弹塑性有限元法,elasto-plastic FEM
1)elasto-plastic FEM弹塑性有限元法
1.This artical presents an analytic method to detemine load incremental factor by incrementalelasto-plastic FEM as the load comes to limited one.提出一种在确定结构极限载荷时增量弹塑性有限元法中载荷增量步长的优化分析方法。
英文短句/例句
1.The Monte Carlo method combined with the elastoplastic finite element method( FEM) is proposed to analyze the slope stability problems.蒙特卡洛随机搜索法与弹塑性有限元法结合,求解边坡稳定问题。
2.Elasto-plastic FEM for embankment stability analysis under the condition of seepage based on the technique of shear strength reduction渗流作用下边坡稳定性分析的强度折减弹塑性有限元法
3.Back Analysis of Displacement of Seep-stopping Wall in Deep Excavation Based on the Elastic-Plastic Finite Element Theory;基于弹塑性有限元法的深基坑防渗墙实测位移反馈分析
4.Applications of the Elasto-Plastic Finite Element Method Based on the Shear Strength Reduction Technique to Slope Stability Analysis under Plane Strain Condition;平面应变条件下强度折减弹塑性有限元法及其应用
5.Finite Element Method of Elasto-Plastic Problems of Media with Interfaces and Its Finite Element Algorithm of Elasto/visco-plasticity交界面介质的弹塑性问题的有限元法及其弹粘塑性有限元算法
6.Coupling Method of FEM and BEM of Elastic and Elasto-plastic Problems弹性与弹塑性问题的有限元与边界元耦合解法
7.Coupling of elastoplastic finite elements to elastic boundary clemens, (3).(2) 弹塑性有限元与弹性边界元的耦合;
8.FEM of Solving the Problems of Elasto-Plastic Disturbance Based on TDD二元扰动理论求解弹塑性扰动问题的有限元法
9.The Hybrid Stress Finite Element Method for 3D Elastic-Plastic Large Deformation Analysis三维弹塑性有限变形问题的杂交应力元法
10.Elastoplastic finite element iteration method for stability analysis of three-dimensional slope三维边坡稳定分析的有限元弹塑性迭代解法
11.ELASTIC COMPENSATION FINITE ELEMENT METHOD FOR PLASTIC LIMIT ANALYSIS OF A STRUCTURE SYSTEM WITH MULTI-MATERIAL多种材料结构体系塑性极限分析的弹性补偿有限元法
12.Large Deformation Elastic-Plastic Analysis of Soil Stability by Finite Flement Method;土体稳定性弹塑性大变形有限元分析
13.Fem Analysis of Elasto-Plastic Large Deformation on Slope Stability;边坡稳定性弹塑性大变形有限元分析
14.Landslide analysis by coupling large deformation elastic-plastic FEM with limiting equilibrium method大变形弹塑性有限元与极限平衡法滑坡耦合分析
15.Elastic-Plastic FEM Simulation on Thin Strip Cold Rolling Process;薄带钢冷轧过程的弹塑性有限元模拟
16.Research on Elastoplastic Finite Element on the Timber and Rampart of Xi an East City Gate;西安东门城楼城墙弹塑性有限元分析
17.Elastic-Plastic Fem Simulation on Plate Rolling Process中厚板轧制过程的弹塑性有限元模拟
18.Three-Dimensional Elastic-Plastic FEM Simulation for Cold Rolling of Plate and Strip板带冷轧过程三维弹塑性有限元模拟
相关短句/例句
Elastic-Plastic Finite Element Method弹塑性有限元法
