Stress propagation in a concentrated colloidal suspension under shear
Stress propagation in a concentrated colloidal suspension under shear
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剪切下浓缩胶体悬浮液中的应力传播
DOI：
10.1140/epje/i2012-12020-3
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
P. Hébraud
中科院分区：
文献类型：
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作者：
N. Martys;M. Khalil;W. George;D. Lootens;P. Hébraud
利用数值模拟方法研究了剪切作用下高浓度吸引胶体悬浮体中的应力传播。研究了胶体间应力场的空间相关性，定义了类惯性张量来表征应力场的各向异性性质。结果表明，胶体仍保持液态有序，胶体间应力具有很强的各向异性。流动下的过渡观察：在一个短暂的制度在低变形，应力传播沿着压缩方向的剪切，而在较大的变形，应力被组织成层平行于（流动，涡）平面。
The stress propagation in a concentrated attractive colloidal suspension under shear is studied using numerical simulations. The spatial correlations of the intercolloidal stress field are studied and an inertia-like tensor is defined in order to characterize the anisotropic nature of the stress field. It is shown that the colloids remain in a liquid order, the intercolloidal stress is strongly anisotropic. A transition under flow is observed: during a transient regime at low deformation, the stress propagates along the compression direction of the shear, whereas at larger deformations, the stress is organized into layers parallel to the (flow, vorticity) plane.
DOI：
10.1209/0295-5075/19/3/001
发表时间：
1992-06-01
期刊：
EUROPHYSICS LETTERS
影响因子：
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作者：
HOOGERBRUGGE, PJ;KOELMAN, JMVA
通讯作者：
KOELMAN, JMVA