Search found 7 matches

by jiangjian0131
Wed Sep 05, 2012 9:27 am
Forum: Soil Modelling
Topic: 3D beam element can not do torsion
Replies: 0
Views: 2273

3D beam element can not do torsion

The 3D beam element DispBeamColumn3d has problems for torsion analysis. For example, creat a cantilever 3D beam and apply a torsion at the free end. The analysis failed due to unknown reasion. Is there problems in considering torsional stiffness (GJ/L) when forming the stiffness matrix.

Jian Jiang
by jiangjian0131
Wed Jul 27, 2011 7:05 am
Forum: Framework
Topic: no elemental load in ShellMITC4 element
Replies: 1
Views: 1121

no elemental load in ShellMITC4 element

Hi, folks There is no elemental load defined in ShellMITC4 element. Actually there is function 'addLoad' in it but it do nothing. Whether it is necessary to create a new elemental class named 'ShellUniformLoad' for shell element just like existing Beam2dUniformLoad for beam element. Also I find a ne...
by jiangjian0131
Mon Jul 25, 2011 3:06 am
Forum: Framework
Topic: errors of external symbol for first build OpenSees2.3
Replies: 2
Views: 1362

Re: errors of external symbol for first build OpenSees2.3

thank you fmk. I had solved the problems and also I trace the previous topic and find the same problems. Sometimes the errors are related to quickMain and forget them, just use the .exe to conduct the .tcl file.
by jiangjian0131
Wed Jul 20, 2011 1:15 am
Forum: Framework
Topic: errors of external symbol for first build OpenSees2.3
Replies: 2
Views: 1362

errors of external symbol for first build OpenSees2.3

Hi, I install the tcl/tk "ActiveTcl8.5.10.0.294993-win32-ix86-threaded.exe" to C:/Program Files/Tcl. Then download OpenSees2.3 and open opensees.sln in Win32. I build but have following errors libm.lib(libm_error.obj) : error LNK2019: unresolved external symbol _errno referenced in function ___libm_...
by jiangjian0131
Mon May 09, 2011 2:11 am
Forum: OpenSees.exe Users
Topic: How to apply elemental load on ShellMITC4
Replies: 0
Views: 568

How to apply elemental load on ShellMITC4

I use ShellMITC4 element to model plate bending problem. I can not apply uniformly distributed load(UDL). Also I check the fuction 'addLoad' in ShellMITC4 and there are no implement in it. So my question is how to apply UDL on ShellMITC4 element?
by jiangjian0131
Fri May 06, 2011 6:06 am
Forum: Soil Modelling
Topic: How to apply elemental load on ShellMITC4
Replies: 0
Views: 951

How to apply elemental load on ShellMITC4

I use ShellMITC4 element to model plate bending problem. I can not apply uniformly distributed load(UDL). Also I check the fuction 'addLoad' in ShellMITC4 and there are no implement in it. So my question is how to apply UDL on ShellMITC4 element?
by jiangjian0131
Tue Jan 18, 2011 2:45 am
Forum: Framework
Topic: how to model rotational spring for beam boundary
Replies: 1
Views: 1425

how to model rotational spring for beam boundary

the constraint command 'fix' can only define fixed or pinned boundary condition. How to add a rotational spring to the end of beam as a boundary