doc:user:elements:volumes:ortho_continuousdamage
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doc:user:elements:volumes:ortho_continuousdamage [2014/02/07 16:27] – joris | doc:user:elements:volumes:ortho_continuousdamage [2016/03/30 15:23] (current) – external edit 127.0.0.1 | ||
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- | ====== | + | ====== |
- | La classe | + | The '' |
- | Lois orthotropes implémentées dans Metafor | + | Orthotropic laws implemented in Metafor. |
Line 9: | Line 9: | ||
=== Description === | === Description === | ||
- | Loi d' | + | Damage law with delay effect for woven composites. |
- | La densité d' | + | The strain energy density is written as: |
$$ | $$ | ||
\begin{eqnarray*} | \begin{eqnarray*} | ||
Line 29: | Line 29: | ||
\end{eqnarray*} | \end{eqnarray*} | ||
$$ | $$ | ||
- | Il y a trois variables d' | ||
+ | Three damage variables are introduced. Delay effect is introduced with the definition of a law governing the temporal evolution of damage : | ||
$$ | $$ | ||
\dot{d}_{ij} = \frac{1}{\tau_c}\, | \dot{d}_{ij} = \frac{1}{\tau_c}\, | ||
$$ | $$ | ||
- | où ac et τc | + | where ac and τc |
$$ | $$ | ||
\begin{eqnarray*} | \begin{eqnarray*} | ||
d_{11}^s &=& \left\{ | d_{11}^s &=& \left\{ | ||
\begin{array}{ll} | \begin{array}{ll} | ||
- | 0 & \text{ | + | 0 & \text{ |
- | \text{ | + | \text{ |
- | 1 & \text{ | + | 1 & \text{ |
\end{array} | \end{array} | ||
\right. \;, \\ | \right. \;, \\ | ||
d_{22}^s &=& \left\{ | d_{22}^s &=& \left\{ | ||
\begin{array}{ll} | \begin{array}{ll} | ||
- | 0 & \text{ | + | 0 & \text{ |
- | \text{ | + | \text{ |
- | 1 & \text{ | + | 1 & \text{ |
\end{array} | \end{array} | ||
\right. \;, | \right. \;, | ||
\end{eqnarray*} | \end{eqnarray*} | ||
$$ | $$ | ||
- | où Yc+ii | + | where Yc+ii |
$$ | $$ | ||
\begin{eqnarray*} | \begin{eqnarray*} | ||
Line 64: | Line 65: | ||
&=& \left\{ | &=& \left\{ | ||
\begin{array}{ll} | \begin{array}{ll} | ||
- | Y_{ii} & \text{ | + | Y_{ii} & \text{ |
- | 0 & \text{ | + | 0 & \text{ |
\end{array} | \end{array} | ||
\right. \;, | \right. \;, | ||
\end{eqnarray*} | \end{eqnarray*} | ||
$$ | $$ | ||
- | et on écrit | + | then |
$$ | $$ | ||
\begin{eqnarray*} | \begin{eqnarray*} | ||
Line 82: | Line 83: | ||
$$ | $$ | ||
- | === Paramètres | + | === Parameters |
- | ^ Nom | + | ^ Name |
| Yc+11 | | Yc+11 | ||
| Yc−11 | | Yc−11 |
doc/user/elements/volumes/ortho_continuousdamage.1391786860.txt.gz · Last modified: 2016/03/30 15:22 (external edit)