J.Engng.Mater.Technol. 116, 268-273, 1994
H.J. Böhm¹, F.D. Fischer², F.G. Rammerstorfer¹ and T. Siegmund²
Christian Doppler Laboratory for Micromechanics of
Materials at the
¹Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria
²Institute of Mechanics,
University for Mining and Metallurgy, Leoben, Austria
Abstract - Finite Element based micromechanical methods are used
to study the influence of microscale phase arrangements on the overall
and microscale thermomechanical properties of two advanced two-phase
materials, duplex steels and unidirectional continuously reinforced metal
matrix composites (MMCs).
Both inclusion--matrix topologies and interwoven microgeometries are
investigated for duplex steels, and the predicted macroscopic transverse
elastoplastic responses are correlated with quantitative stereological
descriptions of the microgeometries.
For the MMCs, the emphasis is put on the influence of the fiber
arrangement on the microscale residual stress states of the as-produced
material and on their effects on damage mechanisms.