capacity under transverse loading is much lower than under axial loading. Arched structures have the potential to convert transverse forces into axial forces, improving the energy absorption and crashworthiness performance of structures significantly.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Engineering, Civil
Xinrong Fu, Xiong Zhang, Qingchun Yu
Summary: Arched thin-walled structures have the potential to significantly increase the bending resistance of beams under transverse loading by converting transverse forces into axial forces. This study investigates the crashworthiness of an optimized arched structure with circular section (OASCS) and finds that OASCS specimens exhibit nearly 5 times the energy absorption and specific energy absorption (SEA) of corresponding straight tubes. The forming process of OASCS has a 20% increase in SEA. The response of OASCS is found to be insensitive to span, and crashworthiness optimization and partial multi-cell enhancement further improve the SEA by about 40% and 60% respectively.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Xinrong Fu, Xiong Zhang
Summary: This study investigates the bending behavior of thin-walled arched beams and their energy absorption properties. Experimental tests and numerical simulations show that arched beams have better energy absorption performance compared to straight beams, and beams with square sections generally have better energy absorption efficiency than those with circular sections.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Mechanical
A. P. Simonov, I. V. Sergeichev
Summary: The direct impact method provides a higher sample deformation rate and reliable results for materials with low yield strength and hardening rate. This study proposes an alternative procedure for calculating the strain rate in order to improve accuracy of the direct impact method for a wide range of metals and alloys. The proposed method has been validated through finite element analysis and direct impact tests, and it qualitatively changes the shape of the stress-strain curve by adding an unloading area.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Qiang Wei, Zifeng Li
Summary: This study investigates the dynamic bifurcation of a column when it impacts a rigid plane vertically, which is different from the classical Eulerian static buckling. The findings show that either the dimensionless critical buckling time or the dimensionless critical buckling velocity can be used to determine whether buckling has occurred. Different dimensionless initial defects in the column result in different dimensionless displacement responses, and the nonlinear effect influences the analysis results.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. C. Price, M. J. Cole, K. H. Harriss, L. S. Alesbrook, M. J. Burchell, P. J. Wozniakiewicz
Summary: This article introduces a new gas gun developed at the Centre for Astrophysics and Planetary Science, University of Kent, which can produce vertical impacts at speeds up to 2 km/s. The gun design, assembly, operation, and ancillary components are described in detail. The experimental results demonstrate that the gun performs as expected.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Fanny Gant, Gabriel Seisson, Patrice Longere, Skander El Mai, Jean-Luc Zinszner
Summary: The article investigates the high strain rate response of metals and alloys under radial expansion and compares different materials. The results show that different materials exhibit different responses in terms of deformation and fracture.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. D. Fitzgerald, J. D. Pecover, N. Petrinic, D. E. Eakins
Summary: This study investigates the mechanism for the destruction of thick flyers accelerated using electric guns and proposes strategies for mitigating their break-up based on experimental results and mathematical models. The findings suggest that limiting the maximum pressure within the flyer and extending the current rise time can prevent flyer failure, increasing the efficiency and shock duration of the electric gun.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Guowen Gao, Enling Tang, Guolai Yang, Yafei Han, Mengzhou Chang, Kai Guo, Liping He
Summary: In this study, the dynamic constitutive model of Al/Ep/W material was investigated and verified through experiments and numerical simulations. The proposed model accurately described the mechanical behavior of the material under high strain rates, providing an important reference for evaluating the response characteristics of the new energetic material projectile to lightweight aluminum armor.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Minzu Liang, Meng Zhou, Xiangyu Li, Yuliang Lin, Fangyun Lu
Summary: UHMWPE fiber mesh reinforced polyurea composites improve structural strength and blast resistance performance, and can alter the failure mode. Loose filler is generated as polyurea melts and fragments penetrate. Joint loads are classified into three categories based on their connection and duration.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Ashutosh Jha, Guglielmo Cimolai, Iman Dayyani
Summary: The present article introduces the Zero Poisson's Ratio Fish Cells metamaterial and investigates the effects of Poisson's ratio on the crashworthiness of different lattice structures. Numerical results demonstrate that the Zero Poisson's Ratio model possesses greater stability and structural integrity with minimal edge deformations.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Hongbo Zhang, Dayong Hu, Xubin Ye, Xin Chen, Yuhuai He
Summary: This study investigated the impact of spherical foreign objects on simulated blade edges through experimental and theoretical analysis. The experimental results showed that increasing impact energy resulted in larger damage sizes, and three distinct types of deformations were observed in FOD. Accurate FOD prediction models were developed using linear and power formulas. The theoretical analysis using a spring-mass system based on Winkler's elastic-plastic foundation theory yielded results in good agreement with experimental measurements, providing a reference for fatigue life assessment of aeroengine blades.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
L. M. Reitter, Y. A. Malik, A. B. Jahn, I. V. Roisman, J. Hussong
Summary: This study characterizes the dynamic strength of wet granular ice layers through impact tests. The results reveal strong connections between ice particles in ice layers generated by ice crystal accretion. Comparable strength values can be obtained by reinforcing ice particle connections in ice layers prepared in the laboratory.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Kyle Mao, Genevieve Toussaint, Alexandra Komrakova, James D. Hogan
Summary: In this study, the Generalized Incremental Stress State dependent damage MOdel (GISSMO) is used to simulate the high-velocity impact failure of Armox 500T steel. The GISSMO is calibrated and validated using experimental data from the literature, and is then applied to investigate the impact failure behaviors of bi-layered steel systems. The results provide new capabilities and insights for the design of armor structures and evaluation of impact failure behaviors in Armox 500T/RHA bi-layered systems.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Asim Onder
Summary: This paper investigates the performance of bumper plates with wavy surfaces under hypervelocity impact and finds that they are more effective in decreasing the impact energy compared to flat plates. The study also reveals the distinctive debris cloud generation that has never been reported before.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Zhi-Yong Yin, Xiao-wei Chen
Summary: This study numerically reveals three typical fracture modes of explosively-driven metal shells and investigates the influencing factors of different fracture modes through experimental data and dimensional analysis.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Jiri Pachman, David J. Chapman, Marek Foglar, Martin Kunzel, William G. Proud
Summary: Through the study of different types of concrete, it was found that despite their compositional complexity, range of compressive strengths, and reinforcement methods, the average Hugoniot data were remarkably similar between different concrete types.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Konstantin Kappe, Klaus Hoschke, Werner Riedel, Stefan Hiermaier
Summary: This paper presents a multi-objective optimization procedure for effectively designing gradient lattice structures under dynamic loading. The aim is to maximize energy absorption characteristics and achieve a lightweight design. Through considering design variables such as the relative density and density gradient, the peak crushing force reduction and maximized specific energy absorption are simultaneously optimized. A simplified beam-based finite element model is used to efficiently model and simulate the lattice structures. An artificial neural network is trained to predict energy absorbing characteristics and find optimal lattice structure configurations. The network is trained using a multi response adaptive sampling algorithm, allowing parallel simulation with automatically generated finite element models. A multi-objective genetic algorithm is then used to find optimal combinations of design parameters for lattice structures under different impact velocities and cell topologies.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
