J.Engng.Mater.Technol. 125, 50-55, 2003

NUMERICAL SIMULATIONS OF THE CREEP DEFORMATION OF MMCs IN 4-POINT BENDING MODE

T. Daxner1, F.G. Rammerstorfer1, J. Segurado2, H. Pettermann1

1 Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria
2 Dpto. de Ciencia de Materiales, E.T.S.I. Caminos, Canales y Puertos,
Universidad Politécnica de Madrid, Madrid, Spain


Abstract - The 4-point bending test is a widely used method to determine material parameters. No commonly accepted evaluation methodology is available for materials showing non-linear deformation mechanisms. In the present study micro- and macro-mechanical simulation models of continuously reinforced metal matrix composites are employed to investigate thermo-elasto-plasticity and creep in such experiments. The overall deflection behavior and the underlying mechanisms are identified revealing the interaction of various micromechanical phenomena.


(hjb,030219)