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resulting bending moment and cutting beam188 element

  • Thread starter Thread starter Daniele.96
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Daniele.96

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Good morning.
I am preparing a masterful thesis in mechanical engineering on the mechanical behavior to cyclic plasticity of a cellular structure and I am using the ansys mechanical apdl program. First of all, as a first step, I am interested in studying the structure in the elastic field. Before going to study this structure with 3d elements, I started using the beam188 element. the problem is that I would like to see for the beam188 element the graphs of the result of the bending moment and the resulting of the cut. I looked at ansys' help for that element and saw that you can view the graphs of the m_y bending moment and the m_z bending moment separately (where y and z are referred to the local reference system of the element) using the smisc command and the same goes for cutting. to me however it interests to view the carrier sum m_y+m_z e t_y+Organisation in order to immediately understand what is the point of the most stressed beam to bending, which is difficult if ansys mi plotta m_y and m_z separately.
 
if you can analyze the loads and make the problem plan. in case it was not a problem plan, it is not said that the maximum cutting and the maximum of the moment are at the same point and this would mean having different s.d.r. to plot the graphs.

If you want to see what is the most solicited point, since you use the beam 188, you can plot a vonmises to identify the point, then enter the moment diagrams to extract the value of the same.

the influence of the cut should be marginal compared to that of the moment for a classic beam.
 
if you can analyze the loads and make the problem plan. in case it was not a problem plan, it is not said that the maximum cutting and the maximum of the moment are at the same point and this would mean having different s.d.r. to plot the graphs.

If you want to see what is the most solicited point, since you use the beam 188, you can plot a vonmises to identify the point, then enter the moment diagrams to extract the value of the same.

the influence of the cut should be marginal compared to that of the moment for a classic beam.
Thanks for the answer. the problem is that the case in analysis cannot be traced back to a flat case. to me, however, it interests to plot the charts of the result of the moment and the charts of the resultant of the cut separately and therefore I should find the way to sum vectorally m_x+m_y to get the result of the moment and t_y+Organisation to find the resulting cut and then plot these results separately. now I would have found a way to proceed, but I'm not sure to get me the resulting carrier. we take as an example the moment:
to get myi (the moment in y al nodo i of the beam188) element use smisc,2. to get myj (the moment in y al nodo j of the beam188) smisc,15. to get mzi use smisc,3. to get mzj use smisc,16. then to get the resulting carrier I do:
general postproc-element table-add items and the curtain that opens up myi and mzi and I call this sum mtoti. I then refer to the same procedure, but this time I dig myj and mzj and call this sum mtotj. then on general postprocessor-plot results- contour plot- line elem res from the menu that opens I choose to plot mtoti and mtotj. Is this procedure right? get the chart of the resulting vector sum of m_e and m_z?
Thanks again for the availability.
 

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