A three-dimensional state-dependent model of soil-structure interface for monotonic and cyclic loadings
A three-dimensional state-dependent model of soil-structure interface for monotonic and cyclic loadings
复制标题
单调和循环载荷的土壤-结构界面三维状态相关模型
DOI：
10.1016/j.compgeo.2014.05.012
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发表时间：
2014-09
影响因子：
5.3
通讯作者：
Kong, Xianjing
中科院分区：
文献类型：
--
作者：
Liu, Jingmao;Zou, Degao;Kong, Xianjing
对基于临界状态土力学和广义塑性的弹塑性模型进行了修正，以反映土-结构界面的三维特性。修正后的模型假定了土-结构界面不同方向上的各向同性。在归一化剪应力平面上定义了两个圆形曲面，循环界面响应由归一化剪应力在该平面上的距离决定。通过一组参数，改进的模型模拟了土-结构界面在广泛的土壤密度、法向压力和法向刚度范围内的单调和循环三维行为。统一描述了单调和循环加载条件下的颗粒破碎，并采用与颗粒破碎相关的更明显的平移临界状态线来捕捉循环载荷下相当大的收缩行为。大多数模型参数都有明确的物理意义，可以通过常规的直剪或简单剪切试验进行标定。通过已发表的二维和三维应力路径下单调加载和循环加载下砂钢界面和砂石钢界面的试验，验证了修正模型的有效性。
An elasto-plastic model based on critical state soil mechanics and generalised plasticity was modified to capture the three-dimensional (3D) behaviour of soil–structure interfaces. The modified model assumed isotropic behaviour in different directions of a soil–structure interface. Two circular surfaces were defined on the plane of normalised shear stresses, and the cyclic interface response was determined by the distances of the normalised shear stress on this plane. With a single set of parameters, the modified model simulated the monotonic and cyclic 3D behaviour of soil–structure interfaces over a wide range of soil densities, normal pressures and normal stiffnesses. A unified description of the particle breakage under monotonic and cyclic loading conditions was incorporated, and the considerable contractive behaviour under cyclic loading can be captured by employing a more obvious translating critical state line related to particle breakage. Most of the model parameters have definite physical meanings and can be calibrated through conventional direct shear or simple shear tests. The modified model was validated against published tests of sand–steel interfaces and gravel–steel interfaces under both monotonic and cyclic loadings in 2D and 3D stress paths.
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影响因子：
5.3
作者：
Ga Zhang;Dongfang Liang;Jian-Min Zhang
通讯作者：
Ga Zhang;Dongfang Liang;Jian-Min Zhang
DOI：
10.1061/(asce)0733-9399(1990)116:5(983
发表时间：
1990-05
期刊：
Journal of Engineering Mechanics-asce
影响因子：
--
作者：
Zhi-Liang Wang;Y. Dafalias;Chih-Kang Shen
通讯作者：
Zhi-Liang Wang;Y. Dafalias;Chih-Kang Shen
影响因子：
5.3
作者：
R. Wan;P. Guo
通讯作者：
R. Wan;P. Guo
影响因子：
5.3
作者：
R. Frank;V. D. Gennaro
通讯作者：
R. Frank;V. D. Gennaro
DOI：
10.1061/(asce)1090-0241(2003)129:11(993
发表时间：
2003-11
影响因子：
3.9
作者：
J. E. Gómez;G. Filz;R. Ebeling
通讯作者：
J. E. Gómez;G. Filz;R. Ebeling