Search found 13 matches

by igidaris
Tue Oct 21, 2014 9:59 am
Forum: OpenSees.exe Users
Topic: Triple Friction Pendulum Element does not work
Replies: 0
Views: 1745

Triple Friction Pendulum Element does not work

Hi all I want to use the Triple Friction Pendulum Element developed by Nhan D. Dao. So I am trying to familiarize myself through the posted examples, however it seems that the element does not work. The error message that I get is: "OPS_GetDoubleInput--error reading 20 WARNING error reading ele...
by igidaris
Thu Oct 17, 2013 7:44 am
Forum: Parallel Processing
Topic: Error message in Parallel: "child killed:unknown signal"
Replies: 1
Views: 4750

Error message in Parallel: "child killed:unknown signal"

Hi all I am trying to use Opensees in parallel. So after following the instructions (http://opensees.berkeley.edu/wiki/index.php/Parallel_Processing) for installing MPICH2 and testing by executing the example cpi, then I tried to run Opensees in parallel. However I get the following error message: &...
by igidaris
Wed Oct 16, 2013 11:23 am
Forum: Parallel Processing
Topic: Errors in Parallel Processing
Replies: 7
Views: 9758

Re: Errors in Parallel Processing

Hi Reagan I have the same problem as you had : cpi.exe works but when I try to use mpiexec with opensees (e.g: mpiexec -np 4 OpenSeesMP test.tcl) I get the error msg :"Child kiled:unknown signal". I tried to remove my credential using mpiexec -remove and then restore them using mpiexec -re...
by igidaris
Wed Feb 22, 2012 11:04 am
Forum: OpenSees.exe Users
Topic: Modelling force capacity of fluid viscous damper
Replies: 4
Views: 3683

Re: Modelling force capacity of fluid viscous damper

Vesna

Thank you for your reply!
I know these two materials. My question is how can I model the force capacity of a damper, since I think that with these materials we cannot model the saturation of the damper force, right?
by igidaris
Mon Feb 20, 2012 11:49 am
Forum: OpenSees.exe Users
Topic: Modelling force capacity of fluid viscous damper
Replies: 4
Views: 3683

Re: Modelling force capacity of fluid viscous damper

Anyone that can help please?
by igidaris
Mon Feb 13, 2012 10:20 am
Forum: OpenSees.exe Users
Topic: Modelling force capacity of fluid viscous damper
Replies: 4
Views: 3683

Modelling force capacity of fluid viscous damper

Hi I would like to ask how I can model the saturation of the damper force after it reaches the force capacity of the damper. As far as I know by using the viscous material when the strain rate increases the stress keeps increasing linearly (if alpha=1) or non-linearly (if alpha is not equal to 1). H...
by igidaris
Thu Jan 26, 2012 10:52 am
Forum: OpenSees.exe Users
Topic: Global force element recorder`
Replies: 2
Views: 2355

Re: Global force element recorder`

Thank you vesna!
by igidaris
Fri Jan 20, 2012 9:42 am
Forum: OpenSees.exe Users
Topic: Global force element recorder`
Replies: 2
Views: 2355

Global force element recorder`

Hi

I would like to ask if the global force element recorder includes both the viscous forces and the restoring forces (i.e. the forces produced because of the stiffness of the element) or just the stiffness forces?

Thank you very much in advance!
by igidaris
Mon Nov 21, 2011 7:52 am
Forum: OpenSees.exe Users
Topic: Error when using different time step dt of ground motion
Replies: 0
Views: 1504

Error when using different time step dt of ground motion

I am getting the following error message: "WARNING invalid dt -filePath- Series -dt dt ... alloc: invalid block: 0101C708: a8 1 This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. job aborted: rank:nod...
by igidaris
Wed Nov 16, 2011 9:34 am
Forum: Parallel Processing
Topic: Error when using different time step dt of ground motion
Replies: 2
Views: 5727

Re: Error when using different time step dt of ground motion

Anyone that can help in this problem???!

It has been a while since I posted this topic!!!!

Any help or advice would be greatly appreciated.

Thank you very much in advance!!!
by igidaris
Sun Nov 13, 2011 9:32 pm
Forum: Parallel Processing
Topic: Error when using different time step dt of ground motion
Replies: 2
Views: 5727

Error when using different time step dt of ground motion

I am getting the following error message: "WARNING invalid dt -filePath- Series -dt dt ... alloc: invalid block: 0101C708: a8 1 This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. job aborted: rank:nod...
by igidaris
Sun Sep 11, 2011 6:34 pm
Forum: OpenSees.exe Users
Topic: Problem installing Tcl/Tk executable
Replies: 4
Views: 4027

Problem installing Tcl/Tk executable

Hi I have problem installing Tcl/Tck in my computer. I have windows a 7 64-bit machine. I am following the instructions but while i am trying to install it i am getting the following error message: error copying "C:/Users/Giannis/Downloads/ActiveTcl8.5.10.0.294993-win32-ix86-threaded (3).exe/un...
by igidaris
Wed Jul 06, 2011 1:11 pm
Forum: OpenSees.exe Users
Topic: Inconsistency of periods of Example 5
Replies: 0
Views: 1291

Inconsistency of periods of Example 5

Hi, I have noticed something really weird in the "Example 5. 2D Frame, 3-story 3-bay, Reinforced-Concrete Section". The first three period of this model are : T1 = 0.43 sec T2 = 0.11 sec T3 = 0.06 sec. I wanted to check the effect of the gravity loads in the stiffness of the RC elements; t...