中北大学学报（自然科学版）2016，Vol.37Issue(6)：659-665,7.DOI:10.3969/j.issn.1673-3193.2016.06.018
直线型和弯曲型纳米碳管特性对纳米复合材料有效力学性能的影响
Influence of the Characteristic of Lined and Waved Nano-Tube on Effective Mechanical Properties of Nano-Composites
摘要
Abstract
The model of three dimensional representative volume element for ceramic matrix composites reinforced by the lined and waved nano-tube with solid and tubular cylinder was constituted on the AN-SYS platform.The double scale asymptotic homogenization theory was used to calculate the effective mechanical properties of ceramic composites with nano-tube,and the influence of the geometrical shape and mechanical characteristic of nano-tube on effective stiffness of nano composites was analyzed.The result shows that the difference between the effective stiffness of nano composites reinforced with solid and tubular nano-tube is obvious and non-substitutable.Moreover,the anisotropy of the nanotube de-creases the effective stiffness of nano-composites,and the effective stiffness is over-estimated when the nanotube is taken as the isotropic material.The transverse effective stiffness and shear stiffness of nano-composites are influenced obviously by the waved nano-tube.It is significant to predict the effective stiffness accurately by constituting a correct three dimensional model,and selecting the nano-tube with reasonable shape and size.关键词
纳米碳管/纳米复合材料/有效刚度/双尺度均质化法Key words
nano-tube/nano-composites/effective elastic constants/two-scale homogenization method分类
数理科学引用本文复制引用
宋瑞兰,罗冬梅,谢悦,宿晓如..直线型和弯曲型纳米碳管特性对纳米复合材料有效力学性能的影响[J].中北大学学报（自然科学版）,2016,37(6):659-665,7.基金项目
国家自然科学基金资助项目(10772047/A020206,11172066/A020305) （10772047/A020206,11172066/A020305）
广东省自然科学基金资助项目(S2011010004874) （S2011010004874）
