Can anyone shed some light on the definion of CPYRA elements in NX-NASTRAN ?

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Bharath V G

Pyramid elements are represented by CPYRAM cards in exported Nastran decks. When importing Nastran decks, CPYRA elements are accepted as equivalent to CPYRAM elements.For further refer the mentioned below link: http://knowledge.autodesk.com/support/simulation-mechanical/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/SimMech-UsersGuide/files/GUID-C1FD2853-5FF4-4200-BB89-B9472FAE4B73-htm.html

I think CPYRA Elements must be converted to brick elements.

Definition:

CPYRA Element

A new five-sided pyramid solid element connecting 5 or 13 grids can be used for any type of analysis. This new element is supported in all types of optimization. Stress and strain are recovered for statics, frequency response and random response. Grid stresses are recovered for statics and frequency response. The results can be printed in the output file and/or post processing files. Stress and strain of pyramid elements can be used in optimization through the DRESP1 entry.