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| 1 | Three-dimensional analytical solution for a transversely isotropic functionally graded piezoelectric circular plate subject to a uniform electric potential difference显示文摘This paper studies the problem of a functionally graded piezoelectric circular plate subjected to a uniform electric potential difference between the upper and lower surfaces. By assuming the generalized displacements in appropriate forms,five differential equations governing the generalized displacement functions are derived from the equilibrium equations. These displacement functions are then obtained in an explicit form,which still involve four undetermined integral constants,through a step-by-step integration which properly incorporates the boundary conditions at the upper and lower surfaces. The boundary conditions at the cylindrical surface are then used to determine the integral constants. Hence,three-dimen sional analytical solutions for electrically loaded functionally graded piezoelectric circular plates with free or simply-supported edge are completely determined. These solutions can account for an arbitrary material variation along the thickness,and thus can be readily degenerated into those for a homogenous plate. A numerical example is finally given to show the validity of the analysis,and the effect of material inhomogeneity on the elastic and electric fields is discussed. | LI XiangYu DING HaoJiang CHEN WeiQiu | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，8： | 13 |
| 2 | Rolling texture and its effect on tensile property of a near-α titanium alloy Ti60 plate显示文摘Rolling texture and its effect on tensile properties of Ti60 alloy plates were investigated in the present study. The plates were β-rolled at 1070℃ and(α+β)-rolled at 980℃, using uni-directionally rolling(UDR) and cross-directionally rolling(CDR) processes, respectively.β-rolled plates exhibited weak textures, which were attributed to the dispersive orientations of secondary α during the β→α phase transformation. Strong deformation textures formed in(α+β)-rolled plates as a result of slipping mechanisms: the strong T-type texture in UDR plate was related to {10 1 0}[11 2 0] slipping, while the B-type texture in CDR plate was relevant with {0001}[11 2 0] slip. Strong T-type textures led to anisotropic tensile properties. B-type textures would decrease such an anisotropy. The(α+β)-CDR process was found to be a candidate process for reducing anisotropy of Ti60 alloy plates. | Wenyuan Li Zhiyong Chen Jianrong Liu Shaoxiang Zhu Guoxin Sui Qingjiang Wang | 2019 | Journal of Materials Science & Technology2019，35，5： | 11 |
| 3 | Indosinian Shahewan rapakivi granite in Qinling and its dynamic significance显示文摘Rapakivi granite is a postorogenic granite mainly occurring within Precambrian stable blocks in the world. Shahewan rapakivi granite in Qinling. however, is a seldom seen young rock body occurring at the end of Indo-Chinese epoch (195-213 Ma) and intruding in an orogenic belt. This rock body consists of amphibole-quartz monzonite and amphibole-biotitc adamellite and shows a series of distinctive geological andgeochemical characteristics. It intruded in Shangdan faulted zone--the main suture belt between the NorthChina and Yangtze plates as a result of the delamination of the lithospheric mantle occurring after collision. Presence of Shahewan rapakivi granite marked the end of orogenic stage of subduction-collision from Caled-onian-Hercynian to Indo-Chinese epoch and the transition to intracontinental orogeny in the late orogenic stage. | 卢欣祥 董有 常秋玲 肖庆辉 李晓波 王晓霞 张国伟 | 1996 | Science China Earth Sciences1996，39，3： | 11 |
| 4 | Novel Manufacturing Technology of Hyperbolic Plates for Shipbuilding显示文摘On the basis of the principle of dieless hydrobulging technology, a novel hydrobulging technology for manufacturinghyperbolic plates is proposed. First, a toroidal pipe elbow or a partial toroidal pipe elbow is formed, then the single hydrobulgedstructure can be cut up into some desired plates. It is proved by experiments and finite element simulation that manufacturingtechnology of hyperbolic plates adopting integrated hydrobulging forming technology is feasible. | ZHANG Xu , ZHANG Jia-tai , LIU Gang, YUAN S J, WANG Z R College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, 150001, China College of Material Science and Engineering, Harbin Institute of Technology, Harbin , 150001 , China | 2002 | Journal of Marine Science and Application2002，1，1： | 6 |
