Experimental and theoretical determination of Young's module for a composite constructed on the base of phenolic resins armed by short fibers / S. V. Sheshenin, P. V. Chistyakov, V. V. Galatenko, D. I. Kalugin, O. N. Shornikova, A. P. Malakho. // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2015. № 4. P. 61-65 [Moscow Univ. Mech. Bulletin. Vol. 72, N 2, 2017. P. 92-96].

Elastic moduli of composite material based on high-temperature modified phenolic resins filled with short carbon fibers are estimated. Comparison of several closed-form formulas used to determine the effective moduli of such composites is the aim of the paper. Results of experimental verification are also given.

Key words: carbon fibers, short fibers, phenolic resin, effective moduli, Eshelby tensor.