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eval function worked. That's awesome.

Thanks Vesna for your help.

In the following command for block3D, the coordinates of eight corner nodes from 1 to 8, can NOT be variable! I mean the coordinates must be just numbers. It is very bothering that you can not define variable for the coordinates. Does any body have any solution for this thing? block3D $nx $ny $nz $e...

Thanks.

two node link has got an option for defining the local axes of the two node link. this option is "<-orient <$x1 $x2 $x3> $y1 $y2 $y3> " you should use this option to define the local axes. refer to this: http://opensees.berkeley.edu/wiki/index.php/Two_Node_Link_Element element twoNodeLink $eleTag $i...

Does any body know how to model a pendulum in OpenSees?
I know that pendulum is a mechanism not a structure, but maybe there are some tricks to model a pendulum.

Thanks,

LAPACK error means that there are errors in your modeling.
For example, not having enough fix supports, having hanging nodes, element-connectivity problems, ..

check out this post:

http://opensees.berkeley.edu/community/ ... =2&t=35378

I have used the "uniaxialMaterial SelfCentering" for modeling of SMA, and it works great.

your model has a problem with stability, or you have some hanging nodes (connected to no element) in your code, or you do not have enough restraints or fix nodes. LAPACK error means that your modeling and connectivity of elements has a problem. You should check your code and play around with that to...

May you please send the Makefile.def for Ubuntu 12.04 LTS.
I would be grateful.

I used ElasticPPGap material for cyclic lateral loading with making use of displacement-controlled analysis. At first, my integrator was DisplacementControl, but the DisplacementControl integrator seems to have some problems with the materials that have a zero slope in plastic regions such as Elasti...

Hello, May you help me, please. In the following code, when I change the yield force of ElasticPPGap to a non-zero value, the code does not work. But when yield force of ElasticPPGap is zero, it works perfect. Below, there is the modeling section of the code. I am very grateful for your time and con...

shell element should be used with this type of model:

model basic -ndm 3 -ndf 6;


but brick element should be used with this type of model:

model basic -ndm 3 -ndf 3;


I think thats why your model is incorrect.

FYI: With regard to the below command: integrator DisplacementControl $node $dof $incr < $numIter $ΔUmin $ΔUmax > ; Assume that we have this code: #----------------------------------------------------------------------------- set node 25 ; set dof 1 ; set incr 0.01 ; set target 5.0 ; # cm integrator...

Thanks Vesna.

Hi,

Do you know if we can push several nodes (NOT only one node), in cyclic pushover analysis. I would be grateful if you answer.

Thanks,