aInstitute of Engineering Mechanics, Nanchang University, Jiangxi 330029, PR China
bDepartment of Mathematics, University of Kentucky, 715 Patterson Office Tower, Lexington, KY 40506-0027, USA
Abstract:
Through a semi-phenomenological approach, we have recently derived a simple constitutive relation (HM-V) for aggregates of cubic crystallites with arbitrary texture symmetry. This constitutive relation is quadratic in the texture coefficients of the polycrystal, and it carries four elastic constants. The derivation delivers four explicit formulae which express the four elastic constants of the polycrystal in terms of the three elastic constants of the single cubic crystal and one undetermined parameter. In this paper we use finite-element calculations to check the adequacy of constitutive relation HM-V and to determine the undetermined parameter for copper and iron polycrystals, respectively.