Reliability bug

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madarshahian
Posts: 16
Joined: Thu Jun 08, 2006 3:17 pm
Location: University of California at San Diego
Contact:

Reliability bug

Post by madarshahian »

I believe that reliability analysis for version 2.5.0 has a bug. I have a code which works with 2.4.6 correctly but with current version of 2.5.0 gives me zero for displacement sensitivity with respect to E.
The code is as follows (simple cantilever beam with elastic section):
#------------------------------------------------------------
#simple model
#Units: N & m

set ee 200000000000.0;
set II 1e-05;

model BasicBuilder -ndm 2 -ndf 3;

reliability;

node 1 0.0 0.0;
node 2 1.0 0.0;

fix 1 1 1 1;

section Elastic 1 $ee 0.012 $II;
geomTransf Linear 1;

#element dispBeamColumnWithSensitivity $eleTag $iNode $jNode $numIntgrPts $secTag $transfTag <integration method>
element dispBeamColumnWithSensitivity 2 1 2 5 1 1;

parameter 1 -element 2 E

timeSeries Linear 1;
pattern Plain 1 1 {
load 2 0.0 1.0 0.0;
}

recorder Node -file enddisp.txt -node 2 -dof 2 disp;
recorder Node -file ddmdisp.txt -node 2 -dof 2 "sensitivity 1";

system BandGeneral;
test NormDispIncr 1.0e-12 50 1;
constraints Transformation;
integrator LoadControl 1;
algorithm Newton;
numberer RCM;

sensitivityIntegrator -static
sensitivityAlgorithm -computeAtEachStep

analysis Static
analyze 1;

wipe;
wipeReliability;
#------------------------------------------------------------
madarshahian
Posts: 16
Joined: Thu Jun 08, 2006 3:17 pm
Location: University of California at San Diego
Contact:

Re: Reliability bug

Post by madarshahian »

I am wondering if OpenSees confirms this bug? Or maybe using new version I missed something?
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