| 5 | A review of recent advancements in finite element formulation for sandwich plates显示文摘Use of composite structures is exponentially growing in different fields due to their higher strength-to-weight ratio. This application trend requires that accurate theoretical explanations and their finite element models be developed for analyzing sandwich plates before finalizing the designs. This paper reviews the recent research trends of finite element formulations developed for analyzing sandwich plates. This paper reviews the finite element models developed after the year 2000. Initially, the finite element formulations based on first order shear deformation theory, higher order shear deformation theories, mixed solid-shell elements, zig-zag theories and global–local theories are presented. Then, some finite element formulations developed to analyze a very new class of structures called piezoelectric structures are presented. At the end, some formulations to analyze a very critical phenomenon called buckling are presented. | Shehzaib IRFAN Faisal SIDDIQUI | 2019 | Chinese Journal of Aeronautics2019，32，4： | 5 |
| 6 | Recent progresses in H2-PEMFC at DICP显示文摘Proton exchange membrane fuel cell(PEMFC) as a power supply device has attracted wide attention in China and abroad for its advantages of high energy density, energy conversion efficiency and zero pollution.With the vigorous support of China's national policy, research institutes and enterprises have carried out extensive and pragmatic work on the basic materials, key components, stacks, auxiliary systems of PEMFCs, as well as the hydrogen station construction in order to realize the wide application of hydrogen energy.PEMFC System and Engineering Research Center of DICP is one of the earliest players in the H2-PEMFCs field.Advances have been achieved in the fields of low-platinum contained catalysts,PEMs, high-efficiency MEAs, low-cost metal bipolar plates, low-temperature and impurity air environment adaptability, stacks and systems.This paper introduces recent progresses of H2-PEMFCs at DICP in key materials, components, stacks, systems and the applications.The engineering status of proton exchange membrane water electrolysis(PEMWE) and the alkaline anion exchange membrane fuel cells(AEMFCs)are also summarized. | Feng Xie Zhigang Shao Ming Hou Hongmei Yu Wei Song Shucheng Sun Li Zhou Baolian Yi | 2019 | Journal of Energy Chemistry2019，28，9： | 4 |
| 7 | APPLICATIONS OF WAVELET GALERKIN FEM TO BENDING OF PLATE STRUCTURE显示文摘A kind of calculating method for high order differentials expanded by the wavelet scal-ing functions and the integral of their product used in Galerkin FEM is proposed,so that we can usethe wavelet Galerkin FEM to solve boundary-value differential equations with orders higher than two.To combine this method with the Generalized Gaussian integral method in wavelet theory,we can findthat this method has many merits in solving mechanical problems,such as the bending of plates andthose with variable thickness.The numerical results show that this method is accurate. | Zhou Youhe Wang Jizeng Zheng Xiaojing | 1999 | Acta Mechanica Solida Sinica1999，12，2： | 4 |
| 8 | Buckling analysis of functionally graded plates partially resting on elastic foundation using the differential quadrature element method显示文摘We extend the differential quadrature element method (DQEM) to the buckling analysis of uniformly in-plane loaded functionally graded (FG) plates fully or partially resting on the Pasternak model of elastic support. Material properties of the FG plate are graded in the thickness direction and assumed to obey a power law distribution of the volume fraction of the constituents. To set up the global eigenvalue equation, the plate is divided into sub-domains or elements and the generalized differential quadrature procedure is applied to discretize the governing, boundary and compatibility equations. By assembling discrete equations at all nodal points, the weighting coefficient and force matrices are derived. To validate the accuracy of this method, the results are compared with those of the exact solution and the finite element method. At the end, the effects of different variables and local elastic support arrangements on the buckling load factor are investigated. | Arash Shahbaztabar Koosha Arteshyar | 2019 | Acta Mechanica Sinica2019，35，1： | 4 |
| 9 | A new design of 3D-printed orthopedic bone plates with auxeticstructures to mitigate stress shielding and improve intra-operative bending显示文摘Orthopedic bone plates are most commonly used for bone fracture fixation for more than 100 years.The bone plate design had evolved over time overcoming many challenges such as insufficient strength and excessive plate–bone contact affecting the blood circulation.However,it is only made of two materials,either stainless steel(AISI 316L)or titanium(Ti–6Al–4V).There are two main limitations of metallic bone implants,namely stress shielding and the problem of malocclusion caused by the displacement of the fracture site during healing.To overcome the two problems,a new bone plate design with the incorporation of auxetic structures is proposed in this work.This study aims to use auxetic structure section in the bone plate that would decrease the stiffness of the region,thereby mitigating the stress-shielding effect and at the same time act as a deformable section to enable intra-operative bending for effective alignment while having enough bending strength and stiffness.Two different auxetic structures namely re-entrant honeycomb and missing rib structures were considered.The auxetic structure incorporated bone plates were designed,finite element analysis was done,fabricated using direct metal laser sintering technique,and tested.The results indicate that the re-entrant honeycomb structure incorporated bone plates serve as an effective bone design compared to the conventional bone plate design,in terms of stress shielding and intra-operative bending while offering similar mechanical and bending strength. | Sanjairaj Vijayavenkataraman Akhil Gopinath Wen F.Lu | 2020 | Bio-Design and Manufacturing2020，3，2： | 4 |
