Acta metall.mater. 41, 2833-2843, 1994
E.Weissenbek and F.G. Rammerstorfer
Institute of Lightweight Structures and Aerospace
Christian Doppler Laboratory for Micromechanics of Materials,
TU Wien, Vienna, Austria
A unit cell approach is used to investigate the influence of the fiber
arrangement (periodic and perturbed periodic) on the thermo-mechanical
behavior of aligned short fiber reinforced MMCs.
Two configurations are compared, staggered and unstaggered fibers, with the
first one describing a more realistic composite.
Whereas the global behavior of the composite is not strongly influenced
by the arrangement, the local microstresses were found to differ
significantly in the investigated arrangements.
The failure behavior is considered at the microlevel via a damage indicator.