查询词典 bounding surface

Comparison of bounding surface model and traditional elastic mechanics model of concrete

模型中采用了基于应变能量释放率空间的边界面模型，通过极限断裂面的不断移动模拟疲劳过程中损伤阈值的不断变化。

The bounding surface model and the generalized plasticity model are used to predict this behaviour.

对此给出了试验结果，并尝试用边界面及广义塑性模型来预测黄土的软化及液化现象。

The damage bounding surface concept is introduced to develop the modified four parameter Hsieh-Ting-Chen model.

通过引入损伤边界面的概念，导出了包含损伤变量的四参数Hsieh-Ting-Chen 边界面模型。

It is well known that bed porosities are greater near the bounding surface.

众所周知，靠近边界表面的床层自由空间率较大。

The author studies systemically the plasticity mechanics and researches the bounding surface plasticity constitutive model of soil in details.

采用自适应多步积分、局部迭代和射线回退相结合的积分方法，给出了边界面塑性本构关系数值实现过程。

The results show that the bounding surfaces of study reservoir can be divided into six grades, lithofacies into eleven kinds and architectural elements into four kinds, among which the architectural element restricted by the fourth bounding surface is the most primary unit.

结果表明，目的储层可划分为6级层次界面、11种岩石相类型、4种建筑结构要素，其中4级界面限定的成因砂体为研究的基本单位。

Damage function is introduced in elastic and plastic modulus expression of the bounding surface formulation directly; then a bounding surface damage model for structural soft soil is developed; the complication induced by introducing damage parameter into the bounding surface equation is avoided and its numerical implementation is easy for the analysis of earth structures.

在边界面理论的弹塑性模量中直接引入损伤函数，建立结构性软土的边界面损伤模型，避免了在边界面方程中引入损伤变量带来的复杂性，易于在土工数值分析时采用。

Based on the plasto-elastic bounding surface model, the dynamic characters of typical clay and silt were studied through several types of laboratory dynamic tests. The parameters of dynamic bounding surface model were given upon the tests. By using a nonlinear procedure for response analysis of horizontally layered sites subjected to multi-directional earthquake loading, the response of acceleration, pore pressure and dynamic stress in Shanghai area under different earthquakes were studied.

在弹塑性边界面模型的基础上，通过试验，研究了上海地区典型粘土和砂性土的动力特性，取得了针对边界面模型的计算参数，并采用多向地震作用下的水平地层弹塑性动力反应分析程序对以深厚软土覆盖地层为特点的上海地区典型的土层断面，以苏南核电站为主的地震输入进行了场地反应分析，在加速度特性、孔压特性和动应力特性等方面取得了相应的结果。

In the bounding surface masonry model, the sliding yield surface is considered as isotropic hardening and rotating hardening bounding surface, and the masonry model is expanded from monotonic loading to complex loading.

把滑移屈服面看作为等向硬化和旋转硬化的边界面，从而合理地把砌块体模型从单调荷载推广到复杂荷载情况。。。

A modefied egg function has been proposed and used in a bounding surface model. This model has potential value of applicaton since it reflects better actual situation of soil mass under loading. That is: when a stress point is still within the yield surface, the unrccovered plastic deformation would occur as stresses change, and using closed smooth function makes stress modification in the FEM much easier.

文中提出了一个改进蛋形函数，并采用这个函数建立了边界面模型，该模型由于机理上更好地反映了土体受荷时的实际情况，即当应力点在屈服面内时，随着应力状态的改变，仍然可以产生不可恢复的塑性变形，而在计算功能上由于使用了封闭光滑的边界面，不存在角点问题使有限元程序计算显得很方便，从这两个方面看，该模型具有潜在的应用价值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。