Abstract
We consider the n-component transversely isotropic unidirectional elastic composites, the longitudinal axis of which is parallel to those of the transversely isotropic components as well as the generators of the cylindrical phase boundaries between them. From the minimum energy and complementary energy principles, with appropriate constant strain and piece-wise constant stress trial fields, optimization and iteration techniques, a set of bounds for the macroscopic (effective) longitudinal elastic constants of the composites (including the simple lower arithmetic average estimate for longitudinal Young modulus Eeff ≥ EV) are constructed. Numerical examples are provided to illustrate the obtained results.
References
- 1.
Hill R . 1952The elastic behaviour of a crystalline aggregate. Proc. Phys. Soc. A 65, 349–354. (doi:10.1088/0370-1298/65/5/307) Crossref, Google Scholar - 2.
Paul B . 1960Prediction of elastic constants of multiphase materials. Trans. ASME 218, 36. Google Scholar - 3.
Hashin Z, Shtrikman S . 1963A variational approach to the theory of the elastic behaviour of multiphase materials. J. Mech. Phys. Solids 11, 127–140. (doi:10.1016/0022-5096(63)90060-7) Crossref, ISI, Google Scholar - 4.
Hill R . 1963Elastic properties of reinforced solids, some theoretical principles. J. Mech. Phys. Solids 11, 357–372. (doi:10.1016/0022-5096(63)90036-X) Crossref, ISI, Google Scholar - 5.
Walpole LJ . 1969On the overall elastic moduli of composite materials. J. Mech. Phys. Solids 17, 235–251. (doi:10.1016/0022-5096(69)90014-3) Crossref, ISI, Google Scholar - 6.
Berdichevski VL . 1983Variational principles of contiuum mechanics. Moscow, Russia: Nauka. Google Scholar - 7.
Pham DC . 1993Bounds on the effective shear modulus of multiphase materials. Int. J. Eng. Sci. 31, 11–17. (doi:10.1016/0020-7225(93)90060-8) Crossref, ISI, Google Scholar - 8.
- 9.
- 10.
Miller MN . 1969Bounds for the effective elastic bulk modulus of heterogeneous materials. J. Math. Phys. 10, 2005–2013. (doi:10.1063/1.1664795) Crossref, ISI, Google Scholar - 11.
Milton GW, Phan-Thien N . 1982New bounds on effective elastic moduli of two-component materials. Proc. R. Soc. Lond. A 380, 305–331. (doi:10.1098/rspa.1982.0044) Link, ISI, Google Scholar - 12.
Phan-Thien N, Milton GW . 1983New third-order bounds on the effective moduli of N-phase composites. Q. Appl. Math. 41, 59–74. (doi:10.1090/qam/700661) Crossref, ISI, Google Scholar - 13.
Pham DC . 1994Bounds for the effective conductivity and elastic moduli of fully-disordered multi-component materials. Arch. Ration. Mech. Anal. 127, 191–198. (doi:10.1007/BF00377661) Crossref, ISI, Google Scholar - 14.
Pham DC . 1997Overall properties of planar quasisymmetric randomly inhomogeneous media: estimates and cell models. Phys. Rev. E 56, 652–660. (doi:10.1103/PhysRevE.56.652) Crossref, ISI, Google Scholar - 15.
Pham DC . 2011On the scatter ranges for the elastic moduli of random aggregates of general anisotropic crystals. Phil. Mag. 91, 609–627. (doi:10.1080/14786435.2010.528459) Crossref, Google Scholar - 16.
Pham DC . 2012Bounds on the elastic moduli of statistically isotropic multicomponent materials and random cell polycrystals. Inter. J. Solids Struct. 49, 2646–2659. (doi:10.1016/j.ijsolstr.2012.05.021) Crossref, ISI, Google Scholar - 17.
Pham DC, Phan-Thien N . 1998Bounds and extremal elastic moduli of isotropic quasi-symmetric multicomponent materials. Int. J. Eng. Sci. 36, 273–281. (doi:10.1016/S0020-7225(97)00068-2) Crossref, ISI, Google Scholar - 18.
- 19.
Pham DC, Le CH, Vuong TMH . 2016Estimates for the elastic moduli of d-dimensional random cell polycrystals. Acta Mech. 227, 2881–2897. (doi:10.1007/s00707-016-1653-y) Crossref, ISI, Google Scholar - 20.
Willis JR . 1977Bounds and self-consistent estimates for the overall moduli of anisotropic composites. J. Mech. Phys. Solids 25, 185–202. (doi:10.1016/0022-5096(77)90022-9) Crossref, ISI, Google Scholar - 21.
Milton GW, Kohn RV . 1988Variational bounds on the effective moduli of anisotropic composites. J. Mech. Phys. Solids 36, 597–629. (doi:10.1016/0022-5096(88)90001-4) Crossref, ISI, Google Scholar - 22.
Hill R . 1964Theory of mechanical properties of fiber-strengthened materials: I. Elastic behaviour. J. Mech. Phys. Solids 12, 199–212. (doi:10.1016/0022-5096(64)90019-5) Crossref, ISI, Google Scholar - 23.
Hashin Z, Rosen BW . 1964The elastic moduli of fiber-reinforced materials. J. Appl. Mech. 31, 223–230. (doi:10.1115/1.3629590) Crossref, Google Scholar - 24.
Hashin Z . 1965On elastic behaviour of fibre reinforced materials of arbitrary transverse phase geometry. J. Mech. Phys. Solids 13, 119–134. (doi:10.1016/0022-5096(65)90015-3) Crossref, ISI, Google Scholar - 25.
Hashin Z . 1972Theory of fiber reinforced materials. NASA-CR-1974, p. 280. Washington, DC: NASA. Google Scholar - 26.
Yeh H-T . 1973Variational bounds of unidirectional fiber-reinforced composites. J. Appl. Phys. 44, 662–665. (doi:10.1063/1.1662240) Crossref, ISI, Google Scholar - 27.
- 28.
Torquato S, Lado F . 1992Improved bounds on the effective elastic moduli of random arrays of cylinders. J. Appl. Mech. Mar 59, 1–6. (doi:10.1115/1.2899429) Crossref, ISI, Google Scholar - 29.
Pham DC . 1999On the elastic constants of transversely isotropic, quasisymmetric composites. ASME J. Appl. Mech. 66, 262–264. (doi:10.1115/1.2789157) Crossref, ISI, Google Scholar - 30.
Rodriguez-Ramos R, Guinovart-Diaz R, Bravo-Castillero J, Sabina FJ, Berger H, Kari S, Gabbert U . 2009Variational bounds for anisotropic elastic multiphase composites with different shapes of inclusions. Arch. Appl. Mech. 79, 695–708. (doi:10.1007/s00419-008-0246-1) Crossref, ISI, Google Scholar - 31.
McCartney LN . 2010Maxwell’s far-field methodology predicting elastic properties of multiphase composites reinforced with aligned transversely isotropic spheroids. Phil. Mag. 90, 31–32. (doi:10.1080/14786431003752142) Crossref, Google Scholar - 32.
Gua J-J, He Q-C . 2017Exact connections between the effective elastic moduli of fibre-reinforced composites with general imperfect interfaces. Int. J. Solids Struct. 104–105, 65–72. (doi:10.1016/j.ijsolstr.2016.10.026) Crossref, ISI, Google Scholar


