Shift in the percolation threshold of compressed composites—A 3D Monte Carlo simulation  

作　　者：Chuan LIN Hong-tao WANG Wei YANG 

机构地区：[1]Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China [2]Institute of Applied Mechanics, Zhejiang University Hangzhou 310027, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2010年第10期822-826,共5页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Natural Science Foundation of China (No 10832009);the National Basic Research Program (973) of China (No 2004CB619304);the Science Foundation of Chinese University (No 2009QNA4034)

摘　　要：The shift in the percolation threshold of compressed composites was studied by a 3D continuum percolation model. A Monte Carlo (MC) method was employed in the simulations. The percolation threshold was found to rise with the compression strain, which captures the basic trend in compression-induced conductivity variation from the experiments. Both fiber bending and texture formation contribute to the percolation threshold. The results suggest that fillers with a high aspect ratio are more desirable for sensor and electrical switch applications.The shift in the percolation threshold of compressed composites was studied by a 3D continuum percolation model. A Monte Carlo （MC） method was employed in the simulations. The percolation threshold was found to rise with the compression strain, which captures the basic trend in compression-induced conductivity variation from the experiments. Both fiber bending and texture formation contribute to the percolation threshold. The results suggest that fillers with a high aspect ratio are more desirable for sensor and electrical switch applications.

关 键 词：Monte Carlo （MC） model Percolation threshold Compressed composites 

分 类 号：TM24[一般工业技术—材料科学与工程] TU311.2[电气工程—电工理论与新技术]