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S. Wolff:
"Longer time steps in explicit dynamics subject to small nonlinearities";
accepted as talk for: 82nd Annual Scientific Conference of the International Association of Applied Mathematics and Mechanics (GAMM), Graz, Austria; 2011-04-18 - 2011-04-21; in: "Proceedings in Applied Mathematics and Mechanics", (2011).

An approach that increases the critical time step in explicit time integration is presented. By derivation as a variational
integrator, symplecticity and momentum preservation are ensured. The linear response is assumed to be dominant and is
integrated implicitly, while the nonlinear forces are explicitly integrated. MOLLY filters the high-frequent portions of the
nonlinear forces and increases the critical time step. An SDOF example and a structural example using modal reduction
verify the improved stability.

Project Head Christian Bucher:
Formulierung und Test eines glatten zeitadaptiven Raum-Zeit-Integrators