Custom libraries

NextFEM Designer allows to use custom material and section libraries, adapting to the needs of an international audience.

Expand material library

The material library can be expanded by writing a CSV file (i.e. a text file using the semicolon separator), as in the following examples.

  • Steel

Name;Code;E [MPa];G [MPa];nu;fyk [MPa];ftk [MPa];Wd [kN/m^3];Md [kg/m^3]

S235;UNI EN 10025-2;210000;80769;0.3;235;360;78.6;801.2232416

S275;UNI EN 10025-2;210000;80769;0.3;275;430;78.6;801.2232416

  • Concrete

Name;Code;E [MPa];G [MPa];nu;fck [MPa];Wd [kN/m^3];Md [kg/m^3]

C8/10;NTC2008;25331;10555;0.2;8;25;254.841998

C12/15;NTC2008;27085;11285;0.2;12;25;254.841998

For other types of materials, all the columns are mandatory except for “fck”, “fyk” and “fck”.The extension of the file have to be *.nfm.

WARNING: units have to be written between square brackets

Expand section Library

The section library can be expanded by writing a CSV file (i.e. a text file using the semicolon separator) as follows:

Name;Code;h [mm];b [mm];tw [mm];tf [mm];r [mm];A [cm^2];Jy [cm4];Wey [cm^3];Wpy [cm^3];iy [cm];Avz [cm^2];Jz [cm^4];Wez [cm^3];Wpz [cm^3];iz [cm]

IPE A 80;UNI;78;46;3.3;4.2;5;6.375401837;64.37774091;16.50711305;18.97743881;3.177708713;3.070001837;6.852668856;2.979421242;4.692462888;1.036754887

The first four columns are mandatory. The extension of the file have to be *.nfs..

WARNING: units have to be written between square brackets