Article
Engineering, Civil
M. A. Mansor, Z. Ahmad, M. R. Abdullah
Summary: This study aims to evaluate the crushing behavior of aluminium-glass fibre reinforced plastic (GFRP) fibre metal laminate (FML) subject to dynamic loading conditions. The FML tube showed a good energy absorption capability, making it a suitable lightweight candidate for energy absorbing applications.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
S. K. Tak, M. A. Iqbal
Summary: The finite element computations were used to study the axial compression behavior of thin-walled metallic tubes under quasi-static and dynamic loading conditions in this research. Different geometric shapes of tubes demonstrate varied energy absorption and deformation characteristics under different loading conditions.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Haibao Liu, Jin Zhou, Di Zhang, Shipeng Li, Ioannis Giannopoulos
Summary: This paper presents a three-dimensional composite damage model for predicting the crush response of thin-walled structures. The model is validated using experimental data and is used to investigate the effects of contact friction and ply blocking on the crush response of thin-walled composite structures. The results show that friction has a positive effect on the crushing performance, while ply blocking inhibits it.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
Yubo Hou, Yong Zhang, Xiaolei Yan, Xiongming Lai, Jiming Lin
Summary: This paper presents a new design method for the sandwich column, and validates the accuracy of this design method through experiments and numerical analysis. The study finds that the geometrical characteristics of the sandwich column have a significant impact on its crashworthiness. The results show that the sandwich column with specific design parameters has the greatest energy absorption capacity.
THIN-WALLED STRUCTURES
(2021)
Article
Mechanics
Jianbo Chen, Eric Li, Qiqi Li, Shujuan Hou, Xu Han
Summary: In this study, a new type of energy-absorbing thin-walled tube with concave angles (CTSs) was proposed, with CTS3 demonstrating superior energy absorption capability compared to other tubes. Theoretical and numerical analyses predicted and evaluated the performance factors of CTS3, determining it as possessing the best energy absorption capacity.
COMPOSITE 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
Materials Science, Multidisciplinary
Omer Adanur, Faruk Varol
Summary: In recent years, there has been an increase in studies focused on enhancing the energy absorption capabilities of thin-walled structures in vehicles. This study investigates the energy absorption and crushing behaviors of interpenetrating thin-walled structures under axial crushing conditions. The analysis shows that friction force and energy absorption have positive effects on the crashworthiness characteristics of thin-walled structures.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Mechanics
Mingzhe Li, Fuming Yang, Chi Zhan, Robert Mccoy, Dean Jaradi, Weiyi Lu
Summary: The use of hollow glass microspheres as filling material significantly enhances the energy absorption efficiency of thin-walled tubes by improving the interaction between the filler and the tube wall.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Rui Liang, Xi Liu, Yuanzhi Hu, Chengyue Jiang, Christophe Bastien
Summary: This paper presents a new methodology to investigate the crashworthiness potential of a series of novel foam-filled twelve right angles thin-walled structures (FTRATS) with different topological distributions. The complex proportional assessment (COPRAS) method was used to select the FTRATS configuration with the highest potential, followed by an optimization using adaptive multi-population genetic algorithm methods. The solution obtained improved the crashworthiness properties of the FTRATS, with increased crash load efficiency, reduced peak crushing force, and increased specific energy absorption.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Shilong Wang, Min Zhang, Wenjie Pei, Feng Yu, Yuhong Jiang
Summary: This study designs X-shaped rib-reinforced foam-filled tubes and analyzes the effects of different foam fillers and arrangement on their performance. The results show that diagonally filling the tubes with PLA foam blocks leads to better energy absorption capacity, while diagonally filling with two aluminum blocks achieves higher crushing strength. Additionally, filling the tubes with different foam blocks does not always have advantages.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Samer Fakhri Abdulqadir, Faris Tarlochan
Summary: This study validates the application of carbon fiber composite materials for energy absorption in vehicle crashes, demonstrating that new designs and composite materials can reduce weight without compromising safety. Experimental data was used to validate a computational model.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Wei Wang, Yajing Wang, Zhen Zhao, Zhenzhen Tong, Xinsheng Xu, Chee Wah Lim
Summary: In this paper, a crashworthiness design of foam-filled local nanocrystallized thin-walled tubes (FLNTs) is proposed, and the crashworthiness and deformation modes of FLNTs are studied through experiments and numerical analysis. The results show that local nanocrystallization is an effective method to enhance the crashworthiness for hexagonal FLNTs. Inspired by the strength mechanism, a novel nested foam-filled local surface nanocrystallization tube is further designed and studied in detail.
