It takes the average reader 14 hours and 35 minutes to read Nanotube Superfiber Materials by Y.J. Liu
Assuming a reading speed of 250 words per minute. Learn more
In this chapter, a hierarchical multiscale approach for modeling carbon nanotube (CNT) composites using molecular dynamics (MD) at the nanoscale and the boundary element method (BEM) at the microscale is presented. First, the current status in modeling and simulations of CNT composites is reviewed. Then, the basics of MD are introduced and the modeling techniques using MD at the nanoscale to extract the CNT properties and a cohesive interface model for CNT/polymer composites are discussed. Next, the boundary integral equations (BIEs) governing the displacement and stress fields in fiber-reinforced composite models at the microscale are presented. The BEM applied to solve the BIEs numerically is discussed and the fast multipole BEM techniques that are suitable for solving large-scale models are presented. In the numerical studies, parameters in the cohesive interface model are obtained by conducting CNT pull-out simulations with MD and these parameters are subsequently used in the BEM models of the CNT/polymer composites. Marked decreases of the estimated effective Young's moduli are observed using the new BEM models with the cohesive interface conditions as compared with earlier models with perfect bonding interface conditions. The developed BEM models combined with the MD can be a very useful tool for studying interface effects in CNT composites and for large-scale characterizations of such nanocomposites. Future efforts and directions in the research on modeling nanocomposites are offered to conclude this chapter.
Nanotube Superfiber Materials by Y.J. Liu is 848 pages long, and a total of 218,784 words.
This makes it 286% the length of the average book. It also has 267% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 19 hours and 55 minutes to read Nanotube Superfiber Materials aloud.
Nanotube Superfiber Materials is suitable for students ages 12 and up.
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