abaqus计算错误：missing the permeability definition

hypermesh Solid map，multi solids方法计算错误"missing the permeability.

(1)六面体网格划分，计算屈曲，问题描述如下

736 elements are are missing the permeability definition. The elements hidentified in element set ErrElemMissingPermeability.

Analysis Input File Processor exited with an error.

（2）问题分析

hypermesh 3D>solid map，multi solids 中source type为四边形

（3）解决方法

source type改为四边形和三角形mixed

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