Comput.Struct. 44, 453-458, 1992


COMPUTATIONAL MICROMECHANICS OF
MULTIPHASE MATERIALS

F.G. Rammerstorfer¹, F.D. Fischer², H.J. Böhm¹ and W. Daves²

¹Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria
²Institute of Mechanics,
University for Mining and Metallurgy, Leoben, Austria


Abstract - The majority of the characteristics and parameter values of constitutive laws for the continuum mechanical description of solids are governed by micromechanical phenomena. It is a common but usually cumbersome practice to obtain information on a material law and its parameters by performing series of experiments. In addition to cost and time consuming manipulations such experimental methods often do not yield a fundamental insight into the micromechanical mechanisms responsible for the material behavior.

An alternative approach is presented which uses the finite element method for investigating the micro-structure of certain materials and for developing models for a computational derivation of the macroscopic (continuum mechanical) description. The present contribution shows the application of such methods to metal matrix composites (MMCs) and phase transforming metals.


(hjb,960626)