- 作 者: ( "daining fang" OR "dai-ning fang" )
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Porous-Solid Metaconverters for Broadband Underwater Sound Absorption and InsulationPhysical Review Applied (IF 4.931) Pub Date : 2023-04-25 ,DOI:10.1103/physrevapplied.19.044074Hao-Wen Dong, Sheng-Dong Zhao, Ping Xiang, Bing Wang, Chuanzeng Zhang, Li Cheng, Yue-Sheng Wang, Daining FangExisting solid composite structures composed of several viscoelastic materials and metals mainly exploit diverse resonances, damping, and scattering to realize underwater acoustic wave functionalities. However, low-frequency broadband underwater sound absorption and insulation are still hard to capture with an acoustic coating possessing subwavelength thickness and lightweight nature simultaneously ...
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A modified single edge V-notched beam method for evaluating surface fracture toughness of thermal barrier coatingsApplied Mathematics and Mechanics Pub Date : 2023-04-23 ,DOI:10.1007/s10483-023-3001-6Haoran Bai, Zhanyu Wang, Sangyu Luo, Zhaoliang Qu, Daining FangThe surface fracture toughness is an important mechanical parameter for studying the failure behavior of air plasma sprayed (APS) thermal barrier coatings (TBCs). As APS TBCs are typical multilayer porous ceramic materials, the direct applications of the traditional single edge notched beam (SENB) method that ignores those typical structural characters may cause errors. To measure the surface fracture ...
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3D-Printed Micro/Nano-Scaled Mechanical Metamaterials: Fundamentals, Technologies, Progress, Applications, and ChallengesSmall (IF 15.153) Pub Date : 2023-04-07 ,DOI:10.1002/smll.202206391Ruyue Su, Jingyi Chen, Xueqin Zhang, Wenqing Wang, Ying Li, Rujie He, Daining FangMicro/nano-scaled mechanical metamaterials have attracted extensive attention in various fields attributed to their superior properties benefiting from their rationally designed micro/nano-structures. As one of the most advanced technologies in the 21st century, additive manufacturing (3D printing) opens an easier and faster path for fabricating micro/nano-scaled mechanical metamaterials with complex ...
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On accurate characterization of interfacial morphology and damage evolution of thermoplastic composite welded joints: A microscale study via in-situ micro-CTComposites Science and Technology (IF 9.879) Pub Date : 2023-03-21 ,DOI:10.1016/j.compscitech.2023.110004Quanyue Zhao, Zhuqing Gao, Hongen Wang, Hantai Wu, Xinyu Chen, Zhaoliang Qu, Tian Zhao, Daining FangThermoplastic composites are regarded as a potential alternative to their thermoset counterparts in aircraft industries owing to their cost-effective manufacturing process and weldability. However, one of the most significant limitations of the currently used evaluation methods for the welded joints is that they are mostly destructive, which makes the loss of information on the initial features of ...
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A constitutive model of liquid crystal elastomers with loading-history dependenceJournal of the Mechanics and Physics of Solids (IF 5.582) Pub Date : 2023-03-12 ,DOI:10.1016/j.jmps.2023.105258Jun Wu, Yue Xiao, Yihui Zhang, Daining FangLiquid crystal elastomers (LCEs) are a class of active polymers of increasing interest, because of their excellent actuation performances. To quantify the actuation performances and understand the thermomechanical behavior, many theoretical models were developed, mainly based on the free energy framework with uniaxial order tensor, which, however, cannot well capture the biaxial liquid crystal alignment ...
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Quantificational 4D visualization and mechanism analysis of inhomogeneous electrolyte wettingeTransportation (IF 13.661) Pub Date : 2023-02-27 ,DOI:10.1016/j.etran.2023.100232Hao-Sen Chen, Shuangquan Yang, Wei-Li Song, Le Yang, Xiangfei Guo, Xiao-Guang Yang, Na Li, Daining FangThe inhomogeneous electrolyte distribution in lithium-ion batteries affects lithium-ion transfer, which attenuates battery performance and leads to thermal runaway. Moreover, real-time quantitative observations and an in-depth understanding of electrolyte wetting remain limited because of the harsh electrochemical environment. In this study, in-situ 4D X-ray computed tomography was used to monitor ...
