Minimum geometrical reference element 最小参考要素
geometrical nonlinear finite element theory 几何非线性有限元理论
The prediction model of chip up-curl radius was established by analyzing the chip restriction action of geometrical element in three-dimensional groove.
分析了三维槽型的几何单元对切屑的约束作用，推导出直线圆弧槽型、双直线圆弧槽型、凸曲面槽型和斜槽槽型的切屑上向卷曲半径；
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
The effect of the initial geometrical imperfection on the buckling critical pressure and buckling model has been taken into account in the finite element simulation.
在有限元模拟中，分析了初始几何缺陷对壳体起皱的临界压力和起皱形态的影响。
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