Article
Engineering, Civil
Wanqi Zhao, Tao Liu, Liming Chen, Yongguang Guo, Xin Pan, Shaowei Zhu, Weiguo Li
Summary: Uniform/gradient lattice cylindrical structures and hybrid uniform/gradient lattice cylindrical structures were designed and tested for their axial crushing behaviors. The influence of density gradient and hybrid effect on deformation mode, loading capacity, and energy absorption was systematically analyzed. The gradient design achieved regulation and control of structural deformation, while the hybrid design overcame catastrophic failure and improved energy absorption. The hybrid effect in HULCS/HGLCS resulted in a significant increase in energy absorption compared to individual components.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
Wenhao Wang, Xie Chen, Hualin Fan
Summary: Carbon fiber reinforced polymer lattice structures are lightweight yet strong and stiff. The use of modular and foam filling techniques can greatly enhance the energy absorption performance of the lattice structures, while also increasing their compression strength.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Jianhua Dong, Hualin Fan
Summary: The study focused on buckling-oriented hexagonal lattice structures (BOHLS) made of AISI 316 L for energy absorption in engineering. Quasi-static compression experiments and numerical investigations were conducted to compare the performance of BOHLS and hexagonal lattice structure (HLS) in different compression directions. The results showed that BOHLS had better performance in terms of specific energy absorption and mean crushing force under quasi-static in-plane compression, while HLS outperformed BOHLS in quasi-static out-of-plane compression.
MECHANICS OF MATERIALS
(2022)
Article
Mechanics
Mincen Wan, Dayong Hu, Hongbo Zhang, Benlou Pi, Xubin Ye
Summary: This study investigates the crashworthiness performance of four types of tubular lattice structures based on triply periodic minimal surfaces (TPMS-T) and finds that they outperform traditional tubes. The effects of relative density, density gradient, and hybrid design on crashworthiness are analyzed, and it is found that they can improve crashworthiness performance.
COMPOSITE STRUCTURES
(2024)
Article
Engineering, Civil
Sihang Xiao, Qi Li, Heran Jia, Fei Wang, Jingjing Gao, Wenliang Lv, Junfeng Qi, Shengyu Duan, Panding Wang, Hongshuai Lei
Summary: This study introduces a novel graded lattice structure with tunable deformation and high energy absorption capability. The results expand the design possibilities of functionally graded lattice structures and underscore their significance in practical applications.
THIN-WALLED STRUCTURES
(2023)
Article
Mechanics
Shuguang Yao, Yili Zhou, Zhixiang Li, Peng Zhang, Yuehao Cao, Ping Xu
Summary: The study designed a square frustum lattice structure (SFLS) using a stable flat-topped pyramid as the structural cell and analyzed its energy absorption characteristics through experiments and simulations. It was found that the parameterization of SFLS influenced its energy absorption performance, and the modified theoretical prediction model accurately predicted the structure's performance.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Junxian Zhou, Chuang Dong, Zhaoyi Wang, Bingzhi Chen, Ruixian Qin, Xu Niu
Summary: This paper investigates the mechanical performance of gradient-thickness multicellular tubes and demonstrates their advantage in energy-absorption ability. The study finds that increasing cell density and thickness gradient coefficient has a positive effect on energy absorption, but excessively high parameter values can lead to structural deformation. Reasonable parameter matching is crucial.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
Ngoc San Ha, Thong M. Pham, Nhi H. Vo, Hong Hao
Summary: This study investigates the dynamic response of minimal surface primitive structures under different crushing speeds and explores the effects of parameters such as crushing speed, relative density, and strain rate on crushing stress. The results show that the plateau stress at the loading location is highly sensitive to the crushing speed, while the plateau stress at the stationary side follows the opposite trend. Different deformation modes are observed for the primitive structures, depending on the crushing speed and relative density. The energy absorption efficiency does not have a clear relationship with relative density. Empirical models are developed to predict plateau stress and show good agreement with numerical results.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Feng Jiang, Shu Yang, Yu Zhang, Chang Qi, Shang Chen
Summary: In this study, a novel graded re-entrant circular auxetic honeycomb structure was proposed and fabricated using a low-cost method. The crushing behaviors of different designs of the honeycomb structure were investigated, and the results showed that the gradient design can control the deformation modes and improve the energy absorption capacity. Under dynamic impacts, the honeycomb structure with a negative gradient design exhibited better performance and negative Poisson's ratio behavior. This study provides new insights for the fabrication and design of auxetic metamaterials.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Aerospace
Qiusong Yang, Zhejian Li, Wensu Chen, Hong Hao
Summary: The effects of geometric parameters on the energy-absorption capacity of a truncated square pyramid (TSP) unit cell were investigated, and a novel re-entrant TSP unit cell was proposed to improve the performance. The study analyzed the structural response and damage mode of TSP unit cells with different geometric configurations, and evaluated the performance based on criteria such as peak crushing force, average crushing force, uniformity ratio, and energy absorption. The results showed that the corner opening angle had the greatest influence on energy absorption, and the addition of a re-entrant edge reduced the peak crushing force and resulted in a more uniform crushing process. The study also found that the crushing speed affected the peak crushing force significantly for unit cells with large edge length, but had less impact on unit cells with small open-top length. The findings provide guidance for designing TSP unit cells with high energy absorption against dynamic loads.
