*MAT_071 (CABLE_DISCRETE_BEAM)

LS-DYNA Input Interface KeywordThis keyword defines an elastic cable material with no stiffness in compression.

Format

(1) (2) (3) (4) (5) (6) (7) (8)
*MAT_071 or *MAT_CABLE_DISCRETE_BEAM
mat_ID ρ i E CID F0      

Definition

Field Contents SI Unit Example
mat_ID Material identifier

(Integer)
ρ i Initial density

(Real)

 [ kg m 3 ]
E
> 0
Youngs modulus
< 0
Stiffness

(Real)

 [ Pa ] or [ N m ]
CID Curve identifier for engineering stress vs engineering strain
= 0
No stiffness in compression

(Integer)

  
F0 Initial preload (tensile) force

(Real)

 [ N ]

Comments

  1. This keyword maps to /MAT/LAW113 (SPR_BEAM).
  2. The material is only used with *SECTION_BEAM, ELFORM = 6 discrete beam elements.
  3. The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 character long line is added after the keyword input line which allows an entity title to be defined.