Article
Mechanics
Subrat Kumar Behera, Deepak Kumar, Somnath Sarangi
Summary: The study presents a rheological model for dielectric elastomeric materials, successfully capturing the electro-viscoelastic behavior with consideration of viscosity and electric field effects. The model, based on micro mechanics, shows good agreement with experimental results while using minimal material parameters.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2021)
Article
Mechanics
Marzieh Bahreman, Nitesh Arora, Hossein Darijani, Stephan Rudykh
Summary: This paper investigates the stability of microstructured dielectric elastomer plates under electromechanical deformations and analyzes the influence of material composition and phase properties on the stability of the plates.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Mechanics
Sugeng Waluyo
Summary: This paper proposes an electro-viscoelastic constitutive model based on non-constant relaxation time. The model is derived from the well-known generalized Maxwell model with stress-stretch-dependent relaxation time. Comparison with experimental results shows that the proposed model effectively captures dielectric elastomer viscoelastic behaviors under time- and rate-dependent electric loadings.
Article
Biology
Khanish Gupta, Kusum Meena
Summary: This study analyzed a novel double arrowhead auxetic stent to overcome the limitations of traditional stents. Through parameter analysis and finite element analysis, the optimal design factors of the stent structure were determined and compared with a commercial stent. The results showed that the auxetic stent had superior mechanical properties, making it a promising candidate for future stent designs.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Mechanics
Kais Mrabet, Emine Zaouali, Fehmi Najar
Summary: Dielectric elastomers are widely used in various applications such as artificial muscles, sensors, and energy harvesters. This study analyzes a circular DE membrane under mechanical and electrical excitations to seek internal resonances that can enhance its performance for future applications. The dynamic solution of the device under different prestretch and electrical conditions is obtained using analytical and numerical approaches.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Instruments & Instrumentation
Yuchen Zuo, Junshi Zhang, Lei Liu, Jihong Zhu, Weihong Zhang
Summary: In this work, a method is proposed to achieve tunable direction and magnitude of electromechanical deformation of DE membranes by adjusting the unequal-biaxial prestretch ratio and rotation angle. The designed anisotropic DEA enables versatile electromechanical actuation in both the planar 2D and the spatial 3D structures.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Civil
Jinlin Liu, Wanchun Yang, Jiayi Liu, Jingxi Liu, Wei Huang
Summary: The foam-filled composite double-arrow auxetic structures were obtained by using the mold hot pressing method, bonding technology and stirring foaming process. Ballistic impact tests were conducted to analyze the effect of foam filling on the ballistic impact response of the structures. The results showed that the foam-filled structures had increased ballistic limit velocity and improved energy absorption compared to the unfilled structures.
THIN-WALLED STRUCTURES
(2023)
Article
Chemistry, Physical
Konrad Katzer, Anas Kanan, Sascha Pfeil, Henriette Grellmann, Gerald Gerlach, Michael Kaliske, Chokri Cherif, Martina Zimmermann
Summary: This paper aims to characterize the thermo-electro-mechanical behavior of PDMS-based dielectric elastomer actuators (DEA). An experimental setup was used to evaluate the behavior of PDMS-based DEA under different mechanical loading rates, ambient temperatures, and applied electric voltages. The influence of the solid electrode on the dielectric layer's surface was also investigated. This study focuses on the production of DEA, the experimental setup, and the interpretation and evaluation of mechanical hysteresis loops obtained. Finite element modeling was used to simulate the passive and electro-mechanically active response of the material. A comparison between experimental and simulation results was conducted.
Article
Chemistry, Multidisciplinary
Hongbo Fu, Yong Jiang, Jian Lv, Yao Huang, Zipeng Gai, Ying Liu, Pooi See Lee, Hong Xu, Daming Wu
Summary: This study presents a reusable multilayer dielectric elastomer actuators (DEAs) with detachable and reconfigurable structure. Scalable compliant electrodes were prepared using continuous spatial confining forced network assembly (CSNA) method, and combined with vacuum lamination (VL) approach to achieve good attachability and detachability with VHB dielectric elastomer. The fabricated electrodes can work continuously over 10,000 cycles at 40% strained stretching, and maintain a smooth surface for constructing multilayer DEAs. Additionally, the electrodes can also be recovered and reused for building new actuators due to the detachable configuration. A detachable multilayer spring roll DEA was demonstrated as a lower limb assistive device, achieving approximately 3.1 degrees of flexion and extension movement of knee models under a voltage of 7 kV.
Article
Engineering, Mechanical
Yifu Chen, Guozheng Kang, Yuhang Hu, Jianghong Yuan, Tiefeng Li, Shaoxing Qu
Summary: Dielectric elastomers (DEs) often experience fatigue failure during electro-mechanical cyclic loading, with the fatigue life significantly influenced by stress levels. A fatigue failure model was developed to predict the low-cycle electro-mechanical fatigue life of DEs, guiding the safe design and evaluation of DE-based devices.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Electrical & Electronic
Zhengkai Zhang, Qingguo Wen, Pengju Li, Hong Hu
Summary: A non-contact displacement measurement method based on the auxetic structure was developed in this study. The proposed method showed good sensitivity and potential applicability for measuring and monitoring structural parts.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Civil
Wanchun Yang, Ruxu Huang, Jiayi Liu, Jingxi Liu, Wei Huang
Summary: A novel composite double-arrow auxetic structure was designed and fabricated, and its anti-penetration performance was studied using experimental and numerical simulation methods. The results of the experiments were consistent with the simulation results, validating the effectiveness of the auxetic structure.
