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, 2003: 1179-1184. [21] 范秋雁, 阳克青, 王渭明. 泥质软岩蠕变机制研究[J]. 岩石力学与工程学报, 2010, 29(8): 1555-1561. FAN Qiuyan, YANG Keqing, WANG Weiming. Study on creep mechanism of muddy soft rock[J]. Chinese Journal of Rock...码:A 文章编号:1672-7207(2019)05-1210-11 Viscoelastic-plastic creep model of high stress argillaceous siltstone LIU Xinxi1, 2, LI Shengnan1, 2, XU Zepei1, 2......
Shear creep parameters of simulative soil for deep-sea sedimentMA Wen-bo(马雯波), RAO Qiu-hua(饶秋华), LI Peng(李鹏), GUO Shuai-cheng(郭帅成), FENG Kang(冯康) (School of Civil Engineering, Central South... with water in order to find the best simulative soil for the deep-sea sediment collected from the Pacific C-C area. Shear creep characteristics of the simulative soil were studied by shear creep test......
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Effect of cooling rate during quenching on the microstructure and creep property of nickel-based superalloy FGH96Ye-fei Feng,Xiao-ming Zhou,Jin-wen Zou,Gao-feng TianScience and Technology on Advanced... on the microstructure and creep property of nickel-based superalloy FGH96 was investigated. Three groups of samples were quenched continuously with three fixed cooling rates, respectively, then subjected to a creep......
黏弹性体的剪切模量;ε11为三维状态下的轴向应变;σ1为轴向应力;σ3为围压. 2 蠕变模型参数的确定 2.1 蠕变破坏时间tF和岩石发生加速蠕变的时刻t* 经典的岩石蠕变曲线示意如图2所示,由图2可以确定2个时间参数,即蠕变破坏时间tF和岩石发生加速蠕变的时刻t*. 图2 经典的岩石蠕变曲线 Fig. 2 Classic rock creep curve 2.2 剪切模量G1和体积...100 mm,直径D为50 mm的标准圆柱体,对外观具有明显缺陷的试样进行剔除.制备得到的标准岩石试样如图3(a)所示. 图3 砂岩试样和蠕变试验系统 Fig. 3 Sandstone sample and creep test systems 试验设备采用MTS815.02试验系统如图3(b)所示.岩石的三轴力学特性试验步骤如下: 1) 将岩石试样两端均匀涂抹凡士林,保证测得试验数据不会受端部效......
Triaxial creep tests of weak sandstone from fracture zone of high dam foundationZHANG Yu(张玉)1, 2, XU Wei-ya(徐卫亚)2, GU Jin-jian(顾锦健)2, WANG Wei(王伟)2(1. College of Pipeline and Civil Engineering, China... at the dam foundation of a hydropower station is weak sandstone with poor integrity and pore cementation contact. Its creep properties have a significant impact on the deformation and stability......
Effect of Ca addition on the as-cast microstructure and creep properties of Mg-5Zn-5Sn magnesium alloyYANG Mingboa, b, CHENG Lianga, SHEN Jiaa, and PAN Fushengb a Materials Science and Engineering...="ChDivSummary">The effect of Ca addition on the as-cast microstructure and creep properties of Mg-5Zn-5Sn magnesium alloy was investigated. The results indicate that adding 1.0 wt.% Ca to Mg-5Zn-5Sn alloy can......
Microstructure and dislocation structure evolution during creep life of Ni-based single crystal superalloysHao Yua1,Wei Xu1,2,Sybrand van der Zwaag11. Novel Aerospace Materials Group, Faculty... single crystal superalloys during high temperature low stress creep service, is intrinsically determined by the combined effects of microstructural evolution and the dislocation behaviour. In the field......
of the corresponding aluminum matrix. The stress exponent of 5 was identified for the fabricated nanocomposites, which suggested that their creep behavior was related to dislocation climb mechanism. The enhanced...High strength and high creep resistant ZrB2/Al nanocomposites fabricated by ultrasonic-chemical in-situ reactionXizhou Kai,Shuoming Huang,Lin Wu,Ran Tao,Yanjie Peng,Zemin Mao,Fei Chen,Guirong Li,Gang......
the temperature rises to 900?C, the yield strength and ultimate tensile strength would decrease significantly. The creep deformation mechanism varies under different testing conditions. At 760?C/645 MPa...Tensile, creep behavior and microstructure evolution of an as-cast Ni-based K417G polycrystalline superalloyBeining Du1,Ziyang Hu1,2,Liyuan Sheng1,Chuanyong Cui3,Jinxia Yang3,Yufeng Zheng1,Xiaofeng......