JOURNAL OF AEROSPACE ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Peng Wang, Fan Yang, Guoxing Lu, Yijie Bian, Siyuan Zhang, Bailin Zheng, Hualin Fan
Summary: The modified body-centered cubic (MBCC) lattice structure, inspired by the deep-sea glass sponge, has been designed and optimized to have better energy absorption capacity compared to conventional structures. Extensive finite element simulations and experimental tests have validated its performance. Results show that the MBCC lattice exhibits higher energy absorption capacity than previous bio-inspired and conventional structures, approaching that of titanium alloy foams.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Civil
Siyuan Zhang, Fan Yang, Puhao Li, Yijie Bian, Jinfeng Zhao, Hualin Fan
Summary: The study introduces a novel topologically gradient lattice structure different from traditional uniform or gradient density lattice structures. Experimental and numerical results show that the topology gradient can significantly enhance the stiffness and energy absorption capacity of the structure. Furthermore, the mechanical properties of the structure are sensitive to the gradient direction.
ENGINEERING STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Xiaodong Ma, Ning Zhang, Xiaogeng Tian
Summary: In this study, a novel hybrid lattice cell combining octet cell and body-centered cube cell was proposed, and its energy-absorption characteristics and deformation mechanisms were investigated through quasi-static compression experiments and finite element simulations. The effects of relative density, cell configuration, and component ratio were also explored. The results showed that the hybrid lattice improves compression modulus and yield strength by 10% and 16% respectively, and has 20% higher energy-absorption compared to conventional lattices. Additionally, the hybrid lattice can significantly alleviate stress softening and increase energy absorption by increasing the volume ratio of body-centered cubic. Under dynamic loading, the hybrid lattice structures displayed outstanding normalized yield strength, surpassing majority of porous structures. Inspired by the precipitation hardening mechanisms used in metallurgy, two dual-phase lattices were developed, showing three stages of plateau stress in quasi-static compression.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Chemistry, Physical
Xinyu Li, Jiajian Ye, Yuanyuan Ding, Guoyi Wu
Summary: This paper investigates the mechanical behavior of the dual-density hybrid lattice structure under dynamic compression and the enhancement mechanism of the reinforcement phase. The results show that the quasi-static-specific energy absorption of the dual-density hybrid lattice structure is significantly higher than that of the single-density Octet lattice, and the effective specific energy absorption of the dual-density hybrid lattice structure increases with the increase in compression strain rate. The deformation mechanism of the dual-density hybrid lattice changes from an inclined deformation band to a horizontal deformation band as the strain rate changes from 10(-3) s(-1) to 100 s(-1).
Article
Engineering, Civil
Hang Zhang, Gaojian Lin, Weifu Sun
Summary: A novel corrugated 3D lattice metamaterial with stable mechanical response and deformation behavior was constructed through geometric tailoring. The effects of cell number, scaling factor, and gradient design methods on the energy absorption performance were systematically studied. The results show that the proposed corrugated lattice has stable mechanical response and ideal energy absorption performance due to its stable deformation behavior.
