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Subsections


Example Model BOXG

This example illustrates the creation of a box-section cantilever beam with a single point load at the free end. Gravitational forces are not modelled.





  
Figure 9.1: Example Cantilever Beam
\begin{figure}
\centerline{
\psfig {figure=ex1.ps,width=5.0in}
}\end{figure}

FEMGEN Commands for Model BOXG

        
 PROPERTY FE-PROG LR.STRAND
 GEOM POINT  P1    0
 GEOM POINT  P2    100
 PROP MAT MAT STEM  210e3 .29 7860e-9
 PROP PHYS BOX PH1 10 8 1  2   
 PROP PHYS BOX PH1 ORIE  0 0 1
 GEOM LINE STR  L1   P1   P2       20
 MESHING TYPE L1   BE2     1
 PROP ATTACH L1   STEM PH1 
 PROP LOAD FORC LO1    1 P2 -100 2
 PROP BOUN CONS P1 9
 MESH GENERATE
 UTILITY WRITE LR.STRAND boxg.dat
 YES

LR.STRAND Input Deck for Model BOXG

 
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ LR.STRAND INPUT DECK                         $
$ CREATED BY FEMGV VERSION 2.310      $
$ TRANSLATED BY FEMGEN-LR.STRAND VERSION 3.003 $
$ FILE CREATED: DATE 12/09/95 TIME 16:50:07    $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ MESSAGE LOGGING IS ON                        $
$ EXTERNAL MATERIAL DIRECTORY NOT USED         $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
TITLE No model title      
$ CASE        ID     LID   SPCID   MPCID
CASE           1    1001       1       1
$
$$$$$$$$$$$$$$$$$
$ BULK DATA ... $
$$$$$$$$$$$$$$$$$
$
BEGIN
$
$ GRID POINT CARDS ... 
$
$            GID               X       Y       Z
GRID           1             0.0     0.0     0.0
GRID           2              5.     0.0     0.0
GRID           3             10.     0.0     0.0
GRID           4             15.     0.0     0.0
GRID           5             20.     0.0     0.0
GRID           6             25.     0.0     0.0
GRID           7             30.     0.0     0.0
GRID           8             35.     0.0     0.0
GRID           9             40.     0.0     0.0
GRID          10             45.     0.0     0.0
GRID          11             50.     0.0     0.0
GRID          12             55.     0.0     0.0
GRID          13             60.     0.0     0.0
GRID          14             65.     0.0     0.0
GRID          15             70.     0.0     0.0
GRID          16             75.     0.0     0.0
GRID          17             80.     0.0     0.0
GRID          18             85.     0.0     0.0
GRID          19             90.     0.0     0.0
GRID          20             95.     0.0     0.0
GRID          21            100.     0.0     0.0
$
$ SINGLE POINT CONSTRAINT CARDS ... 
$
$          SPCID     DOF       GIDS ...
SPC1           1  123456       1 THRU          1
$
$ RIGID ELEMENTS, MULTI-POINT CONSTRAINTS ... 
$
$ NONE SPECIFIED
$
$ ELEMENT CARDS ... 
$
$ TYPE        ID   IPROP       GRID POINTS ...
CBAR           1       1       1       2     0.0      5.     0.0       1
CBARAO         1      FR     0.2     0.4     0.6     0.8
CBAR           2       1       2       3     0.0      5.     0.0       1
CBARAO         2      FR     0.2     0.4     0.6     0.8
CBAR           3       1       3       4     0.0      5.     0.0       1
CBARAO         3      FR     0.2     0.4     0.6     0.8
CBAR           4       1       4       5     0.0      5.     0.0       1
CBARAO         4      FR     0.2     0.4     0.6     0.8
CBAR           5       1       5       6     0.0      5.     0.0       1
CBARAO         5      FR     0.2     0.4     0.6     0.8
CBAR           6       1       6       7     0.0      5.     0.0       1
CBARAO         6      FR     0.2     0.4     0.6     0.8
CBAR           7       1       7       8     0.0      5.     0.0       1
CBARAO         7      FR     0.2     0.4     0.6     0.8
CBAR           8       1       8       9     0.0      5.     0.0       1
CBARAO         8      FR     0.2     0.4     0.6     0.8
CBAR           9       1       9      10     0.0      5.     0.0       1
CBARAO         9      FR     0.2     0.4     0.6     0.8
CBAR          10       1      10      11     0.0      5.     0.0       1
CBARAO        10      FR     0.2     0.4     0.6     0.8
CBAR          11       1      11      12     0.0      5.     0.0       1
CBARAO        11      FR     0.2     0.4     0.6     0.8
CBAR          12       1      12      13     0.0      5.     0.0       1
CBARAO        12      FR     0.2     0.4     0.6     0.8
CBAR          13       1      13      14     0.0      5.     0.0       1
CBARAO        13      FR     0.2     0.4     0.6     0.8
CBAR          14       1      14      15     0.0      5.     0.0       1
CBARAO        14      FR     0.2     0.4     0.6     0.8
CBAR          15       1      15      16     0.0      5.     0.0       1
CBARAO        15      FR     0.2     0.4     0.6     0.8
CBAR          16       1      16      17     0.0      5.     0.0       1
CBARAO        16      FR     0.2     0.4     0.6     0.8
CBAR          17       1      17      18     0.0      5.     0.0       1
CBARAO        17      FR     0.2     0.4     0.6     0.8
CBAR          18       1      18      19     0.0      5.     0.0       1
CBARAO        18      FR     0.2     0.4     0.6     0.8
CBAR          19       1      19      20     0.0      5.     0.0       1
CBARAO        19      FR     0.2     0.4     0.6     0.8
CBAR          20       1      20      21     0.0      5.     0.0       1
CBARAO        20      FR     0.2     0.4     0.6     0.8
$
$ PHYSICAL PROPERTY CARDS ...
$
$ PH1      IPROP    IMAT
PBAR           1       1     44. 558.667 318.667 545.391
+             5.      4.     -5.      4.      5.     -4.     -5.     -4.
+        .272727 .727273
$
$ MATERIAL CARDS ...
$
$ STEM       MID       E       G      NU     RHO
MAT1           1 210000.             .29 .786E-5
$
$ LOAD CARDS ... 
$
$ LOAD CASE    1
$
$
$ LO1       LSID     GID               S      Vx      Vy      Vz
FORCE          1      21             1.0           -100.        
$
$ LOAD COMBINATION CARDS ... 
$
$           LCID       S      F1   LSID1
LOAD        1001     1.0     1.0       1
END
$ FEMGEN-LR.STRAND TRANSLATION COMPLETED WITH ...
$ INFORMATION MESSAGES: 0
$ WARNING     MESSAGES: 0
$ ERROR       MESSAGES: 0



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8/18/1999