The OpenSees Community

Deal all, I was wondering if there is any future plan for updatingMakefile.def for macOS. For example, Makefile.def for Ubuntu is quite well instructed. I can easily compile OpenSees 3.1.0 in Ubuntu by simply following the instructions written in "MAKES/Makefile.def.EC2-UBUNTU". However, f...

Hello, I'm experiencing a problem while using Joint2D in macOS Catalina. Joint2D element requires input parameters as shown below: "element Joint2D $eleTag $Nd1 $Nd2 $Nd3 $Nd4 $NdC <$Mat1 $Mat2 $Mat3 $Mat4> $MatC $LrgDspTag" If I set "$Mat1 $Mat2 $Mat3 $Mat4" to zero, OpenSees re...

deal all. I have been trying to make a slight modification to Fatigue material. But I'm facing some difficulties... 1. OPS_GetNumRemainingInputArgs() this command is originally included in Fatigue material. but this command does not seem to work properly in custom model (*.DLL). Compiling is success...

Dear fmk, thank you very much for your detailed reply. I'm so sorry but I can't understand answer 3. I feel so shame on my ignorance, but I don't see the difference between command prompt (cmd.exe) and terminal application/Dos prompt. (mpiexec and opensees are included in the PATH environment) and y...

Dear fmk, thank you very much for your reply! I re-run the analysis to see the differences as you suggested. OpenSees (1 node) + "system BandGeneral" : 8857 milliseconds OpenSees (1 node) + "system Mumps" : 12644 milliseconds OpenSeesSP (4 nodes) + "system BandGeneral" ...

the problem is resolved. it looks like "system Mumps" command and "analysis Static" command shouldn't be declared more than once... and after this problem is resolved, another problem took place. I have no idea why, but "system Mumps" command increases analysis time... ...

dear all, I have problem running scripts with OpenSeesSP. I tried with "OpenSees Example 5. 2D Frame, 3-story 3-bay" example. link : http://opensees.berkeley.edu/wiki/index.php/OpenSees_Example_5._2D_Frame,_3-story_3-bay,_Reinforced-Concrete_Section_%26_Steel_W-Section here are some modifi...

Dear fmk,

thank you for your kind reply.
now i see the clear difference between betaKCurrent and betaKComm.

thank you very much.

No, unfortunately, it is not solved.

instead, I compiled *.dylib as a temporal solution.

I'm going to re-try to resolve this error (or at least, find out causes of the errors) about a couple of weeks later.

Dear fmk, thank you for your kind reply! I'll try using modalDamping command, and I will notice you if something is amiss. and I would like to ask you one more question. if 'betaKcomm' is stiffness matrix of the last committed time step, what is the difference between betaKCurrent and betaKcomm? thi...

Dear fmk, sorry for my late respond... I understand that 'betaKinit' is recommended when no proper reason is provided. but what i would like to ask you is how '$betaKcomm' is measured in OpenSEES. the followings are my presumptions about "$betaK"s. $betaKinit seems to be related to elastic...

deal all, I would like to ask a question about rayleigh command. the usage of rayleigh command : rayleigh $alphaM $betaK $betaKinit $betaKcomm I can see that $alphaM is same as 'a0' term explained in a text book 'Dynamics of structures' written by prof chopra. and $betaKinit has something to do with...

Dear Sanjeema, The first time i successfully compiled ElasticPP.dll was about an year ago. at that time, win32functions.cpp had no problem. but when I tried compiling same example with the newest svn, it gave me same error as yours. (related with 'win32functions.cpp') I think there are some problems...

I remember that i had problem compiling example material(elasticPPcpp) with core directory alone. but searching missing files and then pasting into my additional library (or core folder) solved the issue. first of all, I downloaded whole files from OpenSees svn. (http://opensees.berkeley.edu/OpenSee...

for more details about missing files : Visual studio : I drag & dropped missing files in the 'Source Files' folder located in the solution explorer. OS X : method one - simply copy missing files in the same folder where "makefile" exists. or method two - add more file path to the varia...