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large strain fem
相关语句
  大变形有限元
     STUDY ON LARGE STRAIN FEM AND CAD/CAM WITH COMPLEX PASS DURING 3-ROLL REDUCING
     复杂孔型约束下三辊减径过程大变形有限元法与CAD/CAM一体化研究
短句来源
     A large strain FEM program is compiled to compare thedifference of large strain method and small strain method.
     编制了大变形有限元分析程序,比较了大变形Lagrange法(TL和UL法)与小变形法的差异。
短句来源
     On the basis of the pointsurface contact element and the updated Lagrange large strain FEM, a tracing analysis was made of the deformation of soil particle skeletons under the Van Der Waals attraction, the doublelayer repulsion and external loads, and the micromechanism of skeleton deformation, failure, structure, and creep was also discussed, providing a basis for development of constitutive models of structural soil.
     提出点面接触单元,再通过更新的Lagrange大变形有限元法,对有限尺寸和任意方位的土粒骨架在VanDerWaals分子吸力、Coulomb电荷斥力和外荷载作用下的变形问题进行了跟踪分析,定量探索和分析了土体的变形、破坏、结构性和蠕变的内在机理,为建立结构性土的本构模型提供了微观基础.
短句来源
  “large strain fem”译为未确定词的双语例句
     The 3─roll reducing processes are simulated and predicted by using 3─D elastic─plastic large strain FEM on the PC / 386 computer. The displacement field and flow field of workpiece deformation are given. The internal angle defects of the seamless tube are studied in detail during 3─roll reducing.
     FLOWFIELDANALYSISANDGRAPHICCADDURING3─ROLLREDUCINGOFTHEHOLLOWTUBEFLOWFIELDANALYSISANDGRAPHICCADDURING3─ROLLREDUCINGOFTHEHOLLO.
短句来源
  相似匹配句对
     The strain of B.N.
     N .
短句来源
     The Grid Method for Large Strain
     网格法用于大应变的确定
短句来源
     Large Strain Measurement Method and Its Applications
     大应变测量的密栅云纹方法及应用
短句来源
     FEM for Large Strain Analysis in Deep Foundation Pit
     基坑支护有限元大应变分析
短句来源
     , and textual (e.g. by and large).
     和语篇搭配(如by and large)。
短句来源
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A new initial geometrie defect model——elliptic defect model for research on the limit strain of sheet metals is first presented. The effects of the elliptic defect models of various ratioes of major axis to minor axis, the standard M-K defect model and the Circular delect mouels on the limit strains for a biaxially-stretched sheet are studied with large-strain FEM.large strain versions of J2 flow theory and J2 deformation theory of plasticity.The results show that the...

A new initial geometrie defect model——elliptic defect model for research on the limit strain of sheet metals is first presented. The effects of the elliptic defect models of various ratioes of major axis to minor axis, the standard M-K defect model and the Circular delect mouels on the limit strains for a biaxially-stretched sheet are studied with large-strain FEM.large strain versions of J2 flow theory and J2 deformation theory of plasticity.The results show that the effects of the elliptic defect on the limit strain for biaxially-stretched sheet metals are related to the ratio of major axis to minor axis of ellipse and the sheet thickness in elliptic region. The results also indicate that the circular defect model gives an upper bound to limit strain. While the Standard M-K defect model gives a lower bound to limit strain, and that the circular defect Model and the M -K defect model are special cases of the elliptical defect models. The study proves that the J2 flow theory of large strain plasticity is more sensitive to the shape of the defect than the J2 deformation theory of large strain plasticity. The material of the sheet is elastically and plastically incompressible if it is subject to plane stress state. .

在研究板料的极限应变时,提出了一种新的初始几何缺陷模型——椭圆缺陷模型。用大变形弹塑性有限元法,按大变形J_2塑性流动理论,大变开J_2塑性变形理论分析了具有不同长短半轴椭圆缺陷模型,标准的M-K缺陷模型,圆形缺陷模型对双向受拉金属板极限应变的影响。分析结果表明,椭圆缺陷对双向受拉金属板极限应变的影响与椭圆的长短半轴比及椭圆区板厚有关。根据圆形缺陷模型算出的极限应变值是上限,根据标准的M-K缺陷模型算出的极限应变值是下限。圆形缺陷模型和标准的M-K缺陷模型是椭圆缺陷模型的特殊情况。分析还表明,大变形J_2塑性流动理论对缺陷比大变形J_2塑性变形理论更敏感。分析时,假定双向受拉金属板处于平面应力状态,在弹性、塑性状态下都是体积不可压缩的。

The 3─roll reducing processes are simulated and predicted by using 3─D elastic─plastic large strain FEM on the PC / 386 computer.The displacement field and flow field of workpiece deformation are given. The internal angle defects of the seamless tube are studied in detail during 3─roll reducing.the predictions of the forming product quality and technology parameter are realized by means of PC / 386 computer.

FLOWFIELDANALYSISANDGRAPHICCADDURING3─ROLLREDUCINGOFTHEHOLLOWTUBEFLOWFIELDANALYSISANDGRAPHICCADDURING3─ROLLREDUCINGOFTHEHOLLO...

The pass function determined by measuring dispersed point coordinates on the pass profile is studied.3-dimension elastic-plastic large strain FEM is used to simulate the workpiece deformation and work roll pass profile in the processes of 3-roll reducing,The arbitrary pass curve can be predicted by using the developing program.It is very useful for the study of some technological parameters,such as friction,workpiece size,reduction etc.,and equipment.It is pointed out that the integration of product...

The pass function determined by measuring dispersed point coordinates on the pass profile is studied.3-dimension elastic-plastic large strain FEM is used to simulate the workpiece deformation and work roll pass profile in the processes of 3-roll reducing,The arbitrary pass curve can be predicted by using the developing program.It is very useful for the study of some technological parameters,such as friction,workpiece size,reduction etc.,and equipment.It is pointed out that the integration of product design and pass CAD/CAM is very important.

利用孔型离散点坐标确定孔型发生函数,在考虑材料、几何双重非线性的同时,应用三维弹塑性有限元法对三辊减径过程中的工件变形和轧辊孔型进行了分析,建立了能模拟任意孔型轮廓曲线的函数发生器。对详细研究无缝管三辊减径时各种工艺参数(如摩擦条件、孔型形状、坯料尺寸、减径率等)、设备参数提供了依据。为产品设计、孔型CAD/CAM高技术应用奠定基础。

 
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