Adaptive Multigrid Methods
for Local and Nonlocal Phase Field Models
of Solder Alloys

Project Heads:

Ralf Kornhuber (FU Berlin)
Jürgen Sprekels (WIAS)

Further Members:

Carsten Gräser (FU Berlin)
Uli Sack (FU Berlin)

Funding period:

12/05-05/14

Objective:

Thermomechanically induced stress accompanied by progressive demixing of solder alloys is one of the most prominent sources for the failure of joints and corresponding electronic devices. The aim of this project is to contribute to the development of a new generation of lead-free solders by numerical modelling of such phase separation processes.
Phase field models such as Cahn-Hilliard or Cahn-Larché equations provide a well-established framework for the mathematical description of phase separation on the meso scale.
We focus both on the development of fast and reliable solvers for Cahn-Larché equations with classical local interaction terms and on the numerical analysis of recent non-local counterparts.

Cooperations:

MATHEON Projects A17, C10, C18, C28, C32, F6
W. Dreyer (WIAS Berlin)
W.H. Müller, T. Böhme (TU Berlin)