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18篇 您的检索式:作者名="Cho Chongdu"
    题名 作者 年代 出处 被引量
1Computational mechanics of laser cladding process显示文摘Chongdu Cho Guiping Zhao Kwak Si-Young 2004Journal of Materials Processing Technology2004,,11:1
2Study on torque analysis of micro electromagnetic clutch byusing the finite element method 显示文摘Changhao Park Chongdu Cho ChangBoo Kim HyeonGyu Beom 2006Key Engineering Materials2006,306,:1
3Feasibility study on a super-elastic SMA damper with re-centering capability 显示文摘Ma Hongwei Cho Chongdu 2008Ma- terials Science and Engineering:A2008,473,:1
4Effect of SmFe and TbFe film thickness on magnetostriction for MEMS devices显示文摘Heung-Shik Lee Chongdu Cho Sung-Pil Chang 2007Journal of Materials Science2007,,1:1
5Application of 3 D finite element method using Lagrangian formulation to dilution control in laser cladding process显示文摘Guiping Zhao Chongdu Cho Jae-Do Kim 2003Mechanical Sciences2003,45,5:1
6Effect of SmFe and TbFe film thickness on magnetostriction for MEMS devices显示文摘Heung-Shik Lee Chongdu Cho Sung-Pil Chang 2007Journal of Materials Science2007,,1:1
7A hybrid method for casting process simulation by combining FDM and FEM with an efficient data conversion algorithm显示文摘Ho-Mun Si Chongdu Cho Si-Young Kwahk 2003Journal of Materials Processing Technology2003,,133:1
8A hybrid method for casting process simulation by eobining FDM and FEM with an efficient data conversion algorithm显示文摘Ho-Mun Si Chongdu Cho Si-Young Kwahk 2003Materials Processing Technology2003,1,3:1
9TRANSIENT THERMOELASTIC ANALYSIS OF DISK BRAKE USING THE FAST FOURIER TRANSFORM AND FINITE ELEMENT METHOD显示文摘Chongdu Cho Sooick Ahn 2002Journal of Thermal Stresses2002,,3:1
10Experimental study on two types of new beam-to-column connec- tions显示文摘Ma Hongwei Jiang Weishan Cho Chongdu 2011Steel and Composite Structures2011,11,4:1
11Application of 3-D finite element met(b)od using lagrangian formulation to dilulion control in laser cladding process显示文摘Zhao Gulping Cho Chongdu Jae-Do Kim 0,,05:1
12Application of 3-D finite element method using Lagrangian formulation to dilution control in laser cladding process显示文摘Zhao Guiping Cho Chongdu Kim Jae-Do 2003International Journal of Mechanical Science A2003,45,:1
13Investigation on the magnetomechanical behavior of trilayered GM actuator显示文摘In this article, it was suggested a TbFe/Co/Dy trilayered GM (Giant Magnetostrictive) film type actuator and investigated the mag- netomechanical characteristics of the actuator for micro application. The trilayered films were fabricated at different thickness ratios to get an optimized structure. TbFe had positive GM properties, and cobalt, dysprosium layers made the magnetostriction property of composite film increase in low magnetic field. To fabricate the Si based microactuator with trilayered film, micromachining processes including RIE (Reac- tive Ion Etching) and selective DC magnetron sputtering techniques were combined. The deposited film thicknesses were measured by X-ray diffraction (XRD). As a result, the magnetization of the film on the fabricated actuator was observed to characterize the magnetic properties of the TbFe/Co/Dy film using VSM (Vibrating Sample Magnetometer). The magnetostriction of the actuator was determined by measuring the differences of curvature of the film coated silicon substrates using the optical cantilever method, and the deflections were also estimated under the external magnetic field lower than 0.5T for micro-system applications.Heung-Shik Lee Chongdu Cho 2008Journal of Rare Earths2008,26,2:1
14Computational Mechanics of Laser Cladding Process显示文摘Chongdu Cho Guiping Zhao Si-Yong Kwak 2004Materials Processing Technology2004,153,:1
15Application of 3-D Finite Element Method Using Lagrangian Formulation to Dilution Control in Laser Cladding Process显示文摘Guiping Zhao Chongdu Cho Jae-Do Kim 2003Mechanical Sciences2003,45,:1
16Mechanical behavior and properties of fiber reinforced ceramic matrix composites for high temperature use显示文摘Ceramics can keep their mechanical characteristics up to 2 000℃ or higher.In this paper,A model to predict ultimate strength of continuous fiber-reinforced brittle matrix composites is developed.A statistical theory for the strength of a uni-axially fiber-reinforced brittle matrix composite is presented.Also a semi-empirical frictional heating method for estimating in-situ interfacial shear in fiber-reinforced ceramic matrix composites was improved.Local uneven fiber packing variation as well as uneven micro-damage during fatigue can be expected to have effects on the composites:generation of frictional heating,thermal gradients,and residual stresses around local fiber breaks.This study examined those engineering interests by the finite element method.Chongdu Cho Qiang Pan Sangkyo Lee 2007航空动力学报2007,22,4:0
17Magnetostrictive Flexible Thin Film Structure for Micro Devices显示文摘Polyimide (Kapton, Dupont Corp.) based magnetostrictive thin film structures were designed and fabricated for micro device applications. In particular the growth of films on flexible substrates was studied to allow a simple integration of the system in miniaturized magnetostrictive devices. The films were fabricated on different substrates to compare their different magnetic and structural properties. It showed much more magnetostriction and higher impact resistance results compared with traditional Si based film type actuators. In the fabrication process, amorphous TbDyFe films with thicknesses of 500 nm, 1 μm, 1.5 μm respectively, were deposited on the designed substrate by DC magnetron sputtering. During sputtering process the substrate holder was maintained at room temperature. After the sputter process, X-ray diffraction studies were also carried out to determine the film structure and thickness of the sputtered film. At last, magnetization from VSM (Vibrating Sample Magnetometer) and magnetostriction from optical cantilever method of each structure were measured to estimate the magneto-mechanical characteristics under the external magnetic field lower than 0.7 T for micro-system applications.Heung-Shik Lee Chongdu Cho 2007Journal of Rare Earths2007,25,S1:0
18Application of Taguchi Method in Parametric Study of Injection Molding of Display Front Panel显示文摘Hyoungjun Moon Sang-kyo Lee Sang-youn Lee Chongdu Cho 2011材料科学与工程(中英文A版)2011,1,1X:0
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