STRESS-STRAIN

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The earthquake precursor detected in a granular medium and a proposed model for the propagation of precursive stress-strain signal被引量：2
《Chinese Science Bulletin》2011年第11期1071-1079,共9页LU KunQuan HOU MeiYing WANG Qiang PENG Zheng SUN Wei SUN XiaoMing WANG YuYing TONG XiaoHui JIANG ZeHui LIU JiXing 
supported by the Knowledge Innovation Project of the Chinese Academy of Sciences(KJCX2-SW-W15,KKCX1-YW-03);the National Natural Science Foundation of China(10374111)
A way to detect the seismic precursor in granular medium is described and a model of propagation for precursive stress-strain signals is proposed.A strain sensor buried in a sandpit is used to measure a seismic precur...
关键词：地震前兆 信号传播 应力应变 信号检测 颗粒介质 信号模型 岩石圈板块 应变信号 
Microscopic study on stress-strain relation of granular materials被引量：2
《Chinese Science Bulletin》2009年第23期4349-4357,共9页LIU SiHong YAO YangPing SUN QiCheng LI TieJun LIU MinZhi 
Supported by the National Natural Science Foundation of China (Grant Nos. 10672050, 10872016)
A biaxial shearing test on granular materials is numerically simulated by distinct element method (DEM). The evolution of the microstructures of granular materials during isotropic compression and shearing is investig...
关键词：微观结构 应力应变关系 颗粒物质 颗粒材料 各向同性 剪切过程 离散单元法 产量性状 
A model for dynamic recovery of bcc structure
《Chinese Science Bulletin》1997年第14期1211-1215,共5页Sun, DS Li, MS Zou, Y Yang, R Li, FZ 
GENERALLY the following two processes will take place simultaneously during hot deformation: one is work hardening caused by the increase of dislocation density on account of slip deforma-tion; the other is softening ...
关键词：body-centered CUBIC STRUCTURE dynamic RECOVERY stress-strain. 
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