Article
Materials Science, Multidisciplinary
Xi Wang, Ruixian Qin, Bingzhi Chen
Summary: A novel nonuniform lattice-reinforced multi-cell tube based on topology optimization was proposed in this study to enhance crashworthy performances. Experimental and numerical models validated the significant improvements in energy absorption and crushing force efficiency of the tube structure.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Linwei Zhang, Yong Zhong, Wenxiao Tan, Chao Gong, Yong Hu, Zhonghao Bai
Summary: This study introduces a group of bionic thin-walled tubes inspired by the microstructure of bamboo and beetle forewing. Experimental testing and finite element modeling are conducted to validate their performance. The crushing performance of bionic thin-walled tubes and traditional thin-walled tubes is compared, and the optimal design is determined.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Chemistry, Physical
Chenglin Tao, Xin Zhou, Zeliang Liu, Xi Liang, Wentao Zhou, Huijian Li
Summary: Based on thin-walled tubes and lattice structures, a hybrid structure was constructed with adjustable energy absorption. Experimental and numerical simulations were conducted to investigate the interaction between lattice packing and the metal shell, and the hybrid structure showed a 43.40% increase in energy absorption. It was found that the transverse cell number and gradient configuration had significant effects on specific energy absorption and peak crushing force, respectively. Furthermore, the effects of wall thickness, density, and gradient configuration on energy absorption were quantitatively analyzed.
Article
Engineering, Manufacturing
Xueshan Ding, Shutian Liu, Yang Liu, Zeqi Tong
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2020)
Article
Mechanics
Yunfeng Luo, Wenjiong Chen, Shutian Liu, Quhao Li, Yaohui Ma
COMPOSITE STRUCTURES
(2020)
Article
Materials Science, Multidisciplinary
Zihao Yang, Yongcun Zhang, Shutian Liu, Zhangming Wu
Summary: A novel dual-constituent lattice sandwich panel with in-plane zero thermal expansion and high structural stiffness properties is proposed in this study. Different cell configurations and parametric studies were conducted to optimize the design and show the control effectiveness of thermal deformation. The optimal cell designs that enable the sandwich panels to achieve in-plane zero thermal expansion and high stiffness properties are also presented.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
Mingli Li, Renjing Gao, Shutian Liu, Liyong Tong
SENSORS AND ACTUATORS A-PHYSICAL
(2020)
Article
Physics, Applied
Xiangyu Tian, Wenjiong Chen, Renjing Gao, Shutian Liu, Jiaxing Wang
APPLIED PHYSICS EXPRESS
(2020)
Article
Engineering, Electrical & Electronic
Qi Wang, Renjing Gao, Shutian Liu
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2020)
Article
Physics, Applied
Chuan Liu, Renjing Gao, Qi Wang, Shutian Liu
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Mechanics
Xiangyu Tian, Wenjiong Chen, Renjing Gao, Shutian Liu, Jiaxing Wang
COMPOSITE STRUCTURES
(2020)
Article
Optics
Pengfei Shi, Yangyang Cao, Hongge Zhao, Renjing Gao, Shutian Liu
Article
Engineering, Multidisciplinary
Yunfeng Luo, Ole Sigmund, Quhao Li, Shutian Liu
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2020)
Article
Engineering, Multidisciplinary
Renjing Gao, Yi Tang, Qi Wang, Shutian Liu
Summary: This paper proposes an optimization method of pattern synthesis for peak sidelobe level (PSLL) suppression and null controlling via element rotation and phase optimization. The improved MoM method is used to solve the radiation problem, and by optimizing the rotation angles and excitation phases, the radiation performance of the anti-interference array can be effectively improved.