| 10 | Damage of multi-layer spaced metallic target plates impacted by radial layered PELE显示文摘Three different kinds of PELE(the penetrator with lateral efficiency) were launched by ballistic artillery to impact the multi-layer spaced metal target plates.The lmpact velocities of the projectiles were measured by the velocity measuring system.The damage degree and process of each laye r of target plate impacted by the three kinds of projectiles were analyzed.The experimental results show that all the three kinds of projectiles have the effect of expanding holes on the multi-layer spaced metal target plates.For the normal structure PELE(without layered) with tungsten alloy jacket and the radial layered PELE with tungsten alloy jacket,the diameters of holes on the seco nd layer of plates are 3.36 times and 3.76 times of the diameter of the projectile,re spectively.For radial layered PELE with W/Zr-based amorphous composite jacket,due to the large number of tungsten wires dispersed after the impact,the diameter of the holes on the four-layer spaced plates can reach 2.4 times,3.04 times,5.36 times and 2.68 times of the diameter of the projectile.Besides,the normal structure PELE with tungsten alloy jacket and the radial layered PELE whit tungsten alloy jacket formed a large number of fragments impact marks on the third target plate.Although the number of fragments penetrating the third target plate is not as large as that of the normal structure PELE,the area of dispersion of fragments impact craters on the third target plate is larger by the radial layered PELE.The radial layered PELE with W/Zr-based amorphous composite jacket released a lot of heat energy due to the impact of the matrix material,and formed a large area of ablation marks on the last three target plates. | Chun Cheng Zhong-hua Du Xi Chen Li-zhi Xu Cheng-xin Du Ji-long Han Xiao-dong Wang | 2020 | Defence Technology(防务技术)2020，16，1： | 3 |
| 11 | Electrochemical Behavior of Niobium Electrodeposited 316 Stainless Steel Bipolar Plate for PEMFC in Choline Chloride Based Ionic Liquids显示文摘Niobium was electrodeposited on 316 stainless steel bipolar plates of a fuel cell in water and air-stable choline chloride based ionic liquids. The electrochemical corruption property of bipolar plates in simulated PEMFC environment was investigated. It was showed that the plating film was distributed on the surface of 316 stainless steel like isolated islands with height less than 50 nm. The XPS, XRD results showed that a smooth and strong chemical inert film of Nb O and Nb2O5 was formed on the surface of 316 stainless steel. In simulated cathodic condition, the corrosion potential of Nb coated stainless steel was improved by 244 m V, whilst in an anodic condition, it was improved by 105 m V. The current densities for the coated 316 stainless steel were decreased to 2.479 4 μA·cm-2 from 14.810 μA·cm-2 at-0.1 V and to 0.576 μA·cm-2 from 13.417 μA/·cm-2 at 0.6 V, respectively. It was implied that the niobium coating effectively decreased the corrosion rate. The results of the electrochemical tests indicated that the corrosion resistance of stainless steel was greatly improved after coated with niobium. | 曹彩红 梁成浩 HUANG Naibao | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，5： | 3 |
| 12 | Nanofabrication of 50 nm zone plates through e-beam lithography with local proximity effect correction for x-ray imaging显示文摘High resolution Fresnel zone plates for nanoscale three-dimensional imaging of materials by both soft and hard x-rays are increasingly needed by the broad applications in nanoscience and nanotechnology.When the outmost zone-width is shrinking down to 50 nm or even below,patterning the zone plates with high aspect ratio by electron beam lithography still remains a challenge because of the proximity effect.The uneven charge distribution in the exposed resist is still frequently observed even after standard proximity effect correction(PEC),because of the large variety in the line width.This work develops a new strategy,nicknamed as local proximity effect correction(LPEC),efficiently modifying the deposited energy over the whole zone plate on the top of proximity effect correction.By this way,50 nm zone plates with the aspect ratio from 4:1 up to 15:1 and the duty cycle close to 0.5 have been fabricated.Their imaging capability in soft(1.3 keV)and hard(9 keV)x-ray,respectively,has been demonstrated in Shanghai Synchrotron Radiation Facility(SSRF)with the resolution of 50 nm.The local proximity effect correction developed in this work should also be generally significant for the generation of zone plates with high resolutions beyond 50 nm. | 朱静远 张思超 谢珊珊 徐晨 张丽娟 陶旭磊 任玉琦 王玉丹 邓彪 邰仁忠 陈宜方 | 2020 | Chinese Physics B2020，29，4： | 3 |
