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11.3.6 Mode-I Ultimate Tensile Strain USREPU

Subroutine USREPU determines the ultimate tensile strain $ \varepsilon_{{\mathrm{u}}}^{}$ in Total Strain crack models [§6.2], depending on ambient variables (temperature, concentration, maturity) and time.

    (Fortran)


      SUBROUTINE USREPU( usrkey, te, co, ma, ti, eu )
\begin{figure}\centering
\begin{tabbing}
out~~\=\textsc{dbl}~~\=\texttt{abcdef...
...texttt{eu}\>Mode-I ultimate tensile strain. \\ [-3ex] \end{tabbing} \end{figure}


usrkey
is the user-supplied keyword from input table 'MATERI'. This can be used to model various functions within one subroutine.

eu
is the Mode-I ultimate tensile strain $ \varepsilon_{{\mathrm{u}}}^{}$ calculated from the input arguments.



DIANA-9.3 User's Manual - Material Library
First ed.

Copyright (c) 2008 by TNO DIANA BV.