THIN-WALLED STRUCTURES
(2023)
Article
Spectroscopy
Qiyun Xie, Lihuan Xu, Chengxiang Hu, Limin Chen, Jiajin Zheng, Wei Wang, Handi Yin, Guofeng Cheng, Xiaoqian Ai
Summary: Understanding the phonon-phonon anharmonic effect in HfTe5 is crucial for both scientific interest and potential thermoelectric applications. Raman spectroscopy was used to study the phonon anharmonicity by measuring the temperature dependence of phonon mode softening and broadening in HfTe5 single crystals. Results showed that four phonon anharmonic effects are significant, leading to low thermal conductivity in HfTe5 crystals due to reduced phonon lifetime from enhanced phonon scattering.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Article
Nanoscience & Nanotechnology
Douglas K. Pleskow, Lei Zhang, Vladimir Turzhitsky, Mark F. Coughlan, Umar Khan, Xuejun Zhang, Conor J. Sheil, Maria Glyavina, Liming Chen, Shweta Shinagare, Yuri N. Zakharov, Edward Vitkin, Irving Itzkan, Lev T. Perelman, Le Qiu
Summary: The novel coherent confocal light scattering and absorption spectroscopic microscopy enables high-resolution imaging of structures in live cells, down to 10 nm spatial scales, and can sense differences in cancer aggressiveness in live cells and identify cancer grades in tumor tissues without labels.
Article
Pharmacology & Pharmacy
Daniel Rizzolo, Bo Kong, Stephanie Piekos, Liming Chen, Xiaobo Zhong, Jie Lu, Jian Shi, Hao-jie Zhu, Qian Yang, Albert Li, Linhao Li, Hongbing Wang, Anna Siemiatkowska, Celine Park, Leonid Kagan, Grace L. Guo
Summary: Fibroblast growth factors 15 and 19 are important in maintaining bile acid homeostasis, and are currently being tested as potential treatments for certain liver diseases. This study found that long-term elevations of these growth factors can lead to increased expression of drug metabolizing enzymes, affecting drug metabolism and pharmacokinetics. The overexpression of Fgf15 was also found to cause a switch in the expression pattern of these enzymes in male mice, similar to the pattern observed in female mice. This change was associated with differences in growth hormone secretion and STAT5 signaling.
DRUG METABOLISM AND DISPOSITION
(2022)
Review
Cell Biology
Mehrdad Izadirad, Zoufang Huang, Farideh Jafari, Amir Ali Hamidieh, Ahmad Gharehbaghian, Yi-Dong Li, Leila Jafari, Zhe-Sheng Chen
Summary: Despite their small size, extracellular vesicles (EVs) play a significant role in the pathogenesis of acute leukemia, especially as carriers of important molecules like miRNA. Research has shown a growing interest in the potential prognostic value and role of leukemia-derived EVs in clinical settings.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Chunhong Mo, Zhao Wang, Jianying Yang, Yiqiang Ouyang, Qian Mo, Shuting Li, Ping He, Limin Chen, Xinchun Li
Summary: This study presents a facile design and construction of a nanodrug system integrating targeted drug delivery and synergistic chemo-photothermal antitumor activity. The prepared nanocarrier using MoS2 nanosheets modified by alpha(v)beta(3) integrin binding peptide (RGD) and thiolated doxorubicin (DOX) showed favorable stability, biocompatibility, and photothermal conversion efficiency. The nanodrug exhibited targeted delivery to Hela cells and significantly reduced cardiotoxicity compared to free DOX, demonstrating powerful photothermal induced tumor-killing efficacy.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Lei Zhang, Yidong Li, Chaohua Hu, Yangmin Chen, Zhuo Chen, Zhe-Sheng Chen, Jian-Ye Zhang, Shuo Fang
Summary: This study reveals CDK6-PI3K as a novel target signaling axis to reverse ABCB1-mediated multidrug resistance for the first time in cancers. Deficiency of CDK6 leads to downregulation of ABCB1 expression and reversal of multidrug resistance.
Article
Pharmacology & Pharmacy
Lei Zhang, Biwei Ye, Yunfeng Lin, Yi-Dong Li, Jing-Quan Wang, Zhuo Chen, Feng-Feng Ping, Zhe-Sheng Chen
Summary: In this study, the researchers investigated the effect of the CDK4/6 inhibitor, ribociclib, on multidrug resistance (MDR) mediated by P-glycoprotein (P-gp) in human epidermoid carcinoma cells. They found that ribociclib increased the efficacy of a P-gp substrate drug, colchicine, by down-regulating the expression of P-gp and increasing its ATPase activity. Docking studies suggested that ribociclib interacted with the drug-substrate binding site of P-gp. Additionally, ribociclib inhibited the drug efflux activity of P-gp, leading to increased intracellular accumulation of doxorubicin. These findings suggest that ribociclib may be a potential agent for combined therapy in cancers with P-gp-mediated MDR.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Materials Science, Composites
Hang Zou, Yong Chen, Xiaodong Zhang, Conggang Ning, Ruqing Pan, Youkun Yang, Junshuang Zhang, Bing Du
Summary: This article mainly studies the effects of surface treatment process and material combination on the mechanical properties of glass fiber/polypropylene (PP)/stainless steel mesh (SSM) composite laminates. It is shown that the adhesion force of the phosphating SSM sample is 1.73 times that of the etched sample, and the bonding effect with organic substances is relatively better. The laminate with the structure of unetched SSM + maleic anhydride grafted polypropylene + aminosilane glass fiber fabric had the best tensile load. The etched and phosphatized SSM enhanced the interface adhesive effect with PP-g-MAH, thereby improving the overall structural strength of the laminate.
