QUESTION:
I need to extract the reaction force FX of some nodes fixed using D,node#,UX in an LS-DYNA model. I tried RFORCE command in POST26 but the generated variable was shown to be "invalid". How can I obtain an xy plot of the reaction force vesus time in POST26?
ANSWER:
Before solving, you need:
EDOUT,RCFORC
Then, in POST26, do, for example, the following:
FILE,,HIS
EDREAD,2,SPCFORC,25
This will read node 25 x, y, and z reaction forces into POST26 variables 2, 3, and 4, respectively. Plot the reaction forces vesus time using PLVAR,2,3,4.
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QUESTION: I need to extract the reaction force FX of some nodes fixed using D,node#,UX in an LS-DYNA model. I tried RFORCE command in POST26 but the generated variable was shown to be "invalid". How can I obtain an xy plot of the reaction force vesus time in POST26? ANSWER: Before solving, you need: EDOUT,RCFORC Then, in POST26, do, for example, the following: FILE,,HIS EDREAD,2,SPCFORC,25 This will read node 25 x, y, and z reaction forces into POST26 variables 2, 3, and 4, respectively. Plot the reaction forces vesus time using PLVAR,2,3,4. |
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