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Does OpenSees have Pre and Post Processors which provide Graphical Interface for the users?

Thanks for your reply. However my displacement increments are not uniform. All 6000 increments are different. I have emailed you the txt file separately.

Thanks for your reply Silvia. I am trying to analyze some coulmns tested under pseudo dynamic loads. For this I have to apply 6000 displacement increments to my column model during the analysis. Is it possible to associate these 6000 displacement increments from a .txt file to the DispacementControl...

Is it possible to analyze members tested under reversed cyclic loads using DisplacementControl command. DisplacementControl allows us to apply only one displacement increment. How can we apply a displacement history using DisplacementControl command?

Arghadeep Laskar.
University of Houston

I browsed through the forum and could not find any topic giving the exact answer to my question. Could you please let me know if you know someone who is an expert in this topic and can help me out?

Thank you for your reply. Could you please tell me if it is possible to perform analysis using DisplacementContol in OpenSees along with the ArcLength Scheme? If yes, please let me know how it can be done? Do we need to simultaneously use the two integrators in that case: i.e first Integrator Displa...

Has this question been answered in this forum before?

I checked the source code for DisplacementControl Integrator on OpenSees. The description of DisplacementControl Integrator given in the code is as follows: // Description: This file contains the class definition for DisplacementControl. // DisplacementControl is an algorithmic class for perfroming ...

I am using the 4 Noded Quad elements in my analysis.
I need to record the stresses and strains at the 4 nodes of the element in an output file. Is it possible to do so using the recorder command in Opensess.

If yes, can somebody give the tcl/tk command statement for the above.

Is the arc length scheme implemented in the DisplacementControl Integrator in OpenSees?

If so what is the difference between the Integrators DispacementControl and ArcLength available in OpenSees.

Here is the relevant part of the code: # ------------------------------ # Start of analysis generation # ------------------------------ # Create the constraint handler constraints Plain puts "constraints Plain Done!" # Create the DOF numberer numberer Plain puts "numberer Plain Done!&...

I removed the initialize command.

I also matched the order of commands with that given in the file Ex1b.Portal2D.Push[1].tcl in the examples manual.

However I am still getting the error message.

Laskar.

Silvia thanks for your prompt replies.

I inserted print commands at different positions of my input file. After running the input file I find that it runs upto the command:
analysis static

and stops at the command:
initialize...

could you please tell me the cause for this.

thanks again.
laskar.

Thanks for you reply.
I am not using any Tk graphics
How can I find out which command is breaking the execution.

laskar..

I am getting the following error message when I try to run some tcl/tk input files using opensees.exe:
"child killed: segmentation violation"

could anyone tell me the probable cause of this error.
laskar