Scr.Mater. 48, 223-228

MORI-TANAKA BASED EVALUATION OF INCLUSION STRESSES IN COMPOSITES WITH NONALIGNED REINFORCEMENTS

D. Duschlbauer, H.E. Pettermann and H.J. Böhm

Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria


Abstract - A version of Benveniste's Mori-Tanaka method is used to estimate the reinforcement microstresses in thermoelastic composites containing nonaligned fibers. The stresses in individual reinforcements are evaluated in dependence on the fibers' orientation for mechanical and thermal applied loads. Results are presented for SiC/Al composites with random or axisymmetric fiber orientation distributions and compared with unit cell predictions.


(hjb,021127)