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Inverse-designed single-phase elastic metasurfaces for underwater acoustic vortex beamsJournal of the Mechanics and Physics of Solids (IF 5.582) Pub Date : 2023-02-17 ,DOI:10.1016/j.jmps.2023.105247Xudong He, Hao-Wen Dong, Zhiwen Ren, Sheng-Dong Zhao, Kai Wang, Yuan Hu, Ping Xiang, Ying Li, Mingji Chen, Daining FangDuring the past decade, the passive metasurfaces enabling vortex beams carrying orbital angular momentum have drawn great interest in the fields of electromagnetic and acoustic wave. In the underwater environment, however, the elastic metasurface with a certain bandwidth is more difficult to be realized due to the strong fluid-solid interaction and rigorous impedance matching. To overcome this challenge ...
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Ultrabroadband and Multifunctional Achromatic Mikaelian Lens on an Elastic PlatePhysical Review Applied (IF 4.931) Pub Date : 2022-12-15 ,DOI:10.1103/physrevapplied.18.064047Jin Chen, Guangyuan Su, Shaohang Xu, Mingji Chen, Yongquan Liu, Daining Fang, Ji ZhouThe emergence and development of acoustic artificial materials stimulate a large number of applications for the manipulation of ultrasonic and elastic waves. Most of the reported metasurfaces and metamaterials only work effectively at a given frequency and target a fixed functionality. Reconfigurable designs may solve this problem, to a certain extent, but require the introduction of complex active ...
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An efficient and high-fidelity local multi-mesh finite volume method for heat transfer and fluid flow problems in metal additive manufacturingComputer Methods in Applied Mechanics and Engineering (IF 6.588) Pub Date : 2022-12-14 ,DOI:10.1016/j.cma.2022.115828Ming-Jian Li, Jiawei Chen, Yanping Lian, Feiyu Xiong, Daining FangThe multi-scale and nonlinear feature of additive manufacturing problems poses great challenges to numerical algorithms regarding computational efficiency and fidelity. In this work, we propose a novel local multi-mesh finite volume method for heat transfer and fluid flow problems in the additive manufacturing process. In this method, two sets of meshes (coarse base mesh and finer overlay mesh) are ...
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Microstructure and nanomechanical properties of plasma-sprayed nanostructured Yb2SiO5 environmental barrier coatingsJournal of the American Ceramic Society (IF 4.186) Pub Date : 2022-12-08 ,DOI:10.1111/jace.18933Tao Zheng, Baosheng Xu, Shun Wang, Donghui Guo, Feifei Zhou, You Wang, Daining FangIn this study, nanostructured and conventional Yb2SiO5 coatings were prepared by atmospheric plasma. The microstructure and nanomechanical properties of these coatings were compared before and after heat treatment. The results show that the nanostructured Yb2SiO5 coatings have a mono-modal distribution, and the conventional Yb2SiO5 coatings have a bimodal distribution. Both types of coatings had improved ...
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Multi-scale analysis of compressive behavior of 3D five-directional braided composites after thermal oxygen aging: Experimentally validated theoretical and numerical modelsEuropean Journal of Mechanics - A/Solids (IF 4.873) Pub Date : 2022-11-22 ,DOI:10.1016/j.euromechsol.2022.104885Hao Zhu, Meng Han, Xiang-bin Du, Dian-sen Li, Lei Jiang, Dai-ning FangThree-dimensional (3D) braided composites have been widely used in the aeronautics and astronautics industries, especially as components in hot-pressing conditions. However, its mechanical performances are specially affected under high temperatures. This work proposes to detect the influence of thermal oxygen aging on residual mechanical behaviors and failure mechanisms of 3D five-directional braided ...
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Fatigue behavior and failure of three-dimensional six-directional braided composites under tensionMaterials Letters (IF 3.574) Pub Date : 2022-11-18 ,DOI:10.1016/j.matlet.2022.133471Dian-sen Li, Wen-fen Han, Lei Jiang, Dai-ning FangCarbon/epoxy three-dimensional (3D) six-directional braided composites are fabricated and tensile fatigue behavior are reported. The results show that the composites have good fatigue properties and limit with small braiding angle. Fatigue life decreases with increasing the stress level. Dynamic modulus decreases and rate of stiffness degradation is also restricted by cycle number. Moreover, there ...
