本人菜鸟,新学abaqus,想做土层的大变形固结,用2D planar deformable shell 建了一个矩形平面,然后在mesh模块的element type那里,在standard模块选择pore fluid/stress,几何是linear,即CPE4P单元时,按OK后,它弹出错误提示:“The Tri shape associated with the selected regions does not have a valid element”接着一句是:"Select a type that supports the Tri shape or eliminate the Tri shape from the Selected regions"。我想问问那个Tri shape是3次形状的意思吗?或者问,怎么样的形状才能算Tri shape?怎么样的形状才能用CPE4P??本人自知很菜,希望大家可以指点下。