7.1.1 Ambient Influence

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7.1.1 Ambient Influence

The influence of temperature, concentration or maturity on viscoelasticity in the Power Law model may be input directly in table 'MATERI' or, more generally, via a user-supplied subroutine. A special form of direct input is available for young hardening concrete.

Direct input (syntax)

$\begin{figure}\centering \begin{tabbing} \texttt{'MATERI'} \\ [-1.0ex] \rule{14... ...textit{mvn}}$_{r}\,$ \texttt{\textit{en}}$_{r}\,$ \end{tabbing} \end{figure}$

e1 ...en: (n $\leq$ 30 )are the Young's moduli E for the corresponding ambient values respectively.
TEMYOU: specifies temperature influence on Young's modulus E , values te1 to ten are temperatures T .
CONYOU: specifies concentration influence on Young's modulus E , values co1 to con are concentrations C .
MATYOU: specifies maturity influence on Young's modulus E , values mv1 to mvn are maturity variables M .

(file.dat)

'MATERI'
  1   YOUNG   210000.
      POISON  0.3
      POWER   0.2  10.0  2.5  0.3
      TEMYOU    0.0  210000.
              200.0  210000.
              500.0  150000.
      TEMALP    0.0  1.2E-6
              600.0  1.0E-6

In this example the constant values for Young's modulus YOUNG and Poisson's ratio POISON are required to determine the linear stiffness.

Next: 7.1.2 Young Hardening Concrete Up: 7.1 Power Law Previous: 7.1 Power Law Contents Index

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

Copyright (c) 2008 by TNO DIANA BV.