$Assignkpstrain

$Assignkpstrain is to privde the strain information of each layer

The format is

$Assignkpstrain
$\epsilon_{xx}$ $\epsilon_{yy}$  $\epsilon_{zz}$ $\epsilon_{yz}$ $\epsilon_{zx}$ $\epsilon_{xy}$
$\epsilon_{xx}$ $\epsilon_{yy}$  $\epsilon_{zz}$ $\epsilon_{yz}$ $\epsilon_{zx}$ $\epsilon_{xy}$
$\epsilon_{xx}$ $\epsilon_{yy}$  $\epsilon_{zz}$ $\epsilon_{yz}$ $\epsilon_{zx}$ $\epsilon_{xy}$
...
...
... total N layers