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Investigation on the magnetomechanical behavior of trilayered GM actuator Heung-Shik Lee1,Chongdu Cho1 (1.Department of Mechanical Engineering, Inha University, Yonghyun-dong, Nam-ku Incheon 402-751, South Korea) Abstract:In this article, it was suggested a TbFe/Co/Dy trilayered GM (Giant Magnetostrictive) film type actuator and investigated the magnetomechanical characteristics......
failure criterion YANG Zi-han(杨子汉), ZHANG Rui(张睿), XU Jing-shu(许敬叔), YANG Xiao-li(杨小礼) School of Civil Engineering, Central South University, Changsha 410075, China Central South University Press... and excavation of karst tunnels in the future. Key words: karst tunnel; water inrush; safe thickness of rock plug; upper bound theorem; nonlinear failure criterion; non-associated flow rule 1 Introduction......
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on triple shear unified yield criterion and its applications HU Xiao-rong (1. School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, China) Abstract: The axisymmetric characteristics line theory for weight materials was established based on the triple shear unified yield criterion. The main features are as follows: in describing the yield properties for materials......
Creep failure mode and criterion of Xiangjiaba sandstoneWANG Wei(王伟)1,2, LI Liang-quan(李良权)3, XU Wei-ya(徐卫亚) 1,2, MENG Qing-xiang(孟庆祥) 1,2, LÜ Jun(吕军) 1,2(1. Key Laboratory for Geomechanics... in short-term tests and creep tests, fractography of sandstone after creep failure, short-term and creep failure criterion are analyzed. In the short-term tests and creep tests, the sandstone samples......
J. Cent. South Univ. (2012) 19: 1419-1424 DOI: 10.1007/s11771-012-1158-3 Energy dissipation of cavity expansion based on generalized non-linear failure criterion under high stresses ZOU Jin-feng(邹金锋...: Based on the compression mechanism for analyzing the cavity expansion problem in soil under high stresses, generalized non-linear failure criterion and large strain and energy conservation in plastic......
conducted to determine Ccri. The relationship between Ccri and uniaxial tension fracture strain is derived as follows. Ignoring the anisotropic property of sheet metal, the von Mises yield criterion is used... in non-isothermal viscous pressure bulging of aluminum alloy sheet using ductile fracture criterion WANG Zhong-jin(王忠金), LIU Jian-guang(刘建光), LI Yi(李毅) School of Materials Science and Engineering......
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, China Received 26 April 2010; accepted 29 July 2010 Abstract: Prandtl-Reuss flow rule and Hill’s yield criterion were adopted and combined with the concept of finite deformation theory, updated... drawing ratio of this elliptical cup drawing is defined to be 2.136. Key words: yield criterion; finite element; elliptical cup drawing; limit drawing ratio 1 Introduction Stainless steel is made......
by the type of yield criterion used in the calculation, especially at lower temperatures. Furthermore, a better agreement between the predicted results and experimental data for AZ31 magnesium alloy sheet at warm temperatures was obtained when Hill’48 yield criterion was applied. Key words: magnesium alloy; forming limit diagram; theoretical prediction; yield criterion; sheet warm forming 1 Introduction......