Release 10.0 Documentation for ANSYS SHELL63 Elastic Shell 弹性壳单元 SHELL63 Element Description SHELL63 单元描述 SHELL63 has both bending and membrane capabilities. Both in-plane and normal loads are permitted. The element has six degrees of freedom at each node: translations in the nodal x, y, and z directions and rotations about the nodal x, y, and z-axes. Stress stiffening and large deflection capabilities are included. A consistent tangent stiffness matrix option is available for use in large deflection (finite rotation) analyses. See SHELL63 in the ANSYS, Inc. Theory Reference for more details about this element. Similar elements are SHELL43 and SHELL181 (plastic capability), and SHELL93 (midside node capability). The ETCHG command converts SHELL57 and SHELL157 elements to SHELL63. SHELL63 既具有弯曲能力又具有膜力，可以承受平面内荷载和法向荷载。本单元每个节点具有6 个自由度：沿节点坐标系X、Y、Z 方向的平动和沿节点坐标系X、Y、Z 轴的转动。应力刚化和大变形能力已经考虑在其中。在大变形分析（有限转动）中可以采用不变的切向刚度矩阵。其详细的特性请参考 Section 14.63 of the ANSYS Theory Reference。 近似的单元有SHELL43，SHELL181(塑性能力)，SHELL93（包含中间节点）ETCHG 命令可以将SHELL57 和SHELL157 单元转换为 SHELL63 单元。 Figure 63.1 SHELL63 Geometry Figure 63.1 shell63 几何描述 xIJ = Element x-axis if ESYS is not supplied.如果无 ESYS 则 xIJ 为单元X 轴 x = Element x-axis if ESYS is supplied. 如果有ESYS 则为单元X 轴 SHELL63 Inpu t Data SHELL63 输入数据 The geometry, node locations, and the coordinate system for this element are shown in Figure 63.1: "SHELL63 Geometry". The element is defined by four nodes, four thicknesses, an elastic foundation stiffness, and the orthotropic material properties. Orthotropic material directions correspond to the element coo...
