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\title{Multimaterial models and SPH}

\author{J. P. Vila}

\date{ }

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\maketitle

I will review rapidly the basic features of SPH renormalized methods.
I will focus on some complex  applications : eg Impact of spatial debris
on composite pressurized vessels.
Problems related with global conservation and time discretization will be
discussed.
I also will present some results obtained by combining multifluid relaxed
Rieman solvers and SPH for some free surface flow applications.

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