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Hi Frank, I want to do it because just imagine that you need to have the initial stress field on the ground. You don't want to have any displacements because at the present moment the ground is already in the position after the gravity displacements took place. So you need to begin the analysis afte...

I would like to ask which is the best way to make the displacements at all nodes equal to zero, after the initial gravity analysis (for instance, for a soil model), while keeping the stresses and strains from the previous analysis. So basically I just want to have all the nodes displacements zero, w...

I used the -xml instead of -file extension in the recorder and I confirmed it is sxy. I have another question which is related: In what concerns the pwp output, it comes with two columns for each node (pwpx, pwpy), but I only have one pwp dof (ndf=3). The 2nd column for each node (pwpy) in this case...

Hi, I would like to know what the columns in the stress and strain output files mean, when doing a 2D analysis (ndm=2, ndf=3). I only have 3 columns (apart from the 1st which is time). My question is mainly about the last column. stress: 1st column time, 2nd column sxx, 3rd column syy 4th column sxy...

Hi, I'm using a transient analysis, so I'll just create a plain load pattern as you say and divide it by the 2 free nodes of the 4 node element.

Thanks for your help

Hi,

I want to apply a cyclic shear stress with an amplitude of 70kPa to a simple 1 element model. How should I do that?
I tried using:
pattern UniformExcitation 1 1 -accel "Sine 0 1000 $period -factor 35" with shear stress instead of accel but it isn't possible.

Thank you

For examples 6, 7 and 11 I removed the dT option or changed the value of dT to 0.009999999 but the output files keep missing the last lines. It's really strange because it stops writing at the middle of one of the last lines and then the following lines are missing. The link for all the examples is:...

Hi, In examples 6, 7 and 11 where, for instance, the following is used to record displacements: eval "recorder Node -file allNodesDisp.out -time -node $nodeList -dof 1 2 3 -dT 0.01 disp" the output files miss the last lines. Can you explain me why this might be happening and what should I ...

Thanks for the answer, now it works fine.

I was trying to reproduce this example but when I create the load pattern (set accelSeries "Series -dt $dt -filePath BM68elc.acc -factor 1"; pattern UniformExcitation 2 1 -accel $accelSeries) I get the following error: expected integer but got "-dt" Could you explain me why this ...