*MATERIAL

*MATERIAL

(repeat previous line for all materials)

Defines the material properties. These values will be displayed in the window activated by the button).

mat #: number of the material (must be unique, but does not need to be consecutively numbered

type: either concrete (material without tensile strength) or steel (material with equal tensile and compressive strengths. Must be in lowercase.

max stress: compressive strength for concrete or yield stress for steel. May be substituted by the word elastic, in which case a very large value is inserted at the time of generating the input file for the FE calculation.

modulus of elasticity: modulus of elasticity of the material

Poisson’s ratio: Poisson’s ratio of the material (not used by iConc, but required by other programs)

The default values provided are defined as parameters to the applet and are valid for meshes in which the following units are used : [MN] (Meganewton) for the forces and [m] (meter for the forces. Stresses expressed in [MN/m²] are the same as those expressed in [MPa] or [N/mm²].

The default values may be modified, but there must always be a geometries #2 and 11, as well as material #1 and 11, as these are used by default when creating areas and rebars.