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Example 9: 2D Impact of metal plate, rebuilding of mesh after large deformations.

A metal plate impacts on a rigid sphere. We study here the large deformation of the plate. The initial mesh is show below

\begin{figure}\centerline{\epsfig{file=ps/ex9mes0.ps,width=7cm}}\end{figure}

In each time step, a new mesh is built to prevent the elements from becoming too distorted. State variables (velocities, stresses, etc.) are mapped from the old mesh onto the new mesh. The mesh after these time steps is shown below:

\begin{figure}\centerline{\epsfig{file=ps/ex9mes1.ps,width=7cm}}\end{figure}

Finally we show the equivalent plastic strain distribution:

\begin{figure}\centerline{\epsfig{file=ps/ex9epeq.ps,width=7cm}}\end{figure}



tochnog 2001-09-02