Micropolar modeling of planar orthotropic rectangular chiral lattices

作者：Chen Yi; Liu Xiaoning^*; Hu Gengkai

来源：Comptes Rendus Mecanique, 2014, 342(5): 273-283.

DOI：10.1016/j.crme.2014.01.010

• Chiral micropolar elasticity
• Orthotropic
• Rectangular chiral lattice
• Two-dimensional

Rectangular chiral lattices possess a two-fold symmetry; in order to characterize the overall behavior of such lattices, a two-dimensional orthotropic chiral micropolar theory is proposed. Eight additional material constants are necessary to represent the anisotropy in comparison with triangular ones, four of which are devoted to chirality. Homogenization procedures are also developed for the chiral lattice with rigid or deformable circles, all material constants in the developed micropolar theory are derived analytically for the case of the rigid circles and numerically for the case of the deformable circles. The dependences of these material constants and of wave propagation on the microstructural parameters are also examined.

• 出版日期2014-5
• 单位北京理工大学