Abstract
The principles of continuum mechanics can be extended to porous solids only if the effective moduli are known. Although the effective bulk modulus has already been determined by approximating the geometry of a porous solid to be a hollow sphere, bounds could only be established for the other moduli. This problem of indeterminacy of the moduli is solved in this study using a particular model from the variation of the effective Poisson's ratio. In addition to this, the results are extended for the hollow sphere to real geometry by introducing a porositydependent factor. These results are compared with experimental data and the agreement is found to be good. As the effective Poisson's ratio cannot be determined accurately using experiments, the derived equation is verified using finite element analysis.
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References
J. M. Dewey,J. Appl. Phys. 18 (1947) 578.
B. Paul,Trans. AIME 218 (1960) 36.
J. D. Eshelby,Proc. Roy. Soc. 241A (1957) 376.
Z. Hashin,J. Appl. Mech. 29E (1962) 143.
Z. Hashin andS. Shtrikman,J. Mech. Phys. Solids 11 (1963) 127.
R. Hill,ibid. 13 (1965) 213.
B. Budiansky,ibid. 13 (1965) 223.
J. K. Mackenzie,Proc. Phys. Soc. 63B (1950) 2.
K. R. Janowski andR. C. Rossi,J. Amer. Ceram. Soc. 50 (1967) 599.
D. F. Porter, J. S. Reed andD. Lewis III,ibid. 60 (1977) 345.
O. Hunter Jr, H. J. Korklan andR. R. Suchomel,ibid. 57 (1974) 267.
E. A. Dean andJ. A. Lopez,ibid. 66 (1983) 366.
W. R. Manning, O. Hunter Jr andB. R. Powel,ibid. 52 (1969) 436.
R. L. Coble andW. D. Kingery,ibid. 39 (1956) 377.
N. Soga andE. Scheriber,ibid. 51 (1968) 465.
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Ramakrishnan, N., Arunachalam, V.S. Effective elastic moduli of porous solids. J Mater Sci 25, 3930–3937 (1990). https://doi.org/10.1007/BF00582462
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DOI: https://doi.org/10.1007/BF00582462