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Reconfigurable network structure with tunable multiple deformation modes: Mechanical designs, theoretical predictions, and experimental demonstrationsInternational Journal of Solids and Structures (IF 3.667) Pub Date : 2022-11-18 ,DOI:10.1016/j.ijsolstr.2022.112043Kai Zhang, Jinyu Ji, Yixing Huang, Wei-Li Song, Hao Wang, Li-Chen Wang, Xiaogang Guo, Daining FangReconfigurable network structure with tunable multiple deformation modes exhibits promising applications in functional electromagnetic devices, frequency-reconfigurable antennas, flexible electronic devices, and robots with multiple motion modes due to its capability to realize multiple working characteristics in one device or system. In most previous studies on reconfigurable network structures with ...
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Unit-cell geometry and mechanical properties of three-dimensional seven-directional braided compositesThin-Walled Structures (IF 5.881) Pub Date : 2022-11-16 ,DOI:10.1016/j.tws.2022.110299Dian-sen Li, Xue Yang, Hao Zhu, Lei Jiang, Dai-ning FangThree theoretical microstructural models were constructed based on manufacturing three-dimensional seven-directional (3D7d) braided preforms, and their relationships with braiding angles, fiber volume fractions, and yarn filling factor were investigated. The influences of braiding parameters, loading directions, and braiding structure on the performances of 3D7d braided composites were predicted in ...
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Lightweight quasi-layered elastic fibrous porous ceramics with high compressive stress and low thermal conductivityJournal of Materials Science & Technology (IF 10.319) Pub Date : 2022-11-15 ,DOI:10.1016/j.jmst.2022.09.047Ning Zhou, Baosheng Xu, Zhiliang Zhou, Lijie Qu, Yiguang Wang, Wenbo Han, Daining FangFibrous porous ceramics are attractive for use as thermal insulation materials. However, the intrinsic brittleness of rigid materials has remained challenging and severely restricts their applications. Here, we demonstrated a facile method for fabricating elastic fibrous porous ceramics (EFPCs) with high compressive strength and low thermal conductivity through ordinary press filtration and subsequent ...
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Interface and Defect Engineered Titanium-Base Oxide Heterostructures Synchronizing High-Rate and Ultrastable Sodium Storage (Adv. Energy Mater. 40/2022)Advanced Energy Materials (IF 29.698) Pub Date : 2022-10-27 ,DOI:10.1002/aenm.202270167Weijia Meng, Zhenzhen Dang, Diansen Li, Lei Jiang, Daining FangSodium-Ion Batteries ...
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Bifunctional Metamaterials Incorporating Unusual Geminations of Poisson’s Ratio and Coefficient of Thermal ExpansionACS Applied Materials & Interfaces (IF 10.383) Pub Date : 2022-10-25 ,DOI:10.1021/acsami.2c11702Zhengtong Han, Xiaoyujie Xiao, Jiaxin Chen, Kai Wei, Zhonggang Wang, Xujing Yang, Daining FangNatural materials overwhelmingly shrink laterally under stretching and expand upon heating. Through incorporating Poisson’s ratio and coefficient of thermal expansion (PR and CTE) in unusual geminations, such as positive PR and negative CTE, negative PR and positive CTE, and even zero PR and zero CTE, bifunctional metamaterials would generate attractive shape control capacity. However, reported bifunctional ...
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Stereolithographically 3D Printed SiC Metastructure for Ultrabroadband and High Temperature Microwave AbsorptionAdvanced Materials Technologies (IF 8.856) Pub Date : 2022-10-21 ,DOI:10.1002/admt.202201222Niping Zhou, Lu Zhang, Wenqing Wang, Xueqin Zhang, Keqiang Zhang, Mingji Chen, Yixing Huang, Rujie He, Daining FangBroadband microwave absorption is essential on the realms of electromagnetic compatibility and protection in civil application scenarios. However, coordination of material and structure is difficult without proper iterative design between material and structure resulting in insurmountable drawbacks of traditional microwave absorption medium operating under high temperature erosion. Herein, SiC metastructure ...
