Tplot

TPLOT

The TPLOt Macro command allows you to specify quantities for output after each time step in a computation. The values are written to files whose name starts with the letter P followed with the problem file name and with an additional file name extender that is tagged to the quantity type, e.g. dis for any requested displacement, rea for any requested reaction forces, etc. See the [[Manuals|user manual}} for further details.

Examples

Generate force deflection plot files

Here is a simple example with a point force applied to a 2D plane strain square. It generates two files Pld.dis and Pld.rea which contain the displacement of the node where the load is applied and the reaction force at that node. The first column is each file is the time value and the second column is the requested quantity. If you specify multiple locations with TPLOt, then you will get additional columns in the Pld.* files.

FEAP ** Example Force versus Deflection plot with TPLOt **
0 0 0 2 2 4

! Define Material
MATErial
  SOLId
    ELAStic ISO  200d9 0.3d0

! Define geometry
BLOCk
  CART 10 10
  1 0.d0 0.d0
  2 1.d0 0.d0
  3 1.d0 1.d0
  4 0.d0 1.d0

! Fix left edge
EBOU
 1 0.d0  1 1

! Apply force on the corner
CFORce
  NODE  1.d0 1.d0  200.d0 0.0d0

END


! Set the wanted time histories for output
BATCh
  TPLO
END
DISP,,1,1.d0,1.d0
REAC,,1,1.d0,1.d0
SHOW


! Set a linearly increasing proportional load factor
BATCh
 PROP,,1
 DT,,1.0d0
END


! Loop 10 times and solve, output to Old and Pld.*
BATCh
  LOOP,,10
    TIME
    LOOP,,4
      TANG,,1
    NEXT
  NEXT
END


STOP