doc:user:elements:volumes:ortho_continuousdamage
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| doc:user:elements:volumes:ortho_continuousdamage [2013/07/11 15:19] – created 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 $a_c$ et $\tau_c$ | + | where $a_c$ and $\tau_c$ |
| $$ | $$ | ||
| \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 $Y_{ii}^{c+}$ | + | where $Y_{ii}^{c+}$ |
| $$ | $$ | ||
| \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*} | ||
| d_{12}^s = \min\left( | d_{12}^s = \min\left( | ||
| 1, | 1, | ||
| Line 78: | Line 80: | ||
| \right\rangle_+ | \right\rangle_+ | ||
| \right) \;. | \right) \;. | ||
| + | \end{eqnarray*} | ||
| $$ | $$ | ||
| - | === Paramètres | + | === Parameters |
| - | ^ Nom | + | ^ Name |
| | $Y_{11}^{c+}$ | | $Y_{11}^{c+}$ | ||
| | $Y_{11}^{c-}$ | | $Y_{11}^{c-}$ | ||
doc/user/elements/volumes/ortho_continuousdamage.1373548757.txt.gz · Last modified: (external edit)
