Search found 10 matches

by huyuntian
Tue Mar 21, 2017 5:41 pm
Forum: Framework
Topic: How to get node/elements responses in my material?
Replies: 1
Views: 1178

How to get node/elements responses in my material?

Dear FMK and other friend :) I have developed a new material by the way of compiling dll.And it works well. Now I want to get current state of the model (the location of NodeI for example) in my material. When I include the Domain.h and Node.h in my cpp and use: Domain* theDomain = OPS_GetDomain(); ...
by huyuntian
Mon Nov 21, 2016 7:30 pm
Forum: Framework
Topic: compile opensees with 2015
Replies: 7
Views: 4877

Re: compile opensees with 2015

Hi~ I also faced the same errors. :shock: In VS2015, the stdio is defined by: _ACRTIMP_ALT FILE* __cdecl __acrt_iob_func(unsigned); #define stdin (__acrt_iob_func(0)) #define stdout (__acrt_iob_func(1)) #define stderr (__acrt_iob_func(2)) but in VS10/12/13 that is defined by : _CRTIMP FILE * __cdecl...
by huyuntian
Tue Dec 22, 2015 7:45 pm
Forum: OpenSees.exe Users
Topic: Something about Mass matrix
Replies: 4
Views: 1419

Re: Something about Mass matrix

dear fmk: i cant find out the specific global system matrix form when use CentralDifference. why when using your paras, printA will return mass matrix? hope you kindly make some explanation. i use Newmark method, with no Damping, and printA will return Ke= K+1/(beta*dt**2)*M. if that is right (K is ...
by huyuntian
Sun Dec 20, 2015 4:28 am
Forum: OpenSees.exe Users
Topic: Something about Mass matrix
Replies: 4
Views: 1419

Something about Mass matrix

Hi all, As is known to everybody, we can obtain global stiffness matrix by command PrintA. and for mass matrix, i tried my model under a simple Transient analysis and get the equivalent global matrix. then i can cal mass matrix. there is one thing i cant understand: as a 2D problem, no matter how mu...
by huyuntian
Sat Jun 06, 2015 3:16 am
Forum: OpenSees.exe Users
Topic: Can I use stressStrain recorder in zeroLengthSection ele?
Replies: 4
Views: 1633

Re: Can I use stressStrain recorder in zeroLengthSection ele

fmk wrote:
> there probably is no need for the 1, as there is only 1 section in the
> TrussSection.
Thank you sir, I really learn much from you~
by huyuntian
Thu Jun 04, 2015 6:32 pm
Forum: OpenSees.exe Users
Topic: Can I use stressStrain recorder in zeroLengthSection ele?
Replies: 4
Views: 1633

Can I use stressStrain recorder in zeroLengthSection ele?

Hello everyone, I'm trying to use zeroLengthSection element to analyze moment-curvature of RC sections. I can get the result of moment and curvature through: "recorder Node -file ** -time -node * -dof ** disp;" and everything is alright. But command like : "recorder Element -file Element1.out -time ...
by huyuntian
Thu Jan 15, 2015 11:51 pm
Forum: OpenSees.exe Users
Topic: How to explain this result?
Replies: 1
Views: 621

How to explain this result?

Dear all, The codes below get a strange result that I can’t understand. The model is a fiber-section RC column, and I am sure that the definition of it is correct. #------------------------------------------------------------------ #establish model … … #recorder #------------------------------------...
by huyuntian
Wed Oct 15, 2014 11:26 pm
Forum: OpenSees.exe Users
Topic: :D how can I get one section' displacement?
Replies: 3
Views: 966

Re: :D how can I get one section' displacement?

fmk wrote:
> you cannot obtain it using recorders. if you are using displacement based
> elements you can calculate it directly knowing nodal displacements. this is
> not possible for the beam column element.

Thanks for your kindly reply.
BTW, does Opensees have variable cross-section element?
by huyuntian
Tue Oct 14, 2014 10:51 pm
Forum: OpenSees.exe Users
Topic: :D how can I get one section' displacement?
Replies: 3
Views: 966

:D how can I get one section' displacement?

Hey everyone, I have a simple question. I know that I can use command like below to record certain section's deformation, recorder Element -file xx.out -time -ele 1 section $i deformation the sections are defined previously as one IntgrPts. But how can I get one section' displacement? I ask this que...
by huyuntian
Sun Sep 28, 2014 7:03 pm
Forum: OpenSees.exe Users
Topic: MORE DETAILS FOR NEW USER?
Replies: 1
Views: 670

MORE DETAILS FOR NEW USER?

Hey, I am a new user of OpenSees. I have learn the software for a couple of days by reading the Command manual and those examples on the website. My question is those items in the manual are just providing simple descriptions of commands. What should I do if I want get more details about the commend...