Search found 88 matches

by liushuhao
Sat Sep 18, 2010 6:54 pm
Forum: OpenSees.exe Users
Topic: can the TLFD8nBrick element be used in the transient analysi
Replies: 0
Views: 581

can the TLFD8nBrick element be used in the transient analysi

can the TLFD8nBrick element be used in the transient analysis? I have tried to simulate a model using TLFD8nBrick elements, But it seems that it can't be used in in the transient analysis? there are so many bugs,it also can't apply its selfweight by using brickW command? so who can help me ?...
by liushuhao
Thu Sep 02, 2010 4:39 pm
Forum: OpenSees.exe Users
Topic: how can i simulate the freely falling body ?
Replies: 1
Views: 529

any one help me ?
by liushuhao
Wed Sep 01, 2010 6:07 pm
Forum: OpenSees.exe Users
Topic: how can i simulate the freely falling body ?
Replies: 1
Views: 529

how can i simulate the freely falling body ?

dear all , i want to simulate the freely falling body of a cube by using the stdbrick element, the bodyforce is needed, but it seems that the results don't conform to the newton second law,do I need to define the acceleration ? please help !thanks !
by liushuhao
Fri Aug 13, 2010 3:12 am
Forum: OpenSees.exe Users
Topic: Version 2.2.0 released
Replies: 30
Views: 41415

dear fmk
it seems that I found a bug about noderange command.
I want to record 4,879 nodes' displacements ,But I only got 4,509.\
while I use nodeall command in 2.1.0 , It's OK.
by liushuhao
Tue Aug 03, 2010 8:28 pm
Forum: OpenSees.exe Users
Topic: a question about elements death
Replies: 6
Views: 1694

[quote="fmk"]you can't .. that what happens when you remove an element, the resisting forces that it supplied are gone, the nodes are unbalanced and equi must be restored on the next step.[/quote] deer fmk I have a question about elements death(remove elements command) as I know, other FEM softwares...
by liushuhao
Fri Jul 30, 2010 3:51 am
Forum: OpenSees.exe Users
Topic: a question about elements death
Replies: 6
Views: 1694

thanks vesna. I also think so . thanks fmk , I make sure I have remove the invalid nodes because I have written some tcl commands to judge wether it is necessary to kill the nodes by using getEleTags and getNodeTags Commands . I have test a solid beam by killing elements during analyzing.it runs wel...
by liushuhao
Wed Jul 28, 2010 5:50 pm
Forum: OpenSees.exe Users
Topic: a question about elements death
Replies: 6
Views: 1694

a question about elements death

dear all : I use "remove" command to kill the solid elements by testing the Mise stresses . while I have met a difficult problem: if I kill too many elements during the analyze , it will throw an error “ 0x7c931948 0x00000000 read (I don't know how to translate it to English) or !!!pfsfct(): The dia...
by liushuhao
Tue Jul 20, 2010 6:05 pm
Forum: OpenSees.exe Users
Topic: several questions about Tcl
Replies: 3
Views: 960

I want to compare these two lists ,if they have the same tags , pick up the tag , it can run successfully if I don't use “for” loop .but now it failed ,why ?
help
by liushuhao
Tue Jul 20, 2010 6:02 pm
Forum: OpenSees.exe Users
Topic: several questions about Tcl
Replies: 3
Views: 960

who can tell me what's wrong with the foolowing scripts&

set tags1 {77 78 81 80 86 87 90 89 82 83 86 85 91 92 95 94 83 84 87 86 92 93 96 95 85 86 89 88 94 95 98 97 86 87 90 89 95 96 99 98 } set tags2 {77 78 81 80 86 87 90 89 82 } set unkillednum [llength $tags2 ] for {set i 0} {$i < $unkillednum } {incr i} { set q [lindex $tags2 $i ] puts $q lsearch $tags...
by liushuhao
Sun Jul 18, 2010 4:45 pm
Forum: OpenSees.exe Users
Topic: several questions about Tcl
Replies: 3
Views: 960

need help ,please
by liushuhao
Thu Jul 15, 2010 11:44 pm
Forum: OpenSees.exe Users
Topic: several questions about Tcl
Replies: 3
Views: 960

several questions about Tcl

several questions about Tcl dear all , here I have several questions about Tcl 1 : I have gotten a line including some node tags , have can I set each strings to node tags ? for example set fd [open "3.tcl" r] : : : set Value [string range $line [expr $equalpos + 1] [expr $commentpos -1]] puts $Valu...
by liushuhao
Mon May 17, 2010 6:29 pm
Forum: Parallel Processing
Topic: not able to download parallel version
Replies: 3
Views: 1782

me too .any one can help me .

my email is liushuhao2004@yahoo.com.cn .thanks
by liushuhao
Mon May 17, 2010 6:24 pm
Forum: Parallel Processing
Topic: not able to download parallel version
Replies: 3
Views: 1782

me too .any one can help me .

my email is liushuhao2004@yahoo.com.cn .thanks
by liushuhao
Fri Apr 30, 2010 12:53 am
Forum: OpenSees.exe Users
Topic: what is the limit of the element number ?
Replies: 8
Views: 3704

dear fmk can you tell me how can I get the Gausspoints of the stdBrick element ? annother question, I have found that the Gausspoints of the Brick8N element are different from othe FEA software , I want to get the stresss of the nodes from the Gausspoints , I want to know the relationship between th...
by liushuhao
Wed Apr 28, 2010 6:48 am
Forum: OpenSees.exe Users
Topic: what is the limit of the element number ?
Replies: 8
Views: 3704

thanks fmk
while i found it seems that the OS can calculate more elements when I use stdBrick than Brick8N .why ?
another question, how can I get the Gusspoint coordinates of the stdBrick ?
I really want to use stdBrick elements , did you release the 2.2.1 version ?