Hi, To export for example stresses from an analysis to a punch file, I would add something like: STRESS (PUNCH) = ALL or STRESS (SORT1, PUNCH) = ALL or STRESS (SORT1, PUNCH, VONMISES) = ALL In my resulting.pch file I get: $TITLE = 1 $SUBTITLE = 2 $LABEL = AUTODESK NASTRAN 3 $ELEMENT STRESSES 4 $REAL OUTPUT 5 $SUBCASE ID = 1 6 $ELEMENT TYPE = 15 QUAD 7 2 0.00000E+00 -5.00000E-01 8 -CONT- 4.37500E+03 4.81250E+03 9 -CONT- -1.99020E-05 -8.42188E+01 10 -CONT- 4.81250E+03 4.37500E+03 11....30 more lines..... -CONT- 1.14355E+01 2.75000E+01 48 -CONT- -4.62500E+03 -4.62500E+03 49 -CONT -4.87500E+03 50 3 0.00000E+00 -5.00000E-01 51 -CONT- 4.75000E+03 4.81250E+03 52 -CONT- -3.26907E-05 -8.81641E+01 53 So from what I understand, for element number 2, I get 42 lines with 2 values in each line = 84 values. How do I know what those values represent? (the element is CQUADR) I thought the punch file structure and format is similar for all Nastran software. In the user guide of NX Nastran there are some sample outputs of punch data, and it is structured very differently than what I get from Autodesk Nastran.

Is there a guide/reference to understand the punch file data from Autodesk Nastran? Does this also exist for the representation of data in the.op2 files?

High-speed Drivers With 1-click. Hi Marko, Unfortunately we do not have any documentation on the organization of the PCH file. The output should be similar to MSC Nastran, not sure how much NX might differ. Unfortunately I could not find any MSC documentation on the PCH file.

But I do have a workaround. It will require you to run the analysis twice.

Apr 27, 2004 Hi I've ran a random vibration analysis (sol 111) and I have made an element stress punch file (ELSTRESS(SORT2,PUNCH,REAL)), but when I open the file. Nastran >Forum >Library Management System Ppt Presentation Free Download on this page. Punch file data structure. Mark Topic as Read. The order of the results in the OUT file will match the order of the results in the PCH file. Subject: Re: Reading Nastran.pch files Newsgroups: gmane.comp.gnu.octave.devel. As usual, for the sake of quality and neat user experience (read. .PCH File Extension File Type 1 Nastran Punch Output. Output file created by MSC Nastran. The contents of the PCH file created from this card would consist of.

Lotus Elise Soft Top Replacement here. Once using STRESS(PRINT) and the other with STRESS(PUNCH). The PRINT command will put the results in the *.OUT file and it will be labeled. The order of the results in the OUT file will match the order of the results in the PCH file, though the columns will differ. I have an example of CQUAD4 matching the NX Nastran documentation.

NASTRAN punch file parser parser of NASTRAN punch files.