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A new approach for estimating the mechanical properties of multiphase composite is proposed. The Representative Volume Element (RVE) of the material consists of two different metal matrices and arbitrary number of elastic hardening phases. Multistep homogenization procedures are applied, accounting for influence of the constituent properties, sizes, volume fractions and microstructural distributions. Modified Mori-Tanaka homogenization technique for micropolar media and Budiansky self-consistent method are used for estimation the overall properties of the composite. The theoretical model is applied to description of the properties of precipitation hardening rapidly solidified alloy of the system AlFeVSi with high content of Fe and Si.

[1] Yaneva, S., N. Stoichev, G. Avdeev, R. Petrov, A. Davidkov. Development of Nanozones in Microcrystalline Alloys based on the Al-Fe-V-Si System. Metallurgist, 54 (2010), 459-467.

[2] Parashkevova, L., N. Bontcheva. Strengthening of Multiphase Al based Composites. Comptes rendus de l’Académie bulgare des Sciences, 66 (2013), No. 8, 1175-1182.

[3] Hu, G., X. Liu, T. J. Lu. A Variational Method for Non-linear Micropolar Composites. Mechanics of Materials, 37 (2005), 407-425.

[4] Parashkevova, L., N. Bontcheva, V. Babakov. Modelling of Size Effects on Strengthening of Multiphase Al based Composites. Comput. Mater. Sci., 50 (2010), No. 2, 527-537.

[5] Budiansky, B. On the Elastic Moduli of Some Heterogeneous Materials. J. Mech. Phys. Solids, 13 (1965), 223-227.

[6] Privalko, V. P., V. F. Shumsky, E. G. Privalko, V. M. Karaman, R.Walter, K. Friedrich, M. Q. Zhang, M. Z. Rong. Viscoelasticity and Flow Behaviour of Irradiation Grafted Nano-inorganic Particle filled Polypropylene Composites in the Melt State. J. Mater. Process. Technol., 13(2003), 208-213.

[7] Parashkevova, L., N. Bontcheva. Influence of Precipitations on Elastic-plastic Properties of Al Alloys. Comput. Mater. Sci., 47 (2009), 153-161.

[8] Jurci, P., M. Hudakova, M. Domankova, B. Sustarsic, J. Serak. Microstructure and Properties of Binary Al7Cr Alloy prepared by Rapid Solidification, In: Proc. METAL 2008 - 17th International Metallurgical & Material Conference, Czech Republic, Hradec nad Moravicí, May 13-15 2008, CD-ROM - 038.

Journal of Theoretical and Applied Mechanics

The Journal of Institute of Mechanics of Bulgarian Academy of Sciences

Journal Information

CiteScore 2017: 1.14

SCImago Journal Rank (SJR) 2017: 0.217
Source Normalized Impact per Paper (SNIP) 2017: 0.583

Mathematical Citation Quotient (MCQ) 2017: 0.01


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