/PROP/TYPE3 (BEAM)

Block Format Keyword Describes the beam property for torsion, bending, membrane or axial deformation.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/PROP/TYPE3/prop_ID/unit_ID or /PROP/BEAM/prop_ID/unit_ID
prop_title
  Ismstr                
dm df            
Area IYY IZZ IXX    
ω D O F Ishear                

Definitions

Field Contents SI Unit Example
prop_ID Property identifier

(Integer, maximum 10 digits)

 
unit_ID Unit Identifier

(Integer, maximum 10 digits)

 
prop_title Property title

(Character, maximum 100 characters)

 
Ismstr Small strain option flag.
=0 (Default)
Set to 4
=1
Small strain formulation from t = 0
=2
Set to 4
=3
Set to 4
=4
Full geometric nonlinearities

(Integer)

 
dm Beam membrane damping

Default = 0.00 (Real)

 
df Beam flexural damping

Default = 0.01 (Real)

 
Area Cross section

(Real)

[ m 2 ]
IYY Area moment of inertia, bending.

(Real)

[ m 4 ]
IZZ Area moment of inertia, bending.

(Real)

[ m 4 ]
IXX Area moment of inertia, torsion.

(Real)

[ m 4 ]
ω D O F Rotation DOF code of nodes 1 and 2 (see detail input below).

(6 Booleans)

 
Ishear Beam formulation flag.
=0
Takes shear into account.
=1
Neglects shear.

(Integer)

 

Detail of Rotation DOF Input Fields for Nodes 1 and 2

(1)-1 (1)-2 (1)-3 (1)-4 (1)-5 (1)-6 (1)-7 (1)-8 (1)-9 (1)-10
      ω X 1 ω Y 1 ω Z 1   ω X 2 ω Y 2 ω Z 2

Definitions

Field Contents SI Unit Example
ω X 1 = 1 Rotation DOF about X at node 1 is released.

(Boolean)

 
ω Y 1 = 1 Rotation DOF about Y at node 1 is released.

(Boolean)

 
ω Z 1 = 1 Rotation DOF about Z at node 1 is released.

(Boolean)

 
ω X 2 = 1 Rotation DOF about X at node 2 is released.

(Boolean)

 
ω Y 2 = 1 Rotation DOF about Y at node 2 is released.

(Boolean)

 
ω Z 2 = 1 Rotation DOF about Z at node 2 is released.

(Boolean)

 

Example (Beam)

#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/2
unit for prop
                  g                  mm                  ms
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/BEAM/4/2
beam (bXh=10X10)
#             Ismstr
                   0
#                 dm                  df
                   0                   0
#               Area                 Iyy                 Izz                 Ixx
                 100              833.33              833.33             1666.66
#      Rot    Ishear
   000 000         0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#ENDDATA
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Comments

  1. Small strain formulation is activated from time t=0, if Ismstr =1. It may be used for a faster preliminary analysis because Δ t is constant, but the accuracy of results is not ensured.
  2. The strains and stresses which are given in material laws are engineering strains and stresses. Time history output returns engineering strains and stresses.

    clip0093
    Figure 1.