THIN-WALLED STRUCTURES
(2022)
Article
Chemistry, Analytical
Qingguo Wen, Pengju Li, Zhengkai Zhang, Hong Hu
Summary: This research paper introduces an innovative technique for measuring displacement using auxetic tubular structure (ATS). The proposed method converts the variation in light transmission into a corresponding variation in output voltage by capitalizing on the relationship between the elastic deformation-induced change in transmittance of the ATS and the output current of the solar cell. The experimental results demonstrate the effectiveness and feasibility of the proposed method, showing a favorable linear relationship between the input and output of the measurement system with an acceptable sensitivity, repeatability, and reliability.
Article
Chemistry, Multidisciplinary
Songwen Jiang, Chao Tang, Xuguang Dong, Xin-Jun Liu, Huichan Zhao
Summary: Recent developments in small and soft pumps have been driven by the increasing demand for pumps that can conform to irregular or deformable bodies. A pocket-sized pump with a tubular diaphragm made of multilayered silicone dielectric elastomer actuators, miniature check valves, and an outer shell is proposed in this work. The pump exhibits high flexibility, compactness, and dynamic performance, making it a potential candidate for driving small robots and biomedical devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
J. Neu, S. Croce, T. Willian, J. Hubertus, G. Schultes, S. Seelecke, G. Rizzello
Summary: In this work, the spatial electro-mechanical interactions in a 1-by-3 array of silicone DEs are systematically characterized. The study shows strong electro-mechanical coupling effects among the different array elements, which depend on various parameters and provide essential information for array actuator design. The results also indicate the presence of coupling effects in the DE capacitive response, which can be utilized for advanced self-sensing strategies.
EXPERIMENTAL MECHANICS
(2023)
Article
Engineering, Mechanical
Tao Wang, Liangmo Wang, Yuanlong Wang
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2017)
Article
Engineering, Mechanical
Guan Zhou, Wanzhong Zhao, Zheng-Dong Ma, Chunyan Wang, Yuanlong Wang
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2018)
Article
Computer Science, Interdisciplinary Applications
Yuanlong Wang, Wanzhong Zhao, Guan Zhou, Qiang Gao, Chunyan Wang
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2018)
Article
Computer Science, Interdisciplinary Applications
Wang Yuanlong, Zhao Wanzhong, Zhou Guan, Gao Qiang, Wang Chunyan
ADVANCES IN ENGINEERING SOFTWARE
(2018)
Article
Engineering, Multidisciplinary
ChunYan Wang, WeiWei Wang, WanZhong Zhao, Yuanlong Wang, Guan Zhou
COMPOSITES PART B-ENGINEERING
(2018)
Article
Engineering, Mechanical
Yuanlong Wang, Wanzhong Zhao, Guan Zhou, Chunyan Wang
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2018)
Article
Engineering, Mechanical
ChunYan Wang, Yan Li, WanZhong Zhao, SongChun Zou, Guan Zhou, YuanLong Wang
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2018)
Article
Engineering, Multidisciplinary
Wang YuanLong, Zhao WanZhong, Zhou Guan, Wang ChunYan, Gao Qiang
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2018)
Article
Computer Science, Interdisciplinary Applications
ChunYan Wang, SongChun Zou, WanZhong Zhao, YuanLong Wang, Guan Zhou
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2018)
Article
Materials Science, Multidisciplinary
Qiang Gao, Liangmo Wang, Ze Zhou, Z. D. Ma, Chenzhi Wang, Yuanlong Wang
MATERIALS & DESIGN
(2018)
Article
Instruments & Instrumentation
Yuanlong Wang, Wanzhong Zhao, Huaming Wang, Zhi Liu
SMART MATERIALS AND STRUCTURES
(2019)
Article
Thermodynamics
Yuanlong Wang, Yi Yu, Zhiqiang Jing, Chunyan Wang, Guan Zhou, Wanzhong Zhao
Summary: A lithium-ion battery thermal management system using forced air cooling with open-cell aluminum foam was proposed. The thermal interaction between battery cells becomes more obvious after using aluminum foam, which can significantly reduce battery temperature rise. However, aluminum foam may cause flow resistance and pressure loss, leading to uneven temperature distribution on the battery surface.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Electrical & Electronic
Yuanlong Wang, Zhiqiang Jing, Zijie Ji, Liangguo Wang, Guan Zhou, Qiang Gao, Wanzhong Zhao, Shijuan Dai
Summary: This paper presents a new multi-lane detection method that utilizes an object detection neural network to remove vehicles from road images and accurately extract lane line features. The method utilizes binarization, object detection, and clustering to perform lane detection and demonstrates good real-time performance and robustness in various complex scenarios.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Mechanical
Chaoliang Li, Yuanlong Wang, Xiongjie Chen, Yi Yu, Guan Zhou, Chunyan Wang, Wanzhong Zhao
Summary: This paper proposes a highly adaptive Elman neural network (Elman-NN) for accurate temperature prediction of lithium-ion batteries in a metal foam aluminum thermal management system. The Elman-NN is optimized using the PSO algorithm to improve prediction accuracy. Compared to the original Elman-NN, the hybrid PSO-Elman-NN model achieves significant reduction in MSE and MAE values and demonstrates improved prediction accuracy. The proposed model shows excellent compatibility and accuracy in battery temperature prediction.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2023)