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Please help troubleshooting PCOMPG entry

I have created two PCOMPG entries and I am getting an error during analysis. I am posting the details below:

 

*** USER FATAL MESSAGE 316 (IFPDRV)
     ILLEGAL DATA ON BULK DATA ENTRY PCOMPG  
     User information:
     See Bulk Data entry description in Section 5 of the NX NASTRAN
     Quick Reference Guide. If you are using the large field format make
     sure the number of entries is even.
 PCOMPG         1              0.            STRN                        +0000001
 +0000001      23       1  .00375     45.     YES                        +0000002
 *** USER FATAL MESSAGE 316 (IFPDRV)
     ILLEGAL DATA ON BULK DATA ENTRY PCOMPG  
     User information:
     See Bulk Data entry description in Section 5 of the NX NASTRAN
     Quick Reference Guide. If you are using the large field format make
     sure the number of entries is even.
 PCOMPG         2              0.            STRN                        +000000E
 +000000E       1       1   .0055     45.     YES                        +000000F

The above is from F06 file.

 

$ Femap with NX Nastran Property 1 : Skin Lay Up Property
PCOMPG         1              0.            STRN                        +       
+             23       1  .00375     45.     YES                        +       
+             24       1  .00375    -45.     YES                        +       
+             25       1  .00375      0.     YES                        +       
+             26       1  .00375     90.     YES                        +       
+             27       1  .00375    -45.     YES                        +       
+             28       1  .00375     45.     YES                        +       
+             29       1  .00375     45.     YES                        +       
+             30       1  .00375    -45.     YES                        +       
+             31       1  .00375     90.     YES                        +       
+             32       1  .00375      0.     YES                        +       
+             33       1  .00375    -45.     YES                        +       
+             34       1  .00375     45.     YES                        
$ Femap with NX Nastran Property 2 : Stiffener Lay Up Prop
PCOMPG         2              0.            STRN                        +       
+              1       1   .0055     45.     YES                        +       
+              2       1   .0055    -45.     YES                        +       
+              3       1   .0055      0.     YES                        +       
+              4       1   .0055      0.     YES                        +       
+              5       1   .0055     90.     YES                        +       
+              6       1   .0055     90.     YES                        +       
+              7       1   .0055      0.     YES                        +       
+              8       1   .0055      0.     YES                        +       
+              9       1   .0055    -45.     YES                        +       
+             10       1   .0055     45.     YES                        

The above is the PCOMPG entries from dat file.

 

I did check up on PCOMPG Section 5 on NX Nastran QRG and I am not able to figure out where I went wrong.

 

Any help would be appreciated.

 

Thx

2 REPLIES

Re: Please help troubleshooting PCOMPG entry

You have a Failure Theory specified, Max Strain, in your Laminate Properties, which causes FEMAP to write STRN in the FT field of the PCOMPG entries. Because of this, you also need to specify a value for BndShr Allow in your Laminate Properties, which will then write a value to the SB field on the PCOMPG entries.  Please refer to the PCOMPG entry in the NX Nastran Quick Reference Guide for additional information.

Re: Please help troubleshooting PCOMPG entry

Thx AHaines.

 

Should have paid more attention while reading QRG I guess. I thought specifying Bond Shear Allowable is only required for stress based Failure Theories. 

 

Thx for pointing it out. I appreciate it.