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dear OpenSees Group

As I have mentioned, recently a new element "element ModElasticBeam2d " has been added to OpenSees framework. However, in the explanation of this element, it is noted that this element is for modeling an elastic one with two springs at the ends. The question is: How should this element incorporate nonlinear behavior? Is this element solely for the elastic part while the two (or one) end springs should be separately modeled as zero-length elements?

Thank you very much for your concern

Thank you dear fmk. By adding the "remove recorders" command before the aforementioned line reading command, the problem was solved.

Dear opensees group

I dont know if I can call it a bug! or there are some problems I am not aware of. I had made a post-processing program through opensees 2.1.0 in which every line of a recorder text-file corresponding to a zero length element in dynamic analysis was meant to be read, however when I upgraded to the version 2.2.2.g, the interpreter didnt read lines to the end of the file and after reading 1923 lines (out of 1967), it jumps out of the reading-loop. It should be noted that in the former version the interpreter successfully reads all the lines to the end. Here is the command that I used to read the lines:

set infileID [open data/ZerolengthFor17.out r]
foreach line [split [read $infileID] \n] {
if {[llength $line] != 0} {
incr m
set help $line
set force(17,$m) [lindex $help 3]}
}
close $infileID


I am seeking your help
Thank you

Hi

I have encountered a problem in getting a damage recorder for a zero-length element. The recorder i wrote is:
recorder ElementDamage 31 -file data/damage1.out -dof 3 -damage 50

But this was written on the screen as a result of the analysis:
WARNING recorder ElementDamage: Section keyword not specified 0.6

As a guess I tried to add a sectionID:
recorder ElementDamage 31 -file data/damage1.out -section 1 -dof 3 -damage 50

and this was displayed on the screen:
DamageRecorder::DamageRecorder - out of memory creating deformation response

would you please help me with that?

Thanks for your attention

Hi

I think for accurate modeling of structural response, reliable and comprehensive solution algorithm is required. Thus, as a user I look for a powerful solution algorithm tcl source.

Thank you

Dear all

Would you please introduce me some input files including strong convergence solution algorithms other than what is proposed in Example files (either for static nonlinear or dynamic nonlinear analysis)?
I have created some models based on concentrated plastic hinge and I expect pushover curves to continue completely in the softening branch until base shear becomes zero.

Thanks for your concern
E.Fereshtehnejad

Dear all.

Does anyone know if there is any recorder for a JOINT2D element?

TNX