ID    D04011A,NASTRAN                                                           
APP   DISP                                                                      
SOL   4,0                                                                       
TIME  10                                                                        
CEND                                                                            
TITLE    = DIFFERENTIAL STIFFNESS ANALYSIS FOR A HANGING CABLE                  
SUBTITLE = NASTRAN DEMONSTRATION PROBLEM NO. D04-01-1A                          
LABEL    = INITIAL SHAPE IS A CIRCLE, FINAL SHAPE IS A CATENARY                 
DISP = ALL                                                                      
SPCF = ALL                                                                      
LOAD = 32                                                                       
SPC  = 2                                                                        
STRESS = ALL                                                                    
FORCE  = ALL                                                                    
SUBCASE 1                                                                       
OLOAD = ALL                                                                     
LABEL = LINEAR SOLUTION                                                         
SUBCASE 2                                                                       
LABEL = NONLINEAR SOLUTION                                                      
BEGIN BULK                                                                      
BAROR                                   -1.2    1.0     0.0     1               
CBAR    10      10      10      11                                              
CBAR    11      10      11      12                                              
CBAR    12      10      12      13                                              
CBAR    13      10      13      14                                              
CBAR    14      10      14      15                                              
CBAR    15      10      15      16                                              
CBAR    16      10      16      17                                              
CBAR    17      10      17      18                                              
CBAR    18      10      18      19                                              
CORD2C  10      0       .0      .0      .0      .0      .0      1.0     +CS1    
+CS1    1.0     .0      .0                                                      
GRAV    32      0       32.2    0.0     1.0     .0                              
GRDSET          10                              0       345                     
GRID    10              10.0    .0                                              
GRID    11              10.0    10.0                                            
GRID    12              10.0    20.0                                            
GRID    13              10.0    30.0                                            
GRID    14              10.0    40.0                                            
GRID    15              10.0    50.0                                            
GRID    16              10.0    60.0                                            
GRID    17              10.0    70.0                                            
GRID    18              10.0    80.0                                            
GRID    19              10.0    90.0                                            
MAT1    1       5.5+5           .3      .4                                      
PARAM   BETAD   8                                                       DIFFSTIF
PARAM   EPSIO   1.0-5                                                   DIFFSTIF
PARAM   NT      18                                                      DIFFSTIF
PBAR    10      1       .1      1.0-6   1.0-6                                   
SPC     2       10      12      .0      19      1       .0                      
ENDDATA                                                                         
