类型及特性定义.ppt

有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Element Types and PropertiesElement Types and Properties 第十四章 单元类型及特性定义第十四章 单元类型及特性定义 第一节 单元分类第一节 单元分类 第二节 单元特性定义第二节 单元特性定义 第三节 常见单元类型第三节 常见单元类型 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 第一节 单元分类第一节 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 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Beam element Spring element Gap element Interface element Rigid element Constraint element Lump element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 一、一维、二维和三维单元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 二、线性、二次和三次单元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 三、等参元、次参元和超参元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 四、协调单元和非协调单元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 五、传弯单元与非传弯单元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 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 Structure element Gap element Interface element Rigid element constraint element Non-structure element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 7. 位移单元 温度单元 流场单元 电磁场单元 塑料单元 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Element External shape: mesh Internal data: properties 第二节 单元特性定义（Element properties ） 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling element properties material properties physical properties cross-sectional properties element-related data 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 一、材料特性 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 二、物理特性 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 三、截面特性 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 四、单元相关几何数据 material orientation cross-section orientation rigid offset 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Commonly-used elements 第三节 常见单元类型第三节 常见单元类型 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling plane stress element plane strain element plane element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Solid element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Axisymmetric solid element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Rod element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Beam element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Some considerations: Cross-section orientation 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Node offset 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling DOF release 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Plate element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Plate element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Thin shell element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Axisymmetric shell element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Spring element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Gap element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Interface element 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling 有限元分析与建模有限元分析与建模Finite Element Analysis and ModelingFinite Element Analysis and Modeling Ri