ISA: A constitutive model for deposited sand

ISA: A constitutive model for deposited sand
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ISA:沉积砂本构模型

DOI:
10.1007/978-3-662-45991-1_10
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Th. Triantafyllidis
Th. Triantafyllidis
中科院分区:
--
文献类型:
--
作者:
W. Fuentes;Th. Triantafyllidis

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干砂和饱和砂的力学行为不仅取决于当前的孔隙比和有效应力,而且取决于它们的沉积方式。后者可以通过考虑不同制备方法的样品在实验室中重现。在这项工作中,扩展到现有的本构模型的砂考虑固有的织物效应。参考本构模型对应于伊萨(晶间应变各向异性)模型,该模型最近被提出来模拟静态和动态分析下的桑迪材料。固有组构的公式假设初始各向同性结构,这是以圆形颗粒为主的砂的典型结构。最后对两种不同的制备方法进行了卡尔斯鲁厄细砂的模拟分析。
The mechanical behavior of dry and saturated sands not only depend on the current void ratio and effective stress but also on their deposition method. This latter can be reproduced in the laboratory by considering samples with different preparation methods. In this work, an extension to an existing constitutive model for sands is presented to account the inherent fabric effects. The reference constitutive model corresponds to the ISA (Intergranular Strain Anistropy) model, which has been recently proposed to simulate sandy materials under static and dynamic analysis. The formulation of the inherent fabric assumes an initial isotropic structure typical of sands with predominant round shaped particles. Some simulations with the Karlsruhe fine sand are at the end analyzed considering two different preparation methods.
DOI: 10.1007/s11440-012-0161-z
发表时间: 2012-04
期刊: Acta Geotechnica
影响因子: 5.7
作者:
W. Fuentes;Theodor Triantafyllidis;A. Lizcano
通讯作者: W. Fuentes;Theodor Triantafyllidis;A. Lizcano
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
T. Triantafyllidis
通讯作者: T. Triantafyllidis