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to simulate the nucleation and coalescence mode of the second phase droplets during the earth-based processing of immiscible alloys (in this case, the effect of gravity cannot be neglected). The cooling rate is the major factor influencing the coalescence mode. Under the super-rapid or rapid solidification condition (>104K/s), Brownian collision is the dominant coalescence mode. Marangoni......
angle is the main influence factor of the coalescence mode and compression strength of the specimen. When the transfixion failure of micro-cracks at the tip of the signal fissure or the brittle failure without micro-cracks occurs, the flaw angle is the main influence factor of the coalescence mode and compression strength of the specimen. Key words: fractured rock mass; compression strength; flaw......
A novel approach to prevent bubble coalescence during measurement of bubble size in flotationZHANG Wei(张炜)1, 2, Jan E. Nesset2, James A. Finch2(1. Mining and Mineral Resources Division, Department...:Effect of frothers in preventing bubble coalescence during flotation of minerals has long been investigated. To evaluate the performance of a frother, an apparatus to measure the bubble size is a basic......
. These experimental works were also simulated numerically by a modified higher order displacement discontinuity method and the cracks propagation and cracks coalescence were studied based on Mode I and Mode II...Cracks coalescence mechanism and cracks propagation paths in rock-like specimens containing pre-existing random cracks under compressionHadi Haeri1, Kourosh Shahriar2, Mohammad Fatehi Marji3, Parviz......
Efficient fast mode decision using mode complexity for multi-view video codingWANG Feng-sui(王凤随)1, 2, SHEN Qing-hong(沈庆宏)1, DU Si-dan(都思丹)1(1. School of Electronic Science and Engineering, Nanjing... application of MVC. An efficient fast mode decision method using mode complexity is proposed to reduce the computational complexity. In the proposed method, mode complexity is firstly computed by using......
]也认为压剪裂纹的相互连接具有张拉断裂和岩桥剪切断裂2种形式,见图7.本文通过分析压剪裂纹体的轴向贯穿(张拉破坏),岩桥剪断贯通(拉剪破坏)2种不同破坏模型探讨其在渗透压作用下的损伤断裂贯通力学机理. 图7 岩体裂纹贯通模式 Fig.7 Mode of crack coalescence for specimens 3.1 轴向贯通 分支裂纹稳定或不稳... and friction coefficient states, the low saturated pressure and lateral tensile stress lead to axis coalescence, and the high saturated pressure leads to bridge shear failure coalescence. Key words......
大的变化.裂纹的起裂应力是指预制裂纹尖端产生裂纹萌生时所对应的外部应力,对于次级裂纹剪切贯通而言,试样内部预制裂纹属于次生剪切贯通且试样所呈现出的起裂应力处于最小值. 图8 非贯通破坏示意图 Fig. 8 Schematic diagram of un-coalescence failure mode 裂纹的贯通应力是针对预制裂纹产生明显贯通现象时所对应的外部应力,由于预...,当=/2时t时刻翼形裂纹贯通,令和,得到第一类流变断裂贯通时间. 图17 第一类流变断裂贯通模式示意图 Fig. 17 Schematic diagram of first kind creep fracture coalescence mode 2) 流变断裂模式-Ⅱ贯通机制 如图18所示,翼裂纹与预制裂隙连接形成贯通,令和,得到第二类流变断裂贯通时间tr2. 图......
Simulation of lattice orientation effects on void growth and coalescence by crystal plasticity Mei YANG1,Xianghuai DONG1 (1.Department of Plastic Forming,Shanghai Jiaotong University,Shanghai... that crystallographic orientation has noticeable influences on the void growth directionvoid shape, and void coalescence of single crystal. The void growth rate of bicrystals depends on the crystallographic......
Mechanism and simulation of droplet coalescence in molten steelBing Ni1,Tao Zhang2,Hai-qi Ni2,Zhi-guo Luo21. Department of Metallurgical Technology, Central Iron and Steel Research Institute2. School of Metallurgy, Northeastern University摘 要:Droplet coalescence in liquid steel was carefully investigated through observations of the distribution pattern......
J. Cent. South Univ. (2020) 27: 3063-3077 DOI: https://doi.org/10.1007/s11771-020-4529-1 Numerical simulation on effect of heterogeneity on mode Ι fracture characteristics of rock WANG Jin-tao(王金涛... significance to the understanding of rock failure mechanisms. To this end, we have conducted numerical simulation researches on mode Ⅰ cracking process of rock with varying homogeneity, using......