Search found 5881 matches

by fmk
Wed May 23, 2018 2:39 am
Forum: Framework
Topic: Debugging C++ (Visual Studio) source code with “.tcl” file
Replies: 1
Views: 1538

Re: Debugging C++ (Visual Studio) source code with “.tcl” fi

you have to build a debug version of OpenSees in VS as we do not release a debug version .. running the released version will not work as there is no data in the exe with which the debugger can use.
by fmk
Wed May 23, 2018 2:31 am
Forum: OpenSees.exe Users
Topic: Is there a faster way to restore the model's state?
Replies: 2
Views: 2679

Re: Is there a faster way to restore the model's state?

to what end are you storing the state! .. the only alternative would be to recompute from the start.
by fmk
Wed May 23, 2018 2:25 am
Forum: OpenSees.exe Users
Topic: Composite beam with concentrated plasticity
Replies: 3
Views: 1239

Re: Composite beam with concentrated plasticity

assuming you have nodes at the column line floor intersections. 1) add 2 duplicate nodes for the ele ends. 2) use equalDOF to connect nodes to existing nodes for the translational dof 3) add elastic beam between these 2 new nodes 4) add a bilin material for moment-rotation of the spring 5) add 2 spr...
by fmk
Wed May 23, 2018 2:21 am
Forum: OpenSees.exe Users
Topic: ShellDKGT
Replies: 10
Views: 7895

Re: ShellDKGT

a 4 node example should only have 1 element! .. the sript is running for me and produces the following when i do a print on 2 ele: DKGQ Non-Locking Four Node Shell Element Number: 653 Node 1 : 523 Node 2 : 524 Node 3 : 525 Node 4 : 526 Material Information : DKGT Non-Locking Three Node Shell Element...
by fmk
Wed May 23, 2018 2:15 am
Forum: OpenSees.exe Users
Topic: BaseLine
Replies: 5
Views: 1292

Re: BaseLine

the dt of the analysis and the steps in the Path times series do not have to be the same .. OpenSees just uses linear interpolation to get the timeseries value at whatever time the domain is at.
by fmk
Wed May 23, 2018 2:12 am
Forum: OpenSees.exe Users
Topic: Writing code and running code
Replies: 3
Views: 3590

Re: Writing code and running code

a file editor such as notepad on windows.

when you start OpenSees type "pwd" to see what directory the application starts in .. use the cd command to get to the directory the file is in before you source it.
by fmk
Wed May 23, 2018 2:10 am
Forum: OpenSees.exe Users
Topic: Error in applying initial velocity to a SDOF
Replies: 1
Views: 1300

Re: Error in applying initial velocity to a SDOF

you have 0 unknown dof when you use the transformation method .. you might try the Penalty method
by fmk
Fri May 11, 2018 9:32 am
Forum: OpenSees.exe Users
Topic: dashpot connect with nonlinear spring in series
Replies: 3
Views: 1481

Re: dashpot connect with nonlinear spring in series

if you are getting results, then you can .. whether the results are correct or not is something else .. looking at the code in the Maxwell model, i would doubt it .. this of course assumes young Prof. Dimitrios Lignos got it correct .. perhaps you should send him an email. He is now is Switzerland. ...
by fmk
Fri May 11, 2018 9:19 am
Forum: OpenSees.exe Users
Topic: Problem with using DataBase commands in OpenSees
Replies: 2
Views: 2728

Re: Problem with using DataBase commands in OpenSees

the material you are using: Concrete07 was not added to the ObjectBroker code, i have added the code. if you can build the beast that is OpenSees you can start using the code know.
by fmk
Fri May 11, 2018 9:12 am
Forum: OpenSees.exe Users
Topic: WARNING -- PathSeries::getDuration<> on empty Vector
Replies: 3
Views: 1826

Re: WARNING -- PathSeries::getDuration<> on empty Vector

simple script for you to play with: model Basic -ndm 2 set accel " Path 1 -dt 0.01 -filePath a.dat" pattern UniformExcitation 1 1 -accel $accel you should play with to sort out your problem, e.g. if a.dat does not exist or is an empty file: OpenSees tmp.tcl OpenSees -- Open System For Earthquake Eng...
by fmk
Fri May 11, 2018 9:02 am
Forum: OpenSees.exe Users
Topic: Get fiber stress-strain at specific cross-section (IP)
Replies: 1
Views: 924

Re: Get fiber stress-strain at specific cross-section (IP)

the only options are to figure out the integration weights (you might trying using the default ones and addinng other ones at points wanted with a 0 weight .. check if it works by doing it and comparing results .. they should not change) .. other option is to use disp based elements and put nodes at...
by fmk
Fri May 11, 2018 8:59 am
Forum: OpenSees.exe Users
Topic: ShellDKGT
Replies: 10
Views: 7895

Re: ShellDKGT

not seeing the error:

fgrep ShellDKGQ ShellDKGT.*
ShellDKGT.cpp: s << "EL_ShellDKGQ\t" << eleTag << "\t";

can you post a 4 node example that just creates 4 nodes, 1 material and 1 element
by fmk
Fri May 11, 2018 8:51 am
Forum: OpenSees.exe Users
Topic: Applied displacement
Replies: 8
Views: 2213

Re: Applied displacement

the trick was only needed if there were no accelerations at the base. as you are using the Penalty method, the base nodes appear in the equations and Newmark is solving for them and updating accelarations at the node. Sometimes people when using Penalty, also keep the fixity in the dof which results...
by fmk
Thu May 03, 2018 6:08 pm
Forum: OpenSees.exe Users
Topic: Applied displacement
Replies: 8
Views: 2213

Re: Applied displacement

the accel should be 0 (unless you used Penalty) .. you should be able to set the accel by including the -accel acelSeriesTag to the time groundMotion (possibly an undocumented feature) .. if you used Penalty tou could check the results for the accel by creating a Matlab script and using the relation...
by fmk
Thu May 03, 2018 6:02 pm
Forum: OpenSees.exe Users
Topic: Why does not the period change even though shear is included
Replies: 6
Views: 3086

Re: Why does not the period change even though shear is incl

you cannot use with disp beam element, your only choice is to switch to forcebeam element .. or put element in parallel with a force beam element with negligably small elastic section (can't be too small as has to invert it) and the shear aggregator you are using.