共搜索到2201条信息,每页显示10条信息,共221页。用时:0小时0分0秒265毫秒
Crack Initiation and Propagation Evaluation for Sn–5Sb Solder Under Low-Cycle FatigueNoritake HiyoshiDivision of Engineering, Faculty of Engineering, University of Fukui摘 要:In this study, a crack initiation and propagation behavior of Sn–5Sb lead-free solder under low-cycle fatigue is discussed. Cyclic push–pull loading tests with a single-hole specimen......
Direct writing of silver microfiber with precise control on patterning for robust and flexible ultrahigh-performance transparent conductorTao Chen,Heping Li,Jing Li,Sanyuan Hu,Pin Ye,Youwei YanState... conductivity and transparency to attain a flexible transparent conductor.The silver network is composed of silver microfibers,which can be artificially designed and regularly patterned under the precise......
Trans. Nonferrous Met. Soc. China 24(2014) 1547-1553 Modified algorithm of combined GPS/GLONASS precise point positioning for applications in open-pit mines Chang-sheng CAI, Xiao-min LUO, Jian-jun... precise point positioning (GG-PPP) was developed by decreasing the number of unknowns to be estimated so that accurate position solutions can be achieved in the case of less number of visible satellites......
the natural crack around a tunnel, and then the drop weight testing machine was used as the loading device. In the process of dynamic loading test, strain gauges were applied to determine crack initiation time..., the numerical results were compared with the test results. The results show that when the impact loads come from the tunnel roof, the failure of the tunnel mainly includes crack initiation and propagation......
Investigation of effective dimensionless numbers on initiation of instability in combustion of moisty organic dustMehdi Bidabadi1, Farzad Faraji Dizaji1, Hossein Beidaghy Dizaji2, Moslem Safari... and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran)Abstract:In this work, the effect of various effective dimensionless numbers and moisture contents on initiation of instability......
High-cycle fatigue crack initiation and propagation in laser melting deposited TC18 titanium alloyYang Wang,Shu-quan Zhang,Xiang-jun Tian,Hua-ming WangLaboratory of Laser Materials Processing... and the increase of distance from the pore location to the specimen surface. The crack initiation region was characterized by the cleavage facets of α lamella and the tearing of β matrix. The soft α precipitated......
Influence of grain size on the small fatigue crack initiation and propagation behaviors of a nickel-based superalloy at 650℃Xumin Zhu1,Congyang Gong1,2,Yun-Fei Jia1,Runzi Wang1,Chengcheng Zhang2,Yao... by using single edge notch tensile specimens. The number of main cracks and crack initiation mechanisms at the notch surface strongly depended on the grain size. The crack initiation life accounted......
corrosion. The susceptibility of nickel-chromium steel to pit initiation is less than that of manganese steel. Under the same conditions, nickel-chromium steel is easier to passivate than manganese......
J. Cent. South Univ. (2012) 19: 2681-2688 DOI: 10.1007/s11771-012-1327-4 Effects of wheelset vibration on initiation and evolution of rail short-pitch corrugation YAN Zi-quan(闫子权)1,2, GU Ai..., Delft University of Technology, Delft, 2600GA, Netherlands ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The initiation and evolution of short-pitch......
......