ENGINEERING OPTIMIZATION
(2022)
Article
Computer Science, Interdisciplinary Applications
Quhao Li, Qiangbo Wu, Ji Liu, Jingjie He, Shutian Liu
Summary: This paper proposes a new formulation of frequency band constraint based on a modified Heaviside function for topology optimization of engineering structures. The method effectively addresses numerical issues in the optimization process and validates its effectiveness by considering frequency band constraints in optimized results.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2021)
Article
Materials Science, Multidisciplinary
Yang Liu, Shutian Liu
Article
Computer Science, Interdisciplinary Applications
Zheng Qiu, Quhao Li, Shutian Liu, Rui Xu
Summary: This paper proposes a dynamic clustering strategy for topology optimization, which automatically divides the macrodesign domain based on the directions and ratios of principal stress, without the need for predefined ranges to group microstructures and allowing for arbitrarily specified numbers of microstructures for optimization.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2021)
Article
Engineering, Electrical & Electronic
Qi Wang, Jun Yang, Yi Tang, Renjing Gao, Shutian Liu
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2020)
Article
Engineering, Civil
Jian Xue, Weiwei Zhang, Jing Wu, Chao Wang, Hongwei Ma
Summary: This study integrates a plate-type local resonator with varying free boundaries within a plate to convert the initial low-order global vibration modes into localized vibration modes. A novel semi-analytical method is proposed to analyze the free vibration of the plate with thickness and displacement discontinuities. The results show that by applying free boundary conditions, the low-order localized vibration frequencies can be significantly reduced without affecting the low-order global frequencies.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Merve Tunay
Summary: In recent years, there has been an increasing number of studies on the mechanical properties of sandwich structures manufactured with the Fused Deposition Modeling (FDM) method. However, there is still a lack of experimental data on the mechanical characteristics of FDM-manufactured sandwich structures under different thermal aging durations. In this experiment, the energy absorption capabilities of sandwich structures with different core geometries were investigated under various thermal aging durations. The results showed that the core topology significantly influenced the energy absorption abilities of the sandwich structures.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Zi-qin Jiang, Zi-yao Niu, Ai-Lin Zhang, Xue-chun Liu
Summary: This paper proposes a crosssection corrugated plate steel special-shaped column (CCSC) that improves the bearing capacity and overall stability of structural columns by using smaller material input. Through theoretical analysis and numerical simulation, the overall stability of the CCSC under axial compression is analyzed. The design method and suggestions for the stability of CCSC are put forward. Compared with conventional square steel tube columns, the CCSC has obvious advantages in overall stability and steel consumption.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Yong Zhang, Yangang Chen, Jixiang Li, Jiacheng Wu, Liang Qian, Yuanqiang Tan, Kunyuan Li, Guoyao Zeng
Summary: A hybrid TPMS method was proposed to develop a new TPMS structure, and the mechanical properties of different TPMS structures were studied experimentally and numerically. Results showed that the hybrid TPMS structure had higher energy absorption and lower load-carrying capacity fluctuation. Further investigations revealed that the topological shape and material distribution had significant influence on mechanical properties, and the hybrid additive TPMS structure exhibited significant crashworthiness advantage in in-plane crushing condition.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Tongfei Sun, Ye Liu, Kaoshan Dai, Alfredo Camara, Yujie Lu, Lijie Wang
Summary: This paper presents a series of experimental and numerical studies on the performance of a novel double-stage coupling damper (DSCD). The effects of damper configuration, friction-yield ratio (Rfy), and loading protocol on the hysteresis performance of the DSCD are investigated. The test results demonstrate that the arrangement of ribs in the DSCD increases its energy dissipation capacity. Numerical analysis reveals that the length of the friction mechanism and the clearance between the yield segment and the restraining system affect the energy dissipation and stability of the damper.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Jeonghwa Lee, Young Jong Kang
Summary: This study investigates the local buckling behavior and strength of I-shape structural sections by considering flange-web interactions through three-dimensional finite element analysis. The study provides a more reasonable estimation of local buckling strength by considering the ratio of flange-web slenderness and height-to-width ratio, and presents design equations for flange local and web-bend buckling coefficients.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Yizhe Chen, Wenfeng Xiang, Qingsong Zhang, Hui Wang, Lin Hua
