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General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.

Extracting BEAM188 Stresses and Strains at all section nodes

    • esbenn
      Subscriber

      Hello, I'm working on a project where I need to extract all of the possible stress and strain information from the section nodes of a BEAM188 element, namely the section nodes around the inner and outer circumference of a CTUBE type cross-section at the I and J nodes of the BEAM188 element. I've set up my element settings with keyopt(3) = 3 (for cubic interpolation) and keyopt(4) = 2 (for shear and transverse forces). So far, I've successfully done this using the PRESOL command, which yields the text shown below when a single element is selected. I can then parse the text externally to extract out the stresses and strains I need. However, this method is slow and requires lots of text parsing, which isn't ideal. Are there any other ways to extract the same level of detail for BEAM188 element results? 

      PRESOL Output:

       PRINT S    ELEMENT SOLUTION PER ELEMENT
       
        STRESSES AT BEAM SECTION NODAL POINTS
       
       ELEMENT =         8  SECTION ID =      4300
       
       ELEMENT NODE = 30          
       
           SEC NODE        SXX          SXZ           SXY      
              1        0.39636E+007 -0.49251E+007  -35872.     
              3        0.48702E+007 -0.48112E+007 -0.12675E+006
             12        0.50737E+007 -0.35775E+007  0.37684E+007
             10        0.41334E+007 -0.36960E+007  0.37783E+007
             13        0.11258E+007 -0.16764E+007 -0.19316E+007
             15        0.14675E+007 -0.16065E+007 -0.21982E+007
             24        0.19589E+007  0.24750E+006  0.31945E+007
             22        0.15356E+007   70047.       0.31316E+007
             25       -0.27178E+007   70047.       0.63369E+006
             27       -0.31411E+007  0.24750E+006  0.19946E+006
             36       -0.26496E+007  0.51133E+006  -80356.     
             34       -0.23079E+007   89866.      -0.16531E+006
             37       -0.53155E+007 -0.19297E+007  0.20121E+007
             39       -0.62559E+007 -0.14597E+007  0.16506E+007
             48       -0.60523E+007 -0.18162E+007 -0.12675E+006
             46       -0.51457E+007 -0.24273E+007  -35872.     
       
           Max=        0.50737E+007  0.51133E+006  0.37783E+007
       
           Min=       -0.62559E+007 -0.49251E+007 -0.21982E+007
       
       ELEMENT NODE = 40          
       
           SEC NODE        SXX          SXZ           SXY      
              1        0.15983E+008 -0.49251E+007  -35872.     
              3        0.19282E+008 -0.48112E+007 -0.12675E+006
             12       -0.46349E+007 -0.35775E+007  0.37684E+007
             10       -0.39637E+007 -0.36960E+007  0.37783E+007
             13        0.26221E+008 -0.16764E+007 -0.19316E+007
             15        0.31558E+008 -0.16065E+007 -0.21982E+007
             24       -0.26183E+008  0.24750E+006  0.31945E+007
             22       -0.21935E+008   70047.       0.31316E+007
             25        0.20753E+008   70047.       0.63369E+006
             27        0.25001E+008  0.24750E+006  0.19946E+006
             36       -0.32740E+008  0.51133E+006  -80356.     
             34       -0.27403E+008   89866.      -0.16531E+006
             37        0.27815E+007 -0.19297E+007  0.20121E+007
             39        0.34528E+007 -0.14597E+007  0.16506E+007
             48       -0.20464E+008 -0.18162E+007 -0.12675E+006
             46       -0.17165E+008 -0.24273E+007  -35872.     
       
           Max=        0.31558E+008  0.51133E+006  0.37783E+007
       
           Min=       -0.32740E+008 -0.49251E+007 -0.21982E+007



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