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/rail profile evolution due to wear [J]. Wear, 2010, 269(3, 4): 167-173. DOI: 10.1016/j.wear.2009.12.031. [27] ZHAO Xin, LI Zi-li. The solution of frictional wheel–rail rolling contact with a 3D......
researchers have investigated the mode of tunnel deformation under excavation unloading using 3D FEM [3-7], which takes constitutive relationship of soil into account and obtains visual result by software......
. Figure 4(b) illustrates the high- resolution XPS of Sb 3d. The two strong peaks located at 529.88 and 539.28 eV corresponded to the banding energy of Sb 3d5/2 and 3d3/2, respectively, confirming......
,目的是检测腐蚀产物的次表层有无Y元素的存在.图5(a)所示为添加0.9%Y的AZ91的镁合金表面经过200 s氩刻前后的XPS全谱图.氩刻前后的全谱图没有明显差异,主要存在Mg,O,Al等元素,氩刻后,Mg,Al强度明显增强,O的强度明显降低.图5(b)所示为Y 3d氩刻前后的XPS谱,在浸泡96 h的样品表面没有检测到Y元素,经过200 s氩刻后仍然没有检测到Y元素的存在,可见稀土Y没有参与生成......
-fatigue crack propagation in a P/M Ni-based superalloy: From 2D to 3D assessment [J]. International Journal of Fatigue, 2017, 99: 175-186. DOI: 10.1016/j.ijfatigue.2017.03.003. [20] SEVOSTYANOV M......
shearer. JIA et al [20] proposed a 3D gear model to accurately calculate the meshing force of the gear system of shearer and concluded that it was better applied for the wide-faced gear. LI et al [21......
, YADROITSEV I, VINOGRADOVA N, EZHOV I. Martensitic transformations in Ti-6Al-4V (ELI) alloy manufactured by 3D printing [J]. Materials Characterization, 2018, 146: 101-112. DOI: 10.1016/j......
to be time-consuming, tedious, subjective and unsafe [2]. In recent years, the automatic identification and classification of pavement crack images (2D or 3D) have received increasing attention [3, 4......
by the solid-state reaction processes characterized by the 2D (two-dimensional diffusion, D2), 3D (three- dimensional diffusion, D3) and contracting cylinder (cylindrical symmetry, R2), respectively......
is application of 3D non-linear finite element analyses, which includes two different models: explicit time integration and implicit time integration. Many popular simulation software using explicit time...-BW and GRA, formulated a 3D train-track coupling dynamics model of a high-speed train that contains eight vehicles in MADYMO multibody dynamic software, and obtained a better structure design......