Block Format Keyword Defines a function (For example: stress (Y-axis) as a function of strain (X-axis)).


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


Field Contents SI Unit Example
fct_ID Function identifier (mandatory)

(Integer, maximum 10 digits)

fct_title Function title

(Character, maximum 100 characters)

X Abscissa value


Y Function value




  1. The function may contain any number of points.
  2. For Abscissa values that are defined outside the range of the function, the function is linearly extrapolated with a slope defined by the last two points of the function. The list of abscissa values must be strictly increased (which means each abscissa value must be greater than the previous abscissa value).
  3. A function and a table cannot share the same identifier.
  4. Any option referencing a function can reference a table of one dimension as well, and reciprocally.