Search found 5866 matches

by fmk
Fri Jun 08, 2018 8:44 am
Forum: Framework
Topic: Problem with running disp.out and force.out command :) :?
Replies: 3
Views: 1016

Re: Problem with running disp.out and force.out command :)

it works fine for me .. what version and operating system are you using?
by fmk
Fri Jun 08, 2018 8:42 am
Forum: Framework
Topic: Developer using Linux
Replies: 2
Views: 686

Re: Developer using Linux

what version of linux and what version of OpenSees did you build.
by fmk
Fri Jun 08, 2018 8:38 am
Forum: OpenSees.exe Users
Topic: Penalty for Zero Length Contact Element
Replies: 2
Views: 762

Re: Penalty for Zero Length Contact Element

these are penalty factors that enforce the constraing .. it depends on the model you have. you want something large enough to enforce the constraint (as number goes towards infinity the constraint is enforced exactly) , but not too large to effect the conditioning of the global stiffness matrix and ...
by fmk
Fri Jun 08, 2018 8:34 am
Forum: OpenSees.exe Users
Topic: Queries to a Zero Length Contact Element
Replies: 2
Views: 626

Re: Queries to a Zero Length Contact Element

force, stiff, pressure, gap if 2d just force and stiff if 3d.
by fmk
Fri Jun 08, 2018 8:28 am
Forum: OpenSees.exe Users
Topic: How to calculate displacements at the integration points?
Replies: 4
Views: 1205

Re: How to calculate displacements at the integration points

you might want to look at the source code for the element .. as Selim mentioned, the disp beam element assumes linear curvature and constant axial deformation along the length .. the equations are pretty standard for beams, they can be seen here: http://opensees.berkeley.edu/wiki/images/c/c5/FBEvsDB...
by fmk
Fri Jun 08, 2018 8:11 am
Forum: OpenSees.exe Users
Topic: bug in time outputs
Replies: 1
Views: 580

Re: bug in time outputs

what exactly are you expecting .. the time, given your model, is the load factor applied to enforce the constraint.
by fmk
Fri Jun 08, 2018 8:03 am
Forum: OpenSees.exe Users
Topic: ShellDKGT
Replies: 10
Views: 2055

Re: ShellDKGT

by fmk
Wed May 23, 2018 7:14 pm
Forum: OpenSees.exe Users
Topic: Composite beam with concentrated plasticity
Replies: 3
Views: 458

Re: Composite beam with concentrated plasticity

that is a modelling choice i leave to you .. if you are a student you might want to find some expeimental data and try to see what best fits .. you might do both and see how the differences effect the results .. larger displacements, smaller forces if pure steel! .. in actuality probably between the...
by fmk
Wed May 23, 2018 7:08 pm
Forum: OpenSees.exe Users
Topic: ShellDKGT
Replies: 10
Views: 2055

Re: ShellDKGT

what is the revision number that spits out after the version number
by fmk
Wed May 23, 2018 2:39 am
Forum: Framework
Topic: Debugging C++ (Visual Studio) source code with “.tcl” file
Replies: 1
Views: 703

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: 694

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: 458

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: 2055

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: 507

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: 841

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.