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- virtual lamina shell element 预应力混凝土箱形连续梁桥
- Eight-nodded curvilinear quadrilateral isoparametric shell element is used both in the FEM and in the BEM. 在有限元方法和边界元法中均采用了八结点曲面四边形等参单元。
- This composite shell element possesses function for linear, geometry nonlinear and thermo-elastic analysis. 该复合材料壳元具有线性、几何非线性及热弹性分析功能。
- One is taper section 3D beam element model, the other is 3D compounding model with solid element and shell element. 结果表明，在均布荷载与集中荷载作用下箱梁的剪力滞效应明显不同，对于地震时程反应分析而言，采用变截面三维梁单元模型计算效率较高。
- A new type of shell element is presented to form an equilibrium equation with unknown node - displacements. 提出一种新的板壳单元,建立以结点位移为未知量的平衡方程组,组装得到的整体刚度矩阵为稀疏带状矩阵。
- In this paper,a degenerated beam element is developed,evolving from a bilinear degenerated shell element. 从双线性退化板壳单元出发,演绎推导出了一种可以应用于空间有限元分析的退化梁单元。
- Based on the assumed natural strain(ANS) theory,this paper has studied a novel macro triangular partition shell element. 针对剪切闭锁效应,本文研究了一种基于假设自然应变方法的宏观三角形分区平板壳单元。
- The 4 node quadrilateral shell element with an one point integration is employed in the model of safety cover of grinder. 采用显式时间积分格式，磨床安全防护罩采用一点积分的4节点双线性壳单元。材料服从等向强化塑性准则。
- The finite element model with shell element and beam element was established,the mechanical behavior of anchorage zone under the most unfavorable load was analyzed. 采用板壳单元和梁单元建立了索梁锚固结构的有限元模型,对索梁锚固区在最不利荷载组合作用下的受力性能进行了研究;
- The shell is modeled by a doublly curved quadrilateral shell element or triangular flat shell.They are suited for various mesh rezoning and any type of layup. 壳结构用四边形双曲壳或三角形平板壳模拟，可以适应各种 网格划分和任意铺层方式。
- Keywords suspension bridge;construction control;steel boxbeam;temperature stress;saddle pushing;frequent short steps;virtual lamina element;suspender cable;tangent point; 悬索桥;施工监控;钢箱梁;温度应力;索鞍顶推;小步快跑;虚拟层合单元;吊索;切点;
- For this reason, a new axisymmetric curved shell element with independent deflection and slope is presented by means of introducing generalized conforming condition int. 为此,通过对现有的轴对称壳体单元的研究,基于加权残值法,将广义协调条件引入剪应变场,构造了一种挠度和转角各自独立的新型轴对称曲壳单元。
- An axisymmetric shell element for both mid-thick and thin shells are presented. 推导了一种中厚壳和薄壳都运用的轴对称壳单元。
- Using improved thick shell element program, this paper analyses the space mechanics of shoping plate arch bridge with varies slope, produces the difinition of limitation slope. 利用改进的厚壳元程序，详细分析了斜板拱桥在不同斜度情况下的空间受力特性，提出“界限斜度”的概念。
- Numerical examples demonstrate that the four-node degenerated shell element proposed in this article has excellent performance and can avoid all kinds of locking problems. 数值结果表明，构造的四结点退化壳元拥有很好的性能，可避免各种自锁问题。
- Taking a bridge for example, the 3D finite model composed of shell element is used to analyze the stress disturbing of main loaded members of steel anchorage and to summarize the force transmission route. 以某钢箱梁自锚式悬索桥钢锚碇为背景,建立钢锚箱的板单元空间有限元模型,分析计算其钢锚箱主要受力板件的应力分布情况,总结钢锚固系统的传力途径。
- Based on 4-nodes quadrilateral mixed interpolation shell element and Total Lagrange formulations, elastic-plastic finite element analysis was made for the mechanical behavior of circular radial slotted plane rupture discs. 摘要基于T.;L
- These children were in a state of virtual neglect. 这些孩子实际上处于无人照管的状态。
- The fabric sheet is discretized with 8-node shell elements which are specially designed to describe the large rotation of fabric sheet during draping. 织物片用8结点壳单元离散，这种壳单元被特别设计，能描述织物片在悬垂中发生的大转动。
- D finite element analysis is done for the static and dynamic characteristics of large-scale prestressed U-shaped thin shell aqueduct with shell element and 3-D isoparametric element adopted. 采用壳体单元和三维等参单元,对大型预应力U型薄壳渡槽静动力特性进行了三维有限元分析,给出了静力分析结果,并与模型试验作了对比。
