Search found 109 matches

by bayram_aygun
Tue Mar 17, 2009 6:47 am
Forum: Soil Modelling
Topic: PressureDependMultiYield materal
Replies: 2
Views: 4745

go to online OpenSees manual and then find your material in INDEX
by bayram_aygun
Wed Nov 12, 2008 1:53 pm
Forum: Framework
Topic: Linux-compatible OpenSees version 2.0
Replies: 3
Views: 5189

In that case, it doesn't seem easy for me to use OpenSees in our cluster.

Thanks Frank,
by bayram_aygun
Wed Nov 12, 2008 12:54 pm
Forum: Framework
Topic: Linux-compatible OpenSees version 2.0
Replies: 3
Views: 5189

Linux-compatible OpenSees version 2.0

Hi, I am trying to use a large computer cluster,named Ada, at Rice University. "Ada" is running SuSE 9.0 Linux and the 2.6.5 kernel, with small changes made by Cray, particularly for their RapidArray interconnect. The IT guys over here need a Linux-compatible OpenSees version. Where can I ...
by bayram_aygun
Mon Nov 10, 2008 7:24 pm
Forum: Parallel Processing
Topic: OpenSees 2.0 Linux Version
Replies: 6
Views: 15269

Hi, I might try to use a large computer cluster,named Ada, at Rice University. "Ada" is running SuSE 9.0 Linux and the 2.6.5 kernel, with small changes made by Cray, particularly for their RapidArray interconnect. I have never compiled and debugged a very large C/C++ program before and I d...
by bayram_aygun
Sat Nov 01, 2008 12:18 pm
Forum: OpenSees.exe Users
Topic: Participation Factors For a Bridge-Ground-Foundation System
Replies: 2
Views: 3776

Thanks a lot. Let me read through this document and I hope I'll gain some theoretical insight and reassurance about what I have experimentally observed :)
by bayram_aygun
Fri Oct 31, 2008 6:42 pm
Forum: OpenSees.exe Users
Topic: Participation Factors For a Bridge-Ground-Foundation System
Replies: 2
Views: 3776

Participation Factors For a Bridge-Ground-Foundation System

Hi, I have a 2D bridge-soil-pile foundation model in OpenSees. I can get the eigen file which has the mode shapes and the mass matrix which has all the nodal masses along their DOFs. Somehow when I apply the ordinary structural dynamics rules to get the mass participation factors, I don't seem to ge...
by bayram_aygun
Fri Oct 31, 2008 10:05 am
Forum: Soil Modelling
Topic: damping curve
Replies: 4
Views: 7761

1) You might want to email Zhaohui Yang (zhyang@ucsd.edu) Ahmed Elgamal (elgamal@ucsd.edu) to inquire about this. 2) You can also try to look at the "opensource" soil program DEEPSOIL <http://cee-zzvy.cee.uiuc.edu/Website/Deepsoil/> to find out whether there is a way for you to get to &quo...
by bayram_aygun
Thu Oct 16, 2008 10:22 am
Forum: OpenSees.exe Users
Topic: Effective modal Masses
Replies: 8
Views: 10184

Hi, I'm attaching two links which will have explanatory notes on how I tackle the mass participation factor issue in OpenSees. Most of the codes are NOT written by me and I have to admit that the codes might have to be modified according to your individual needs. www[dot]owlnet.rice.edu/~ba2/Modal_A...
by bayram_aygun
Fri Sep 05, 2008 10:21 am
Forum: Soil Modelling
Topic: element quad
Replies: 6
Views: 8094

Hi, This is briefly what I know about SSI (Soil-structure-interaction): Kinematic SSI ==> Assign mass to the structure, assign mass to the PDMY, don't assign mass to soil quad elements. Inertial SSI ==> Assign mass to the structure, assign mass to the PDMY, assign mass to soil quad elements. That wa...
by bayram_aygun
Thu Sep 04, 2008 12:55 pm
Forum: Soil Modelling
Topic: element quad
Replies: 6
Views: 8094

Gomez, Please take a look at this post. I'm sure it will clarify some questions for you. <http://opensees.berkeley.edu/community/viewtopic.php?t=4845&highlight=quad+density&sid=795335ff34a3bae9faca49aafd7ac5e6> Good Luck, P.S: For the future, I strongly suggest that you first search for the ...
by bayram_aygun
Fri Jul 11, 2008 8:53 am
Forum: Soil Modelling
Topic: recorders
Replies: 2
Views: 4431

You may need to contact the authors of that specific material.

Good Luck,
by bayram_aygun
Mon Jul 07, 2008 3:58 pm
Forum: Soil Modelling
Topic: Pore Pressure Ratio Monitoring ?
Replies: 3
Views: 8425

Hi everybody, I'm trying to validate my OpenSees soil column model with Cyclic1D (<http://cyclic.ucsd.edu/>) but I'm getting inconsistent results. To be more clear, pore pressure ratios in clay layer are similar whereas loose sand pore pressure ratios are different. Cyclic1D shows that my soil layer...
by bayram_aygun
Fri Jul 04, 2008 9:28 am
Forum: OpenSees.exe Users
Topic: View the mode shape of an eigen analysis
Replies: 25
Views: 24818

The computer I'm using is a 32bit, dual core computer with Windows XP. I doubt that memory is going to be a problem (1.95GB of RAM).

What else can be the problem?
by bayram_aygun
Thu Jul 03, 2008 8:52 pm
Forum: OpenSees.exe Users
Topic: View the mode shape of an eigen analysis
Replies: 25
Views: 24818

I was using OSP to visualize my bridge-foundation-soil model but I don't feel comfortable with the mode shapes I'm getting with OSP, so I turned to the viewing codes Silvia posted here. I'm using the latest version (v2.0.0) and I'm able to run the procedures without getting an error, BUT when the fi...