| 13 | Fracture Assessment for Electron Beam Welded Damage Tolerant Ti-6Al-4V Alloy by the FITNET Procedure显示文摘Fracture assessment of the cracked structures is essential to avoiding fracture failure.A number of fracture assessment procedures have been proposed for various steel structures.However,the studies about the application of available procedures for titanium alloy structures are scarcely reported.Fracture assessment for the electron beam(EB) welded thick-walled damage tolerant Ti-6Al-4V(TC4-DT) alloy is performed by the fitness-for-service(FFS) FITNET procedure.Uniaxial tensile tests and fracture assessment tests of the base metal and weld metal are carried out to obtain the input information of assessment.The standard options and advanced options of FITNET FFS procedure are used to the fracture assessment of the present material.Moreover,the predicted maximum loads of compact tensile specimen using FITNET FFS procedure are verified with the experimental data of fracture assessment tests.As a result,it is shown that the mechanical properties of weld metal are inhomogeneous along the weld depth.The mismatch ratio M is less than 10% at the weld top and middle,whereas more than 10% at the weld bottom.Failure assessment lines of standard options are close to that of advanced option,which means that the standard options are suitable for fracture assessment of the present welds.The accurate estimation of the maximum loads has been obtained by fracture assessment of standard options with error less than 6%.Furthermore,there are no potential advantages of applying higher options or mismatch options.Thus,the present welded joints can be treated as homogeneous material during the fracture assessment,and standard option 1 can be used to achieve accurate enough results.This research provides the engineering treatment methods for the fracture assessment of titanium alloy and its EB welds. | LU Wei SHI Yaowu LI Xiaoyan LEI Yongping | 2013 | Chinese Journal of Mechanical Engineering2013，26，5： | 3 |
| 14 | The Anomalous Response of Elastoplatic Circular Plates Under Impulsive Loading显示文摘The anomalous nonlinear elastic, perfectly plastic response behaviors of circular plate subjected to short transverse pulse load is studied. The plate is assumed fixed-pin along the boundary. 'Anomalous' here means that the final deflection may be in the direction opposite that of the load. It has been found by detailed numerical analyses that there exists anomalous response in some narrow loading ranges, so called slots. By further calculations it is shown that this special dynamic behavior is related to coupling affects of internal forces and large plastic deformation after removal loading. Further plastic dissipation will be lead to anomalous dynamic response. This phenomena could be considered as the coupling of the geometry nonlinearity, material nonlinearity,elastic effects and the irrecoverable of the plastic deformation. | Wu guiying Liu wei Yang guitong | 2004 | 上海交通大学学报2004，38，z2： | 3 |
| 15 | A THEORETICAL MODEL OF MAGNETOELASTIC BUCKLING FOR SOFT FERROMAGNETIC THIN PLATES显示文摘As an essential model of magnetoelastic interaction between magneticfield and mechanical deformation, the study on magnetoelastic buckling phenomenonof soft ferromagnetic plates in a magnetic environment has been conducted. One ofthe key steps for the theoretical prediction of the critical magnetic field is how toformulate lnagnetic force exerted on the magnetized medium. Till today, the the-oretical predictions, from theoretical models in publications, of the magnetoelasticbuckling of ferromagnetic cantilevered beam-plate in transverse magnetic field are allhigher than their experimental data. Sometimes, the discrepancy between them isas high as 100%. In this paper, the macroscope formulation of the magnetic forcesis strictly obtained from the microscope Amperion current model. After that, a newtheoretical model is established to describe the magnetoelastic buckling phenomenonof ferromagnetic thin plates with geometrically nonlinear deformation in a nonuni-form transverse magnetic field. The numerical method for quantitative analysis isemployed by combining the finite elemental method for magnetic fields and the finitedifference method for deformation of plates. The numerical results obtained from thisnew theoretical model show that the theoretical predictions of critical values of thebuckling magnetic field for the ferromagnetic cantilevered beam-plate are in excellentagreement with their experimental data. By the way, the region of applicability tothe Moon-Pao’s model, or the couple model, is checked by quantitative results. | 周又和 郑晓静 | 1996 | Acta Mechanica Sinica1996，12，3： | 2 |
