1
مکانیک::
نانو لوله کربنی
Carbon nanotubes (CNTs) have been introduced in order to reinforce PMMA resulting in a composite material which exhibits improved tensile properties, increased fatigue resistance and fracture toughness.
Instead of the classical single fiber model, the present work considers an ensemble of CNTs interacting with a pre-existing crack.
The model is subjected to uni-axial loading in the transverse plane and the interaction between the crack and CNTs is evaluated by determining the stress intensity factor in the vicinity of the crack tips.
The effects of geometric parameters of the CNTs and the material structural heterogeneity on crack propaga- tion trajectory are investigated.
Furthermore, the effects of CNT diameter, wall thickness and elastic mismatch between the matrix and the nanotubes on crack growth are studied.
واژگان شبکه مترجمین ایران