1.Based on the elastic-plastic finite element method and strength reduction method,the stability of the rock slope behind the powerhouse of Jiudianxia hydroelectric station was studied and evaluated.采用弹塑性有限元法和强度折减法,对九甸峡水电站厂房后岩体边坡进行稳定性计算分析和评价。
3)elastic-plastic FEM弹塑性有限元法
1.To study the mechanism of production and regularities of distribution for residual stress in pipe drawing with fixed mandrel,the drawing process was investigated byelastic-plastic FEM.为了研究固定短芯棒拔管残余应力的产生机理和分布规律,采用弹塑性有限元法模拟拉拔过程,讨论模具形状参数、拉拔变形参数、摩擦条件对残余应力的影响。
4)elastoplastic finite element method弹塑性有限元法
1.Based on large-scale finite element analysis software ANSYS,the nonlinear finite element numerical simulation of stability of discharge tunnel and shaft after excavation is carried out withelastoplastic finite element method.江坪河水电站放空洞和竖井地质条件复杂,岩层、断层交错,基于大型有限元分析软件ANSYS,采用弹塑性有限元法,对其开挖后的稳定性进行了非线性有限元数值仿真,并根据实际地质情况,模拟了系统锚杆的支护作用。
2.Based on experimental analysis and withelastoplastic finite element method and FEM software ANSYS/LS-DYNA,finite element simulation analysis on finish rolling process of Ag/Cu composite is carried out,and the influence of percent reduction on contact force between sheet and rolls,sheet deformation,etc.在试验研究的基础上,应用大型有限元分析软件ANSYS/LS-DYNA,采用弹塑性有限元法对Ag/Cu复合材料精轧过程进行有限元数值模拟,研究了压下量对轧件与轧辊间接触力、轧件变形等的影响,结果表明:合理的压下量对轧件端面形状的控制是有利的。
5)elasto plastic finite element method弹塑性有限元法
1.The distribution of residual stress of spun cylindrical shapes on thickness has been simulated by large strainelasto plastic finite element method.本文用大变形弹塑性有限元法模拟了旋压筒形件壁厚方向上的残余应力分布，并讨论了工艺参数对残余应力分布的影响。
6)large formation elastic-plastic finite element methods大变形弹塑性有限元法
延伸阅读
弹—塑性有限元法弹—塑性有限元法elastic-plastic finite element method刚度矩阵，进行下一个增量步计算，直到求得整个弹一塑性间题的解。根据采用的刚度矩阵形式，可分为切线刚度法和割线刚度法。.代法是对变形体施加载荷采用某一近似刚度矩阵求出初步位移解，根据此解计算应力和相应的载荷，并用载荷的差值继续计算附加位移增量，按上述步骤进行叠代，直到附加位移小到某一许可值为止。把所有的位移叠加起来，即得到要求的解。根据刚度矩阵的形式不同可分为直接叠代法、牛顿法、修正牛顿法和拟牛顿法等。混合法把逐步加载法和叠代法同时使用，在某一增量步内进行叠代以提高计算精度。大变形弹一塑性有限元法大变形理论中，物体变形的描述有两种方法:拉格朗日法和欧拉法。拉格朗日法追随质点研究物体的变形，质点以在某一构形下的位置标记，称为物质坐标系或拉格朗日坐标系。此构形称初始构形。欧拉法以空间固定的坐标(欧拉坐标系)来描述质点的运动，其坐标随质点和时间而变化。物体在任一时刻的构形称现时构形。物体的现时坐标x，相对于物质坐标的偏导数刁x，/ax’称变形梯度。它把参考构形中质点凡的邻域映射到现时构形x‘的一个邻域，刻划了整个变形(线元的伸缩和转动)。它是有限变形理论的重要物理量。大变形有限元中，应变张量有两种表示形式:以初始构形定义的格林应变张量和以当前构形为参考构形的阿尔曼西应变张量(见应变张量)。应力张量根据定义方式不同有3种形式:柯西应力张量(有时称欧拉应力张量)，拉格朗日应力张量和克希霍夫应力张量。为保证应力不受刚体转动的影响，在本构关系中采用耀受应力率:此一房，一氏户。户，一‘。，式中礼为欧拉应力率。用欧拉法描述的大变形弹一塑性有限元的速率形本构关系为 弓一Dl*勺式中如为应变速度。欧拉描述的虚功方程是 万氏，“一dy一万尸!占一+好一‘1)式(1)的左端为变形能，右端是体积力F和表面力p在虚位移而:上做的虚功。在分析金属成形大变形过程时也常用欧拉描述法并忽略弹性体积微小变化的增量虚功率方程(见虚功原理)由此方程出发可得如下的平衡方程:K滋一尺式中K为刚度矩阵，它由小变形弹一塑性刚度矩阵和初应力刚度矩阵组成;成为节点速度列阵。欧拉描述的虚功方程式(l)可按变换规则转化为拉格朗日描述的虚功方程，并由此可得如下的平衡方程式:K(u)u=R式中K(u)称刚度矩阵，由3部分组成:K(u)一KL+KN+Ks。
