Print/viewing element stiffness matrix in nastran

[Bharathsf]

I have a model of a pressure vessel for which I need to see the element stiffness matrix for a few elements.Is there any way of seeing the stiffness matrix only for selected elements in .f06 format or in .pch format in nastran.
Please help

Thanks in advance

Bharat

 

[hezhj2000]

I don't know if you can output stiffness matrix in element level or not. But you can definitely output assembled (or global) element matrices. Use EXTSEOUT(STIFFNESS)=DIMGPCH will do the job. If you want to output at element level, a stupid method is to create a model with only each element, and output the stiffness matrix for that model. Please note that with EXTSEOUT, the simulation job will not be executed. You need to comment out it to run the simulation.