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All-dielectric ultra broadband MIMO Luneburg lens with sub-diffraction resolutionJournal of Physics D: Applied Physics (IF 3.409) Pub Date : 2022-10-20 ,DOI:10.1088/1361-6463/ac9983Xudong He, Jin Chen, Mingji Chen, Hongchen Chu, Yun Lai, Daining FangA 3D-printed ultra-broadband planar Luneburg lens composed of periodic gradient structures is proposed in this paper. Compared to the previous studies, the proposed lens has a pretty large operating frequency range, spanning from 5 to 22 GHz. The measured results of the near-field and far-field illustrate the feasibility and validity of this lens antenna. High efficiency achromatic sub-diffraction ...
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Failure mechanisms of fluted-core sandwich composite panels under uniaxial compressionComposite Structures (IF 6.603) Pub Date : 2022-10-14 ,DOI:10.1016/j.compstruct.2022.116317Xinyu Li, Haiyang Yang, Hao Zhang, Lianhua Yin, Zhong Zhang, Hongshuai Lei, Daining FangFluted-core sandwich composite structures are major load-bearing components used in launch vehicles. Herein, analytical models were proposed to investigate the failure mechanisms of fluted-core sandwich composite panels, including global buckling, local buckling, and material failure. Failure mode maps of fluted-core sandwich panels were constructed to analyze the intrinsic impact mechanism of geometric ...
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A novel mechanical behavior and failure mechanism analysis of 3D six-directional braided composites in liquid nitrogen subjected to compressionComposites Communications (IF 7.685) Pub Date : 2022-10-13 ,DOI:10.1016/j.coco.2022.101361Jing Ai, Dian-sen Li, Lei Jiang, Dai-ning FangThe influence of temperature, braiding angle, and braided structure on compressive mechanical properties and failure mechanisms of three-dimensional six-directional braided composites (3D6DBCs) were comprehensively analyzed. At low temperature, the out-of-plane and transverse strength increased by 16.2% and 50.1%, respectively. Interfacial damage caused a 25.3% decrease in longitudinal strength. The ...
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Stiffness and toughness of soft/stiff suture joints in biological compositesApplied Mathematics and Mechanics Pub Date : 2022-10-10 ,DOI:10.1007/s10483-022-2907-5Dong Wu, Yixing Huang, Ming Lei, Zeang Zhao, Xiaogang Guo, Daining Fang
Biological composites can overcome the conflict between strength and toughness to achieve unprecedented mechanical properties in engineering materials. The suture joint, as a kind of heterogeneous architecture widely existing in biological tissues, is crucial to connect dissimilar components and to attain a tradeoff of all-sided functional performances. Therefore, the suture joints have attracted many
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Internal damage evolution investigation of C/SiC composites using in-situ tensile X-ray computed tomography testing and digital volume correlation at 1000 °CComposites Part A: Applied Science and Manufacturing (IF 9.463) Pub Date : 2022-10-08 ,DOI:10.1016/j.compositesa.2022.107247Guohao Niu, Rongqi Zhu, Hongshuai Lei, Rubing Zhang, Panding Wang, Zhaoliang Qu, Daining FangCeramic matrix composites (CMCs) have lots of distributed manufacture-induced defects, which affect the mechanical response at high temperature heavily. In this paper, in-situ tensile experimental characterization using micro X-ray computed tomography (μCT) at room temperature and 1000 °C were performed to characterize the internal damage evolution process of 2D woven C/SiC composites. The 3D geometry ...
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Inverse design of shell-based mechanical metamaterial with customized loading curves based on machine learning and genetic algorithmComputer Methods in Applied Mechanics and Engineering (IF 6.588) Pub Date : 2022-10-07 ,DOI:10.1016/j.cma.2022.115571Yongzhen Wang, Qinglei Zeng, Jizhen Wang, Ying Li, Daining FangTriply periodic minimal surfaces (TPMSs) have attracted great attention due to their distinct advantages such as high strength and light weight compared to traditional lattice structures. Most previous works focus on forward prediction of the mechanical behaviors of TPMSs. Inverse design of the configurations based on customized loading curves would be of great value in engineering applications such ...
