模型数据的作用:定义一个有限元模型.包括单元,节点,单元性质,定义材料等等有关说明模型自身的数据.模型数据可被组织到零件中(零件可以被组装成一个有意义的模型).-At a minimum the model consists of the following information: geometry, element section properties, material data, loads and boundary conditions, analysis type, and outp