| 16 | 12毫米厚铝合金板的搅拌摩擦焊研究(英文)显示文摘Most of the investigations regarding friction stir welding(FSW)of aluminum alloy plates have been limited to about 5 to 6mm thick plates.In prior work conducted the various aspects concerning the process parameters and the FSW tool geometry were studied utilizing friction stir welding of 12 mm thick commercial grade aluminum alloy.Two different simple-tomanufacture tool geometries were used.The effect of varying welding parameters and dwell time of FSW tool on mechanical properties and weld quality was examined.It was observed that in order to achieve a defect free welding on such thick aluminum alloy plates,tool having trapezoidal pin geometry was suitable.Adequate tensile strength and ductility can be achieved utilizing a combination of high tool rotational speed of about 2000 r/min and low speed of welding around 28 mm/min.At very low and high dwell time the ductility of welded joints are reduced significantly. | Deepati Anil Kumar Pankaj Biswas Sujoy Tikader M. M. Mahapatra N. R. Mandal | 2013 | Journal of Marine Science and Application2013，12，4： | 2 |
| 17 | APPLICATIONS OF WAVELET GALERKIN FEM TO BENDING OF BEAM AND PLATE STRUCTURES显示文摘In this paper, an approach is proposed for taking calculations of high order differentials of scaling functions in wavelet theory in order to apply the wavelet Galerkin FEM to numerical analysis of those boundary-value problems with order higher than 2. After that. it is realized that the wavelet Galerkin FEM is used to solve mechanical problems such as bending of beams and plates. The numerical results show that this method has good precision. | 周又和 王记增 郑晓静 | 1998 | Applied Mathematics and Mechanics(English Edition)1998，19，8： | 2 |
| 18 | ANALYSIS OF THE LARGE DEFLECTION DYNAMIC PLASTIC RESPONSE OF SIMPLY-SUPPORTED CIRCULAR PLATES BY THE“MEMBRANE FACTOR METHOD”显示文摘Based on energy equilibrium,a new procedure called the Membrane Factor Method is devel-oped to analyze the dynamic plastic response of plates with deflections in the range where both bending mo-ments and membrane forces are important.The final deflection of a simply -supported circular rigid-plasticplate loaded by a uniformly distributed impulse is obtained.In comparison with other approximate solutions,the present results are found to be simpler and in better agreement with the corresponding experimental valuesreoorded by Florence. | Yu Tongxi (1) Chen Faliang (1) | 1990 | Acta Mechanica Sinica1990，6，4： | 2 |
| 19 | Mode selection and high-quality upconversion lasing from perovskite CsPb2Br5 microplates显示文摘In recent years,halide perovskite nanostructures have had great advances and have opened up a bright future for micro/nanolasers.However,upconversion lasing by two-photon excitation with mode selection and high quality factor in one device is still rarely reported.Herein,two lasing modes are demonstrated in the all-inorganic perovskite CsPb2Br5 microplates with subwavelength thickness and uniform square shape.The net optical gain is quickly established in less than 1 ps and persists more than 30 ps,revealed by ultrafast transient absorption spectroscopy.The temperature-dependent low-threshold amplified spontaneous emission confirms the net gain for stimulated emission with a high characteristic temperature of 403 K,far surpassing the all-inorganic CsPbBr3 semiconductor gain media.Remarkably,upconversion lasing based on two kinds of microcavity effects,Fabry–Pérot and whispering-gallery modes,from the microplates at room temperature is successfully achieved with a low threshold operating in multi-or single-mode,respectively.Surprisingly,the quality factor(~3551)is among the best values obtained from perovskite micro/nanoplate upconversion lasers without an external cavity.Moreover,the highly stable chromaticity with color drift only less than 0.1 nm also outbalances the all-inorganic CsPbBr3 ones.These superior performances of CsPb2Br5 microplate lasing with a facile solution synthesis procedure will offer a feasible structure to fabricate specific functionalities for high-performance frequency upconversion micro/nanoscale photonic integrated devices. | ZHENGZHENG LIU CHUNWEI WANG ZHIPING HU JUAN DU JIE YANG ZEYU ZHANG TONGCHAO SHI WEIMIN LIU XIAOSHENG TANG AND YUXIN LENG | 2020 | Photonics Research2020，8，9： | 2 |
| 20 | Design Method of Curved-bar Refining Plates for Disc Refiner显示文摘Straight-and curved-bar refining plates are two important types of plates commonly used in disc refiners in the papermaking industry.Theoretically,the curved-bar refining plate has a relatively uniform bar interaction angle,which indicates uniform refining effects.The bar angle of the curved bar was proposed and two typical curved-bar plates,the three-stage radial curved-bar plate and isometric curved-bar plate,were designed in this paper.The arc equations of the curved-bar center line and curved-bar edges were established and finally,the specific edge load(SEL)of the curved-bar plate was derived.The determination of bar parameters was discussed,which provides a theoretical basis for the design of curved-bar plates. | Huan Liu JiXian Dong XiYa Guo RuiFan Yang Hui Jing XiaoJun Jiang | 2019 | Paper And Biomaterials2019，4，1： | 2 |
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