Phase-field crystal modeling of anisotropic material systems of arbitrary Poisson%26apos;s ratio

作者：Choudhary Muhammad Ajmal^*; Kundin Julia; Emmerich Heike

来源：Philosophical Magazine Letters, 2012, 92(9): 451-458.

DOI：10.1080/09500839.2012.686173

• phase-field crystal
• Poisson%26apos
• s ratio
• elasticity
• anisotropy
• atomistic simulation

Recently, we derived a generalized model for isotropic as well as anisotropic crystal lattice systems of arbitrary Poisson%26apos;s ratio within the framework of the continuum phase-field crystal (PFC) approach [R. Prieler, J. Hubert, D. Li, B. Verleye, R. Haberkern, H. Emmerich, J. Phys.: Condens. Matter 21 (2009) p. 464110] and showed how its parameters can be derived from classical density functional theory [M. A. Choudhary, D. Li, H. Emmerich and H. Lowen, J. Phys.: Condens. Matter 23 (2011) p. 265005]. Here, we present a general procedure to model anisotropic material systems of arbitrary Poisson%26apos;s ratios. In that way we can for the first time identify PFC solutions of arbitrary Poisson%26apos;s ratios and thereby extend the applicability of the PFC method to a larger class of material systems.

• 出版日期2012