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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.

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...

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.

I already see the manual and the viedo tutorials.

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.

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!

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

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!!

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...

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

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...

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

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...

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...

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!!

Sorry i don't understant what do you mean by "pull it on one edge while fixing the other"

Yes, I share the code that I used to calculate the global stiffness matrix. The plate is 4X4 (m) and I divided it into four elements. https://files.engineering.com/getfile.aspx?folder=cf2fab21-d48b-4ce6-abf5-42c4b6e95e1d&file=Plate_elements_isoparametric2.nb

Hi everyone, i have a problem with the stiffness matrix generated by Abaqus! I have do a simple example: a plate in 2D dimension, subject to horizontal forces in the plane and stuck at one end. I resolved this problem in Wolfram Mathematica using isoparametric elements 4-node and i calculate the...