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Numerical investigation of tensile behavior of three-dimensional six-directional braided compositesInternational Journal of Mechanical Sciences (IF 6.772) Pub Date : 2022-10-07 ,DOI:10.1016/j.ijmecsci.2022.107815Xiang-bin Du, Dian-sen Li, Lei Jiang, Dai-ning FangBased on the mesostructure, a parametric finite element (FE) model of the 3D6d braided composites was developed considering the real cross-sectional shape of the yarn and its contact relationship. The 3D Hashin criterion and maximum stress criterion were used for failure determination and periodic displacement boundary conditions were imposed on the model to numerically simulate the initiation, propagation ...
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Synergistically program thermal expansional and mechanical performances in 3D metamaterials: Design-Architecture-PerformanceJournal of the Mechanics and Physics of Solids (IF 5.582) Pub Date : 2022-09-08 ,DOI:10.1016/j.jmps.2022.105064Kaiyu Wang, Jiaxin Chen, Zhengtong Han, Kai Wei, Xujing Yang, Zhonggang Wang, Daining FangMetamaterials, incorporating specific micro-architectures, could be purposely customized to export the programmability in both thermal expansional and mechanical performances, which are beneficial to obtain the thermal and structural stabilities in engineering devices. Here, by focusing on developing an original design strategy, multiple classes of metamaterials were devised and analyzed to integrate ...
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An effective method to enhance the underwater sound absorption performance by constructing a membrane-type acoustic metamaterialJournal of Physics D: Applied Physics (IF 3.409) Pub Date : 2022-09-06 ,DOI:10.1088/1361-6463/ac82d3Yingjian Sun, Xujin Yuan, Zhongkun Jin, Guangfu Hong, Mingji Chen, Mengjing Zhou, Weiduan Li, Daining FangBroadband sound absorption has consistently been a challenge in designing underwater sound absorption structure (USAS). Most research of USASs achieve broadband sound absorption through structural optimization, which curbs the freedom of designing, and commonly alights it at the expense of increased thickness. In this paper, a method is reported to broaden the frequency band of the USAS by embedding ...
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Multi-directional compression behaviors and failure mechanisms of 3D orthogonal woven composites: Parametric modeling and strength predictionMaterials & Design (IF 9.417) Pub Date : 2022-09-03 ,DOI:10.1016/j.matdes.2022.111108Xue Yang, Jing Ai, Hao Zhu, Xiang-bin Du, Dian-sen Li, Lei Jiang, Dai-ning Fang
Three-dimensional orthogonal woven composites (3DOWCs) are extensively adopted in various civil and military fields. Parametric finite element models of 3DOWCs were established based on the mesoscale method to predict the compression strength and progressive damage process. The effects of structural parameters and loading directions on the failure mechanisms were investigated. The predicted results
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Enhanced polarization and abnormal flexural deformation in bent freestanding perovskite oxidesNature Communications (IF 17.694) Pub Date : 2022-08-31 ,DOI:10.1038/s41467-022-32519-2Songhua Cai, Yingzhuo Lun, Dianxiang Ji, Peng Lv, Lu Han, Changqing Guo, Yipeng Zang, Si Gao, Yifan Wei, Min Gu, Chunchen Zhang, Zhengbin Gu, Xueyun Wang, Christopher Addiego, Daining Fang, Yuefeng Nie, Jiawang Hong, Peng Wang, Xiaoqing Pan
Recent realizations of ultrathin freestanding perovskite oxides offer a unique platform to probe novel properties in two-dimensional oxides. Here, we observe a giant flexoelectric response in freestanding BiFeO3 and SrTiO3 in their bent state arising from strain gradients up to 3.5 × 107 m−1, suggesting a promising approach for realizing ultra-large polarizations. Additionally, a substantial change
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Interface and Defect Engineered Titanium-Base Oxide Heterostructures Synchronizing High-Rate and Ultrastable Sodium StorageAdvanced Energy Materials (IF 29.698) Pub Date : 2022-08-25 ,DOI:10.1002/aenm.202201531Weijia Meng, Zhenzhen Dang, Diansen Li, Lei Jiang, Daining FangSodium-ion batteries are a promising large-scale electrochemical energy storage system because of their excellent cost advantage compared with lithium-ion batteries. However, the lack of high safety, low cost, and long service life anode materials hinder its actual development. Here, a sodium titanate/titanium dioxide/C (C-NTC) heterostructure composite is reported with oxygen vacancies (OVs) that ...
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