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Recent content by Antonio22

  1. Antonio22

    connection panel with mullions and transoms

    Hi everyone. How i can connect panel of a curtain wall with mullions and transoms? I use "link" t oconnect them, but i don't know if it is correct. And above all, what characteristics should have these "links"? Thx in advance.
  2. Antonio22

    Elevate axial force

    Hi everyone, I think I have a problem with a facade model. Behind the facade there are three beams: the one at the bottom is fixed, the other two are free. I applied a displacement to these two beams. As a result, I conducted a time-history analysis. In practice, I applied time histories to the...
  3. Antonio22

    Time history in a node with Robot Structural Analysis

    Yes, I know how I apply a lod in a node, ora in a point. The problem is that I need to apply a time history in a node/point.
  4. Antonio22

    Time history in a node with Robot Structural Analysis

    I already see the manual and the viedo tutorials.
  5. Antonio22

    Time history in a node with Robot Structural Analysis

    I've already seen this video. I know how I do a time history analysis. My problem is that I don't know how I can applicate the function time history in a exact node.
  6. Antonio22

    Time history in a node with Robot Structural Analysis

    Hi everyone! I have recently started using Robot Structural Analysis software. I have a problem with an analysis that I need to perform. I would like to know if it is possible to apply a time history to any node of my structure. If you need more details, just ask Thx in advance!
  7. Antonio22

    sym in matlab

    I have a problem to find the function to minimize! I insert a picture for example. https://files.engineering.com/getfile.aspx?folder=383833c2-6e73-4b51-97a0-93e2b1248c3e&file=Cattura.PNG
  8. Antonio22

    sym in matlab

    I need a symbolic solution ( a symbolic function)in order to optimize symbolic parameters!! My problem is that the fitness fuction is very complicated to derive, and it comes out of many operations with unknown variables!!
  9. Antonio22

    sym in matlab

    Hi everyone! I'm new to using matlab and I have a problem!! My objective is to find a function in 4 variables and solve an optimization problem (minimizing the function). So i used the command "Sym" to define the variables, but for calculate this function, i need to calculate the eigenvalues...
  10. Antonio22

    abaqus isoparametric elements

    Hi! I found the error!! Thx you all! But I have another quest! Is there a way to derive the connectivity matrix from abaqus?
  11. Antonio22

    abaqus isoparametric elements

    Good afternoon, i found the error. I insered twice the value of the force! Now i obtained 5E-7 m! Back to my case I had model in the same way my plate! I had already sheare the file mathematica where i calculated the stiffness matrix and the displacement. If you want i Will share also the file...
  12. Antonio22

    abaqus isoparametric elements

    My result is 1E-8 as you can seen in the file attached in this post.https://files.engineering.com/getfile.aspx?folder=ef7ea9c1-edae-4f5e-b9df-8dd52a0a54c0&file=Cattura.PNG
  13. Antonio22

    Shell 2D

    Hi everyone!! Can anyone control the displacement that i calculate for a shell 4m x 4m x 0.1m? I consider them fixed at one edge and subject at the two opposite corner a force of 1000 N in the x direction. I divided the shell into 4 isoparametric elements. I share the mathematica file. All...
  14. Antonio22

    abaqus isoparametric elements

    I've already done this verification and displacement are different. Recently using Abaqus, I will list the steps I have taken for the model in question: I modeled the plate like a "2D planar,deformale, shell". Afetr I defined the material, the section (Solid, Homogeneus, with my thickness). I...
  15. Antonio22

    abaqus isoparametric elements

    I consider a plate 2x2 (m) on abaqus with only one element and the stiffness matrix is already different from that on Mathematica!! But i don't understand where is the possible error!!
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