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displacement finite element
相关语句
  位移有限元
     APPLICATION OF ELASTO-PLASTIC LARGE DISPLACEMENT FINITE ELEMENT METHOD TO THE STUDY OF DEFORMATION PREDICTION OF SOFT ROCK TUNNEL
     弹塑性大位移有限元方法在软岩隧道变形预估系统研究中的应用
短句来源
     The stresses obtained by the standard displacement finite element method are discontinuous and are short of accuracy.
     通常的位移有限元法得到的应力是不连续且欠准确的。
短句来源
     Loubignac' s iterative method provides both displacement and stress continuous fields,and computed results are more accurate than those provided by classical displacement finite element method.
     Loubignac叠代法给出连续的位移场和连续的应力场,且其计算结果较经典的位移有限元更精确。
短句来源
     The paper analyzes and discusses the law that the result precision of thermal stress is affected by the proportionments of element border length, border condition, form function and so on, and compares the method with displacement finite element method being used.
     分析、讨论单元边长比、边界条件以及插值函数形式等对热应力结果精度的影响规律,并与现有的位移有限元方法进行比较、分析、评述。
短句来源
     In the case of thermal stress analysis of steam turbine rotors based on the finite element methods, the precision in thermal stress calculation by displacement finite element in common use is analyzed. The advantage and disadvantage of the multi-variable hybrid finite elements, the stress hybrid element, the hybrid element etc, are briefly stated.
     针对汽轮机转子热应力有限元分析方法 ,分析常用的位移有限元计算热应力时的精度问题 ,简述应力杂交元、杂交元等多变量杂交有限元的优缺点。
短句来源
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  位移有限单元
     By using displacement finite element based on the global-local displacement hypothesis1,2-3 higher-order theory,we calculate the displacement and interlayer stress of random angle laid laminated composites. The results of numerical calculation show that displacement finite element based on higher-order theory can calculate accurately not only the displacement of the laminated composites but also transverse shear stresses.
     利用基于整体-局部位移假设的1,2-3高阶理论的位移有限单元,对任意角铺设复合材料层合板位移及层间应力进行数值计算,计算结果表明,基于此高阶理论的位移有限单元不仅能很好地计算层合板位移,也能较好地计算横向剪切应力。
短句来源
  “displacement finite element”译为未确定词的双语例句
     By using the methods of response displacement, finite element response displacement and finite element dynamic analysis, the Port-Island wave of Hyoko Ken Nanbu (Kobe) earthquake was input to analyze the shallowly buried trunk subway structure with the considerations of slippage and coming away between the structure and soil under certain geological condition.
     应用反应位移法、有限元反应位移法和有限元动力分析方法,以兵库县南部地震的Port Island观测波形作为地震动输入,对某给定地质条件下的浅埋箱型地铁结构进行了不考虑结构与土脱开滑移和考虑结构与土脱开滑移的两种情况的计算。 通过计算可以了解到一般箱型结构与土脱开、滑移的位置和范围。
短句来源
     Based on interval analysis and displacement finite element method, the static displacement response analysis of structure comes down to solve the interval finite element control equation.
     现有的理论和方法采用区间分析和位移法有限元理论对其进行分析,最终归为位移法区间有限元控制方程的求解。
短句来源
     As we all known, while using traditional displacement finite element meth-ods to approximate this model, shearing locking will occur.
     传统的位移格式有限元方法在逼近这一模型时会遭遇剪切Locking.
短句来源
     In the present paper, boundary condition problems in the Rayleigh-Ritz and displacement finite element methods are discussed in viewpoint of teaching method, and several illustrative examples are Ikied to demonstrate the effects of the imposition of mechanical boundary conditions which is theoretically unnecessary in the displacement method.
     本文从教学法角度讨论瑞莱——立兹法和位移有限元素法中的边界条件问题,并通过一些数例来说明强加在理论上并不要求事先满足的力的边界条件所引起的效应。
短句来源
     The numerical results show that thestress-intensity factors given by this method are in good agreement with those by 3-D finite element method, more accurate than those by the method based on displacement finite element combined with line-spring model.
     结果表明,本文解和三维有限元解吻合很好,与基于位移元和线弹簧模型相结合的解相比,具有更高的精度和较宽的适用范围。
短句来源
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  displacement finite element
Comparison of the present solution with an assumed displacement finite element solution is made to demonstrate the accuracy and efficiency of the present approach.
      
In this method, a complex variable formulation in conjunction with a hybrid displacement finite element scheme is used to carry out the stiffness and stress calculations of finite cracked plates subjected to general boundary and loading conditions.
      