POLYMER COMPOSITES
(2023)
Article
Multidisciplinary Sciences
Douglas K. Pleskow, Mandeep S. Sawhney, Paul K. Upputuri, Tyler M. Berzin, Mark F. Coughlan, Umar Khan, Maria Glyavina, Xuejun Zhang, Liming Chen, Conor J. Sheil, Jonah M. Cohen, Edward Vitkin, Yuri N. Zakharov, Irving Itzkan, Lei Zhang, Le Qiu, Lev T. Perelman
Summary: Bile duct cancer is a common type of liver cancer, often diagnosed in late stages resulting in poor survival rates. A reliable technique for detecting pre-cancerous changes in the bile duct is urgently needed. This study presents an endoscopic light scattering technique that can accurately evaluate the malignant potential of the bile duct. The technique showed high accuracy in detecting malignant transformation in a pilot study, indicating its potential for non-invasive in vivo identification of biliary duct pre-cancer.
NATURE COMMUNICATIONS
(2023)
Article
Integrative & Complementary Medicine
Juntao Li, Yue Wu, Xinxin Yu, Xinyu Zheng, Jiechen Xian, Senjie Li, Wanyin Shi, Yun Tang, Zhe-Sheng Chen, Guixia Liu, Shen Yao, Jian Xu, Xiangwei Zheng
Summary: This study revealed for the first time the pharmacodynamic mechanism of 8-isopentenyl flavonoids in Epimedium sagittatum Maxim. for treating erectile dysfunction (ED), and identified several compounds with significant inhibitory activities and the ability to activate cellular signaling pathways.
Review
Chemistry, Multidisciplinary
Bing Du, Xinyu Zhou, Qichang Li, Jingwei Liu, Yuxi Liu, Xianjun Zeng, Xiangrong Cheng, Hanjie Hu
Summary: This paper reviews the current research progress of surface treatment methods for improving the interfacial adhesion of stainless steel and resin, and summarizes the methods to improve the adhesion.
Review
Chemistry, Multidisciplinary
Yanyan Wang, Limin Chen, Siyang Li, Luhua Lai
Summary: Biomolecular condensates, formed as membraneless organelles, have diverse biological functions and are associated with diseases. Understanding the roles of intrinsically disordered proteins in their formation and regulation can guide the design of novel drugs.
PROGRESS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yuhai Sun, Junliang Wu, Yaolin Wang, Jingjing Li, Ni Wang, Jonathan Harding, Shengpeng Mo, Limin Chen, Peirong Chen, Mingli Fu, Daiqi Ye, Jun Huang, Xin Tu
Summary: The reaction pathways of plasma-enhanced catalytic CO2 hydrogenation were investigated in this study. Placing Pd/ZnO in a DBD reactor under plasma environment significantly improved the conversion of CO2 and the yield of CO. In the Plasma + ZnO system, CO2 splitting played an important role in the conversion of CO2.
Meeting Abstract
Medicine, Research & Experimental
Giuseppe Pettinato, Mark F. Coughlan, Xuejun Zhang, Liming Chen, Maria Glyavina, Yuri N. Zakharov, Lei Zhang, Le Qiu, Robert A. Fisher, Lev T. Perelman
XENOTRANSPLANTATION
(2021)
Article
Medicine, Research & Experimental
Wei Chong, Liang Shang, Jin Liu, Zhen Fang, Fengying Du, Hao Wu, Yang Liu, Zhe Wang, Yang Chen, Shengtao Jia, Liming Chen, Leping Li, Hao Chen
Summary: Recent studies have shown that m(6)A modification is significantly associated with TME diversity, and different m(6)A modification patterns in colon cancer are correlated with distinct clinical outcomes and biological pathways.
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)