Title: On a Possible Approximation of Changes in Elastic Properties of a Transversely Isotropic Material due to an Arbitrarily Oriented Crack
Author: Guerrero, Felicia
Other Involved Persons: Sevostianov, Igor
Other Involved Persons: Giraud, Albert
Source: International Journal of Fracture, Vol. 153, No. 2 (2008), p. 169-176
ISSN: 1573-2673
Summary: The present paper addresses an approximate analytical model for contribution of an arbitrarily oriented circular crack into effective elastic compliance of a transversely isotropic material. We numerically examine the bounds of applicability of the hypothesis that change in elastic potential due to an arbitrarily oriented circular crack in a transversely-isotropic material can be approximated by the change calculated for a certain isotropic environment. In particular, we obtained that the error of such an approximation is less than 20% if the extent of anisotropy is moderate – the ratio of Young’s moduli in transverse and in-plane directions is less than 1.87. The obtained result can be used for development of a simple model for microcracked transversely-isotropic materials with mild-to-moderate extent of anisotropy.
URL: http://dx.doi.org/10.1007/s10704-009-9311-1