A hybrid-displacement finite element model for the bending analysis of thin cracked plates
      
This follows from the projection theorem describing finite element analysis which shows that the stresses computed by the displacement finite element procedure are abest approximation of the true stresses at an element as well as global level.
      
A good agreement of the results with theoretical solutions, and better performance compared with displacement finite element method, are observed.
      
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In the present paper, boundary condition problems in the Rayleigh-Ritz and displacement finite element methods are discussed in viewpoint of teaching method, and several illustrative examples are Ikied to demonstrate the effects of the imposition of mechanical boundary conditions which is theoretically unnecessary in the displacement method.

本文从教学法角度讨论瑞莱——立兹法和位移有限元素法中的边界条件问题,并通过一些数例来说明强加在理论上并不要求事先满足的力的边界条件所引起的效应。

Based on the potential energy action functional (1) for dynamic analysis of fluid-solid interaction problems, where some rotations in a com-pressible-inviscid fluid have been constrained by means of a penalty coefficient B, formulas (16), (19), (20) and (22) of a compatible finite element and the corresponding substructure-subdomain model are derived. A computer program - FSIAP has been developed. Some examples concerning earthquake response of a Dam-water system are calculated. The results drawn in Fig. 2-Fig....

Based on the potential energy action functional (1) for dynamic analysis of fluid-solid interaction problems, where some rotations in a com-pressible-inviscid fluid have been constrained by means of a penalty coefficient B, formulas (16), (19), (20) and (22) of a compatible finite element and the corresponding substructure-subdomain model are derived. A computer program - FSIAP has been developed. Some examples concerning earthquake response of a Dam-water system are calculated. The results drawn in Fig. 2-Fig. 7 and listed in Table 1 show that the displacement finite element method with the frequency shift technique and the substructure-subdomain technique described in the paper is appealing. for computing dynamic response of fluid-solid interaction systems and that with the same accuracy the mode synthesis method is much more economical than general finite element methods.

基于无粘可压流体在无旋罚系数下同固体耦合振动分析的位能型泛函,推导了流固耦合振动分析的位移元及位移协调子结构-子区域模型的方程。应用所编程序FSIAP,计算了坝水耦合地震响应的算例,验证了方法及程序。

In the last ten years or so, many investigators have devoted themselves to the study of the opening/closuring of a stationary and propagating crack. Newman [1] was the first one to perform the fatigue crack closure by using Elastic-Plastic Finite Element Method (EPFEM) with corrective iterations. Ref. [21 discussed further a material with crack by employing FEM nonlinear analysis. Nakagaki and Atluri [3] used a hybrid-displacement finite element to treat the stress and strain singularities near the crack...

In the last ten years or so, many investigators have devoted themselves to the study of the opening/closuring of a stationary and propagating crack. Newman [1] was the first one to perform the fatigue crack closure by using Elastic-Plastic Finite Element Method (EPFEM) with corrective iterations. Ref. [21 discussed further a material with crack by employing FEM nonlinear analysis. Nakagaki and Atluri [3] used a hybrid-displacement finite element to treat the stress and strain singularities near the crack tip, and analyzed the crack closure under four types of pulse cyclic loading. Miyamoto [4] researched into the elastic plastic response of the crack tip and the opening/closuring phenomenon with constant-strain finite element. However, the methods of analysis in References [3] and [4] are both rather time-consuming. The present paper is limited to analysing the opening/closuring phenomenon of a stationary crack with the First Order Selfcorrection method, utilizing the Elastic-Plastic FEM. It allows step-by-step calculation without iteration. Furthermore, the effect of the peak overload of cyclic loading on opening/closuring behavior of the crack is discussed. It was shown in Ref. [5] that the method provides enough accuracy and reduces the computational time. Of course, the present paper deals with a problem more complicated than that in Ref. [5]. Just as expected, the method still provides enough accuracy and reduces computational time. In the paper, stress distribution, strain distribution and plastic zone size are calculated. The behavior of crack opening/closuring under alternating load with different ratios of overload is given. The major findings are as follows: (1) the damage level due to retardation effects decreases with the value of the peak overload; (2) the damage due to a plus load and a subsequent minus compressive overload is severe.

本文讨论了在循环载荷下静止裂纹的开闭现象,这一问题的研究对进一步分析裂纹扩展的开闭行为和揭示两者的差异是很有意义的。文中讨论了交变载荷作用下,有不同超载比时(包括正超载和负超载)裂纹的开闭现象,同时给出了裂纹尖端附近的应力、应变场及塑性区尺寸。比较了在正、负超载情况下不同的损伤程度。

 
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