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How can i apply a thermal load using TEMP card plus a load on a grid using DAREA in SOL 111

How can i apply a thermal load using TEMP card plus a load on a grid using DAREA in SOL 111
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  • Are you intending the thermal load to oscillate sinusoidally?​  It will, as all applied loading in SOL111 will be treated as a sinusoidal excitation.  Also, there is a Remark in the Quick Reference Guide indicating for dynamic solutions, the use of TEMP loading will result in incorrect  element forces and stresses.
     
    Remark 10. Temperature loads cause incorrect element forces and stresses in all the dynamic analysis except SOL 400 nonlinear transient analysis with the elements having nonlinear capability.
     
    In any event, you can combine the TEMP loading and the point load using the DLOAD Bulk Data entry- have it point to RLOAD/DAREA and RLOAD/TEMP.  This should be tested to make sure it is doing what you want...  I have not used this combination before. 
     
    Here is a brief example:
     
    DLOAD,999,1.0,1.0,11103,1.0,11203
    $
    RLOAD1 11103  11105                  11106
    DAREA  11105  105    3      100.
    $
    RLOAD1 11203  100                    11106
    TEMPD,100,100.
    $
    TABLED1 11106
           0.     0.     10.    1.     2000.  1.     3000.  0.
           99999. 0.     ENDT
     
     
Reply
  • Are you intending the thermal load to oscillate sinusoidally?​  It will, as all applied loading in SOL111 will be treated as a sinusoidal excitation.  Also, there is a Remark in the Quick Reference Guide indicating for dynamic solutions, the use of TEMP loading will result in incorrect  element forces and stresses.
     
    Remark 10. Temperature loads cause incorrect element forces and stresses in all the dynamic analysis except SOL 400 nonlinear transient analysis with the elements having nonlinear capability.
     
    In any event, you can combine the TEMP loading and the point load using the DLOAD Bulk Data entry- have it point to RLOAD/DAREA and RLOAD/TEMP.  This should be tested to make sure it is doing what you want...  I have not used this combination before. 
     
    Here is a brief example:
     
    DLOAD,999,1.0,1.0,11103,1.0,11203
    $
    RLOAD1 11103  11105                  11106
    DAREA  11105  105    3      100.
    $
    RLOAD1 11203  100                    11106
    TEMPD,100,100.
    $
    TABLED1 11106
           0.     0.     10.    1.     2000.  1.     3000.  0.
           99999. 0.     ENDT
     
     
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