PLANE82.doc

PLANE82 2-D 8-Node Structural Solid 单元性质： 2 维 8 节点结构实体单元 MP ME ST PR PRN DS PP EME MFS Product Restrictions MP ME ST PR PRN DS PP EME MFS 有效(限制)产品 PLANE82 Element Description PLANE82 单元说明 Although this legacy element is available for use in your analysis, ANSYS recommends using a current-technology element such as PLANE183. 尽管这种遗留单元在分析中可以使用，但是ANSYS建议使用像PLANE183当前使用单元。 PLANE82 is a higher order version of the 2-D, four-node element (PLANE42). It provides more accurate results for mixed (quadrilateral-triangular) automatic meshes and can tolerate irregular shapes without as much loss of accuracy. The 8-node elements have compatible displacement shapes and are well suited to model curved boundaries. PLANE82 是 2 维 4 节点单元 (PLANE42) 的高阶版本。对于四边形和三角形混合网格，它有较高的结果精度；可以适应不规则形状而较少损失精度。本 8 节点单元具有一致位移形状函数，能很好地适应曲线边界。 The 8-node element is defined by eight nodes having two degrees of freedom at each node: translations in the nodal x and y directions. The element may be used as a plane element or as an axisymmetric element. The element has plasticity, creep, swelling, stress stiffening, large deflection, and large strain capabilities. Various printout options are also available. See PLANE82 in the Theory Reference for the Mechanical APDL and Mechanical Applications for more details about this element. See PLANE83 for a description of an axisymmetric element which accepts nonaxisymmetric loading. 本单元有8个节点，每个节点有 2 个自由度，分别为 x 和 y 方向的平移，既可用作平面单元，也可以用作轴对称单元。本单元具有塑性、蠕变、辐射膨胀、应力刚度、大变形以及大应变的能力。有多种打印输出选型可用。关于本单元的更多细节见 ANSYS 公司理论手册 中的 PLANE82。关于能承受非轴对称载荷的轴对称单元的说明见 PLANE83。 图?82.1??PLANE82 单元几何 PLANE82 Input Data PLANE82 输入数据 The geometry, node locations, and the coordinate system for this element are shown in Figure?82.1:?PLANE82 Geometry. 在图 82.1: PLANE82 单元几何 中给出了本单元的几何形状，节点位置和坐标系。 A triangular-shaped element may be formed by defining the same node number for nodes K, L and O. Beside