Summary: This study investigates the surface modification of a nickel plate to improve the bonding strength with carbon fiber-reinforced plastics (CFRP). The results show that different surface modification methods, including sandblasting, coupling agent treatment, and compound coupling agent treatment, significantly enhance the bonding strength of CFRP/Ni joints. The research provides insights into improving the connection between nickel and CFRP, as well as other heterogeneous materials.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Agha Intizar Mehdi, Fengping Zhang, Moon-Young Kim
Summary: A spatial stability theory of mono-symmetric thin-walled steel beams pre-stressed by spatially inclined cables is derived and its validity is demonstrated through numerical examples. The effects of initial tension, deviator numbers, inclined cable profiles, and bonded/un-bonded conditions on lateral-torsional buckling of the pre-stressed beams are investigated, with a specific emphasis on the effects of increasing initial tension.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Teng Ma, Jinxiang Wang, Liangtao Liu, Heng Li, Kui Tang, Yangchen Gu, Yifan Zhang
Summary: The structural response of water-back plate under the combined action of shock wave and bubble loads at water depths of 1-300 m was numerically investigated using an arbitrary Lagrange-Euler method. The accuracy of the numerical model was validated by comparing with experimental and theoretical results. The influences of water depth and length-to-diameter ratio of the charge on the combined damage effect were analyzed. The results show that as water depth increases, the plastic deformation energy of the water-back plate decreases, and the permanent deformation mode changes from convex to concave. When the charge has a large length-to-diameter ratio, the plastic deformation energy of the radial plate is higher than that of the axial plate, and the difference decreases with increasing water depth. Increasing the length-to-diameter ratio enhances the combined damage effect in the radial direction in deep-water environments.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Qiu-Yun Li, Ben Young
Summary: This paper investigates the flexural performance of CFS zed section members bent about the neutral axis parallel to the flanges through experimental and numerical analysis. The results show that the current direct strength method generally provides conservative predictions for the flexural strength of unstiffened zed section members, but slightly unconservative design for edge-stiffened zed section beams. The nominal flexural strengths of zed section members with edge stiffeners were found to be underestimated by 17% to 21% on average. Modified DSM formulae are recommended for the design of CFS zed section beams.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Weinan Gao, Bo Song, Xueyan Chen, Guochang Lin, Huifeng Tan
Summary: This paper presents a precise method for predicting deformation in large-scale inflatable structures, utilizing finite element modeling and laser scanning technique. The study shows a good agreement between the predictive model and non-contact measurement results.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Fei Gao, Zongyi Wang, Rui Zhu, Zhenming Chen, Quanxi Ye, Yaqi Duan, Yunlong Jia, Qin Zhang
Summary: This research investigates the mechanical properties of high-strength ring groove rivet assemblies and the load resistances of riveted T-stubs. Experimental tests reveal that Grade 10.9 rivets have higher yield strength and strain, and lower ultimate strain, making them suitable for high-strength ring groove rivet connections. Increasing the rivet diameter benefits the T-stubs, while increasing the flange thickness is not always advantageous. The Eurocode 3 method is not suitable for T-stubs connected through ring groove rivets, while the Demonceau method is conservative.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Shangchun Jiang, Liangfeng Sun, Haifei Zhan, Zhuoqun Zheng, Xijian Peng, Chaofeng Lue
Summary: This study investigates the bending behavior of two-dimensional nanomaterials, diamane and its analogous structure TBGIB, through atomistic simulations. It reveals that diamane experiences structural failure under bending, while TBGIB bends elastically before undergoing structural failure. The study provides valuable insights for the application of these materials in flexible electronics.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Qiang Zhang, Jianian Wen, Qiang Han, Hanqing Zhuge, Yulong Zhou
Summary: In this study, the mechanical properties of Q690 steel H-section columns under bi-directional cyclic loads are investigated, considering the time-varying characteristics of corrosion. A refined finite element (FE) model is built to analyze the degradation of mechanical property and failure mechanisms of steel columns with different design parameters during the whole life-cycle. The study proposes a quantitative calculation method for the ultimate resistance and damage index of steel columns, taking into account the ageing effects. The findings emphasize the importance of considering the ageing effects of steel columns in seismic design.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Yuda Hu, Qi Zhou, Tao Yang
Summary: The magneto-thermo-elastic coupled free vibration of functionally graded materials cylindrical shell is investigated in this study. The vibration equation in multi-physical field is established and solved using the Hamilton principle and the multi-scale method. The numerical results show that the natural frequency is influenced by various factors such as volume fraction index, initial amplitude, temperature, and magnetic induction intensity.
THIN-WALLED STRUCTURES
(2024)