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DYNAMIC MIXED MODE FRACTURE INITIATION IN ROCK+Li Zhenzi; Liu Youwen; DU Hui; Xu Jicheng; Zhang Jinyi; Sun Zongqi(Department of Architectural Engineering, Central South University of Technology, Changsha, 410083, China)Abstract:In this paper, a distortion dynamic strain energy density factor criterion for dynamic mixed-mode fracture initiation in rock is suggested.The results of the investigation......
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J. Cent. South Univ. Technol. (2011) 18: 536-541 DOI: 10.1007/s11771-011-0728-0 Sliding mode robust controller for automatic rectification of shield machine YUE Ming(岳明)1, 2, SUN Wei(孙伟)2, WEI..., a design method of sliding mode robust controller oriented to the automatic rectification of shield machine was proposed. Firstly, the nominal load model of shield machine and the ranges of model......
) fracture; electrically conductive adhesive; rock 1 Introduction In mining, geotechnical and civil engineering, rock mass is mostly subjected to shear (Mode Ⅱ) and compression-shear (mixed Mode... in a strip reinforced by stiffeners at the edges [J]. Engineering Fracture Mechanics,1995, 51(6): 897-914. [3] SETHURAMAN R, MAITI S K. Determination of mixed mode stress intensity factors for a crack......
Effect of Calcination Temperature on Structure and O2 Desorption Properties of CexPr1-xO2-δ Mixed Oxides Wang Zhan1,Zhao Pengying1,Bu Yafan1,Yan Zonglan1,Shi Jun1 (1.Department of Basic Science, Tianjin Agricultural College, Tianjin 300384, China) Abstract:A series of CexPr1-xO2-δ (x=0,0.5,0.9,1.0) mixed oxide calcined at different temperatures were synthesized by sol-gel method......
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sheet; delamination; interface cohesive model; pure mode; mixed mode  ... is mixed mode, which pure mode Ⅰ and pure mode Ⅱ both occur in this mode. 3.2 Pure mode of delamination interface cohesive model Conveniently, the strain components εi and the traction stress......