,Element Types and Properties,第十四章单元类型及特性定义,第一节单元分类,第二节单元特性定义,第三节常见单元类型,第一节单元分类(element classification),plane stress element,plane strain element,Axisymmetric solid element,Solid element,Plate element,Shell element: thin shell &thick shell,Axisymmetric shell element,Rod element,Beam element,Spring element,Gap element,Interface element,Rigid element,Constraint element,Lump element,一、一维、二维和三维单元,二、线性、二次和三次单元,三、等参元、次参元和超参元,四、协调单元和非协调单元,五、传弯单元与非传弯单元,六、结构单元与非结构单元,plane element,Axisymmetric solid element,Solid element,Plate element,Shell element,Rod element,Beam element,Gap element,Interface element,Rigid element,constraint element,7. 位移单元 温度单元 流场单元 电磁场单元 塑料单元 ,Element,External shape: mesh,Internal data: properties,第二节单元特性定义（Element properties ）,element properties,material properties,physical properties,cross-sectional properties,element-related data,一、材料特性,二、物理特性,三、截面特性,四、单元相关几何数据,material orientation,cross-section orientation,rigid offset,Commonly-used elements,第三节常见单元类型,plane stress elementplane strain element,plane element,Solid element,Axisymmetric solid element,Rod element,Beam element,Some considerations:,Cross-section orientation,Node offset,DOF release,Plate element,Plate element,Thin shell element,Axisymmetric shell element,Spring element,Gap element,Interface element,Rigid element,Constraint element,Lump element,Any question?,The end,