Re: How to apply initial stress

Hi,

If ground surface is level, initial stress can be given by following commands.

　　control_data_put
　　control_data_put_double_node

After that, if ups and downs are shown in a ground surface, the ground can be deleted by next command.

　　control_mesh_delete_geometry

Please refer to  following address.
http://tochnog.sourceforge.net/slope.html

TANAKA Minoru

>Hi everybody,
>    I want to analysis a tunnel model by Tochnog, but I not sure how to apply the initial stress(stress exist before excavation, in-situ stress), by 
keyword "node_dof" with correct dof lable ? Or "control_unknown_reset_unknown" accompany with "control_unknown_reset_value"?
>    Did someone analyze similarly? Any suggestion will be appreciated. Thanks in advance.
>Joe Seung

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