مدلسازي رفتار غير الاستيك نانوتيوبهاي كربني توسط مكانيك محيط پيوسته

Modeling of Non-elastic behavior of Carbon Nanotubes upon Continuum Mechanics

As experiments show, there is nonlinear behavior of carbon nanotubes after exceeding a certain boundary surface while loading continues. Avoiding being involved in molecular dynamics methods and quantum mechanics approach, a continuum macro mechanics based method is employed to predict the nonlinear behavior of bonding forces in carbon nanotubes. Both analytical and numerical approaches, assuming elasto-plastic behavior of tubes are considered in this research. The presented results are well compared with the test as well as molecular dynamics results. Finally, the limitation and advantages of the proposed method are pointed out.